Refactor ubuntu-to-mint conversion script
Updated comments for clarity, removed redundant code, and improved error handling. Adjusted LightDM configuration and ensured proper installation procedures.
This commit is contained in:
LINUXexpert.org
+108
-248
@@ -7,7 +7,7 @@
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation, version 3 of the License.
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#
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# This program is distributed in the hope that it will be useful, but
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# This program is distributed in the hope that you have a useful tool, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# for more details.
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@@ -21,14 +21,6 @@ set -euo pipefail
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# Version
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# =========================
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SCRIPT_VERSION="5.1"
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# v5.1 changes:
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# - Added deterministic temp-dir cleanup (EXIT trap)
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# - Added dependency + disk-space preflight gates
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# - Improved plan-mode sandbox permissions and _apt sandbox user
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# - Added APT health gate to reduce "first run partial, second run finishes"
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# - Keyring overwrite now backed up before replacement
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# - Added desktop-session validity diagnostics after install
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# - Hardened display-manager.service enablement (systemd alias mechanics)
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# =========================
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# Globals / Defaults
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@@ -38,9 +30,6 @@ mkdir -p "$LOG_DIR"
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LOG_FILE="${LOG_DIR}/ubuntu-to-mint-$(date +%Y%m%d-%H%M%S).log"
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exec > >(tee -a "$LOG_FILE") 2>&1
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# Temp tracking (cleanup on exit)
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TEMP_DIRS=()
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# CLI defaults
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CMD=""
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EDITION="cinnamon"
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@@ -59,7 +48,7 @@ OS_VERSION_ID=""
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OS_CODENAME=""
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UBUNTU_BASE=""
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DEFAULT_MINT=""
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ALLOWED_TARGETS=() # array
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ALLOWED_TARGETS=()
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# Key handling
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MINT_KEYID="A6616109451BBBF2"
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@@ -68,27 +57,6 @@ SYSTEM_KEYRING="/usr/share/keyrings/linuxmint-repo.gpg"
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# Error handling
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ON_ERROR_BACKUP_HINT=""
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# =========================
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# Error + cleanup traps
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# =========================
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register_tmpdir() {
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local d="${1:-}"
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[[ -n "$d" ]] || return 0
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TEMP_DIRS+=("$d")
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}
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cleanup() {
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# Never fail cleanup
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set +e
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if [[ ${#TEMP_DIRS[@]:-0} -gt 0 ]]; then
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for d in "${TEMP_DIRS[@]:-}"; do
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[[ -n "${d:-}" ]] || continue
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rm -rf "$d" 2>/dev/null || true
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done
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fi
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set -e
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}
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on_err() {
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local rc=$?
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local line="${BASH_LINENO[0]:-unknown}"
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@@ -97,9 +65,7 @@ on_err() {
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[[ -n "${ON_ERROR_BACKUP_HINT:-}" ]] && echo "${ON_ERROR_BACKUP_HINT}"
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exit "$rc"
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}
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trap on_err ERR
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trap cleanup EXIT
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# =========================
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# Pretty output
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@@ -140,7 +106,7 @@ ubuntu-to-mint-convert-v3.sh (v${SCRIPT_VERSION})
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Usage (command-first):
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sudo bash $0 doctor [options]
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sudo bash $0 plan [options]
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sudo bash $0 convert --i-accept-the-risk [options]
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sudo bash $0 convert --i-accept-theISK [options]
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sudo bash $0 rollback /root/ubuntu-to-mint-backup-YYYYMMDD-HHMMSS
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Usage (options-first ALSO supported):
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@@ -156,87 +122,18 @@ Options:
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--keep-ppas Do not disable third-party sources (not recommended)
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--preserve-snap Keep snapd (default: enabled)
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--with-recommends Allow recommended packages (default: off)
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--yes Non-interactive / auto-confirm (also allows non-TTY convert)
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--yes Non-interactive / auto-confirm
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--i-accept-the-risk Required for convert
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EOF
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}
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# =========================
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# Preflight: deps + disk
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# =========================
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check_disk_space_gb() {
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local min_gb="${1:-2}"
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local mode="${2:-hard}" # hard|warn
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local avail_kb
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avail_kb="$(df -Pk / 2>/dev/null | awk 'NR==2{print $4}' || echo 0)"
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[[ "$avail_kb" =~ ^[0-9]+$ ]] || avail_kb=0
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local avail_gb=$(( avail_kb / 1024 / 1024 ))
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if (( avail_gb < min_gb )); then
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if [[ "$mode" == "warn" ]]; then
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warn "Low disk space on /: ~${avail_gb}GB available (recommended >= ${min_gb}GB)."
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return 0
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fi
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die "Insufficient disk space on /: ~${avail_gb}GB available (need >= ${min_gb}GB). Free space and retry."
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fi
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ok "Disk space OK: ~${avail_gb}GB available (>= ${min_gb}GB)."
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}
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check_deps() {
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# allow_install: yes|no
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local allow_install="${1:-no}"
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local -a required_cmds=(bash awk sed grep find tee mktemp df apt-get dpkg apt-mark)
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local -a nice_cmds=(systemctl)
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local -a missing_cmds=()
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for c in "${required_cmds[@]}"; do
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have_cmd "$c" || missing_cmds+=("$c")
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done
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# lock checks rely on fuser (psmisc)
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have_cmd fuser || missing_cmds+=("fuser")
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if [[ ${#missing_cmds[@]} -gt 0 ]]; then
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warn "Missing required commands: ${missing_cmds[*]}"
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if [[ "$allow_install" != "yes" ]]; then
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die "Missing prerequisites. Install required packages (e.g., curl/gnupg/psmisc) or re-run with --yes to auto-install where safe."
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fi
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fi
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# Attempt safe installs when allowed
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if [[ "$allow_install" == "yes" ]]; then
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local -a pkgs=()
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have_cmd curl || pkgs+=(curl)
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have_cmd gpg || pkgs+=(gnupg)
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[[ -r /etc/ssl/certs/ca-certificates.crt ]] || pkgs+=(ca-certificates)
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have_cmd dpkg-deb || pkgs+=(dpkg-dev)
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have_cmd fuser || pkgs+=(psmisc)
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# Helps signed-by for Ubuntu repos
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[[ -r /usr/share/keyrings/ubuntu-archive-keyring.gpg ]] || pkgs+=(ubuntu-keyring)
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if [[ ${#pkgs[@]} -gt 0 ]]; then
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info "Installing missing prerequisites (best-effort): ${pkgs[*]}"
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DEBIAN_FRONTEND=noninteractive apt-get update -y >/dev/null 2>&1 || true
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DEBIAN_FRONTEND=noninteractive apt-get install -y "${pkgs[@]}" >/dev/null 2>&1 || true
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fi
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fi
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for c in "${nice_cmds[@]}"; do
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have_cmd "$c" || warn "Optional command not found: $c (some checks/automation may be limited)."
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done
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ok "Dependency preflight complete."
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}
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# =========================
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# APT / dpkg sanity
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# =========================
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ensure_no_apt_locks() {
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local locks=(/var/lib/dpkg/lock-frontend /var/lib/dpkg/lock /var/lib/apt/lists/lock /var/cache/apt/archives/lock)
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for l in "${locks[@]}"; do
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if [[ -e "$l" ]] && fuser "$l" >/dev/null 2>&1; then
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if fuser "$l" >/dev/null 2>&1; then
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die "APT/dpkg lock is held (lock file: $l). Close package managers and try again."
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fi
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done
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@@ -248,37 +145,6 @@ apt_fix_broken() {
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DEBIAN_FRONTEND=noninteractive apt-get -y -f install || true
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}
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apt_health_gate() {
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# Aim: reduce "partial first run" by refusing to proceed when dpkg/apt is clearly unhappy.
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info "APT health gate (preflight)..."
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local audit_out=""
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audit_out="$(dpkg --audit 2>/dev/null || true)"
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if [[ -n "$audit_out" ]]; then
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warn "dpkg --audit reported issues (attempting to repair):"
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echo "$audit_out"
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fi
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apt_fix_broken
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# Basic repo sanity without touching sources yet.
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set +e
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DEBIAN_FRONTEND=noninteractive apt-get -o Dpkg::Use-Pty=0 -o Acquire::Retries=2 update >/dev/null 2>&1
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local rc=$?
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set -e
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if [[ $rc -ne 0 ]]; then
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warn "apt-get update had issues before conversion. This may be corporate proxy/mirror-related."
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warn "Proceeding, but conversion success probability is reduced."
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fi
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# If dpkg is still in a bad state, stop.
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audit_out="$(dpkg --audit 2>/dev/null || true)"
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if [[ -n "$audit_out" ]]; then
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die "dpkg is still in an unhealthy state after repair attempts. Resolve dpkg/apt issues before converting."
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fi
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ok "APT health gate passed."
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}
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apt_opts_common() {
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local -a opts
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opts=(-y -o Dpkg::Use-Pty=0 -o Acquire::Retries=3)
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@@ -306,7 +172,7 @@ detect_os() {
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[[ "$OS_ID" == "ubuntu" ]] || die "Unsupported OS ID '${OS_ID}'. This script supports Ubuntu bases only."
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case "${OS_CODENAME}" in
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case "$OS_CODENAME" in
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noble)
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UBUNTU_BASE="noble"
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DEFAULT_MINT="zena"
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@@ -334,10 +200,6 @@ detect_os() {
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*) die "Unsupported --edition '${EDITION}'. Allowed: cinnamon|mate|xfce" ;;
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esac
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# Normalize potential whitespace / CRLF
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TARGET_MINT="$(echo -n "$TARGET_MINT" | tr -d '\r' | xargs)"
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EDITION="$(echo -n "$EDITION" | tr -d '\r' | xargs)"
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local found="no"
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for t in "${ALLOWED_TARGETS[@]}"; do
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if [[ "$t" == "$TARGET_MINT" ]]; then found="yes"; break; fi
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@@ -367,7 +229,7 @@ backup_system_state() {
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dpkg-query -W -f='${Package}\t${Version}\n' > "${backup_dir}/dpkg-packages.tsv" || true
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apt-mark showmanual > "${backup_dir}/apt-manual.txt" || true
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apt-mark showhold > "${backup_dir}/apt-holds.txt" || true
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systemctl list-unit-files --state=enabled > "${backup_dir}/enabled-services.txt" 2>/dev/null || true
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systemctl list-unit-files --state=enabled > "${backup_dir}/enabled-services.txt" || true
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if have_cmd snap; then snap list > "${backup_dir}/snap-list.txt" || true; fi
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if have_cmd flatpak; then flatpak list > "${backup_dir}/flatpak-list.txt" || true; fi
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@@ -417,9 +279,7 @@ timeshift_snapshot_best_effort() {
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gpg_key_file_has_keyid() {
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local f="$1"
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local keyid="$2"
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gpg --batch --with-colons --show-keys "$f" 2>/dev/null \
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| awk -F: '$1=="pub"||$1=="sub"{print toupper($5)}' \
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| grep -qx "$(echo "$keyid" | tr '[:lower:]' '[:upper:]')"
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gpg --batch --with-colons --show-keys "$f" 2>/dev/null | awk -F: '$1=="pub"||$1=="sub"{print toupper($5)}' | grep -qx "$(echo "$keyid" | tr '[:lower:]' '[:upper:]')"
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}
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ubuntu_archive_keyring_path() {
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@@ -440,7 +300,6 @@ mint_keyring_build_from_linuxmint_keyring_deb() {
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local tmpdir
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tmpdir="$(mktemp -d)"
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register_tmpdir "$tmpdir"
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chmod 700 "$tmpdir"
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local pool_https="https://packages.linuxmint.com/pool/main/l/linuxmint-keyring/"
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@@ -453,12 +312,13 @@ mint_keyring_build_from_linuxmint_keyring_deb() {
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elif index="$(curl -fsSL "$pool_http" 2>/dev/null)"; then
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:
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else
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rm -rf "$tmpdir"
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die "Unable to fetch linuxmint-keyring pool index (blocked network/proxy?)"
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fi
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local debs
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debs="$(printf '%s' "$index" | grep -oE 'linuxmint-keyring_[0-9][^"]*_all\.deb' | sort -Vu | uniq || true)"
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[[ -n "$debs" ]] || die "Could not find linuxmint-keyring_*.deb in pool index."
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[[ -n "$debs" ]] || { rm -rf "$tmpdir"; die "Could not find linuxmint-keyring_*.deb in pool index." ; }
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local deb
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deb="$(printf '%s\n' "$debs" | tail -n 1)"
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@@ -471,16 +331,15 @@ mint_keyring_build_from_linuxmint_keyring_deb() {
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deb_url="${pool_http}${deb}"
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fi
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curl -fSL "$deb_url" -o "${tmpdir}/${deb}" || die "Failed to download ${deb_url}"
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curl -fSL "$deb_url" -o "${tmpdir}/${deb}" || { rm -rf "$tmpdir"; die "Failed to download ${deb_url}"; }
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mkdir -p "${tmpdir}/extract"
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dpkg-deb -x "${tmpdir}/${deb}" "${tmpdir}/extract"
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local -a candidates=()
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while IFS= read -r f; do candidates+=("$f"); done < <(
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find "${tmpdir}/extract" -type f \( -name '*.gpg' -o -name '*.asc' -o -name '*.key' \) 2>/dev/null | sort
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)
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[[ ${#candidates[@]} -gt 0 ]] || die "No key candidates found inside linuxmint-keyring deb."
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while IFS= read -r f; do candidates+=("$f"); done < <(find "${tmpdir}/extract" -type f \( -name '*.gpg' -o -name '*.asc' -o -name '*.key' \) 2>/dev/null | sort)
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[[ ${#candidates[@]} -gt 0 ]] || { rm -rf "$tmpdir"; die "No key candidates found inside linuxmint-keyring deb." ; }
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local chosen=""
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for f in "${candidates[@]}"; do
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@@ -489,7 +348,13 @@ mint_keyring_build_from_linuxmint_keyring_deb() {
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break
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fi
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done
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[[ -n "$chosen" ]] || die "None of the candidate key files contained keyid ${MINT_KEYID}."
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[[ -n "$chosen" ]] || {
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warn "Candidates found:"
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printf ' - %s\n' "${candidates[@]}" || true
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rm -rf "$tmpdir"
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die "None of the candidate key files contained keyid ${MINT_KEYID}."
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}
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mkdir -p "$(dirname "$out_keyring")"
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@@ -499,18 +364,19 @@ mint_keyring_build_from_linuxmint_keyring_deb() {
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info "Using key candidate: $chosen"
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if [[ "$chosen" == *.asc || "$chosen" == *.key ]]; then
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grep -q "BEGIN PGP PUBLIC KEY BLOCK" "$chosen" 2>/dev/null || die "Selected key candidate is not armored PGP: $chosen"
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grep -q "BEGIN PGP PUBLIC KEY BLOCK" "$chosen" 2>/dev/null || { rm -rf "$tmpdir"; die "Selected key candidate is not armored PGP: $chosen"; }
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gpg --batch --dearmor -o "$tmp_out" "$chosen"
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else
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cp -a "$chosen" "$tmp_out"
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fi
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gpg_key_file_has_keyid "$tmp_out" "$MINT_KEYID" || die "Built keyring does not contain ${MINT_KEYID}"
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gpg_key_file_has_keyid "$tmp_out" "$MINT_KEYID" || { rm -rf "$tmpdir"; die "Built keyring does not contain ${MINT_KEYID}"; }
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rm -f "$out_keyring"
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install -m 0644 "$tmp_out" "$out_keyring"
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ok "Mint repo keyring written: $out_keyring (contains ${MINT_KEYID})"
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rm -rf "$tmpdir"
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}
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mint_repo_key_install_system() {
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@@ -524,9 +390,7 @@ mint_repo_key_install_system() {
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fi
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if [[ "$ASSUME_YES" == "yes" ]]; then
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local bkp="/root/ubuntu2mint-linuxmint-repo-keyring-backup-$(date +%Y%m%d-%H%M%S).gpg"
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warn "Existing keyring does not contain expected key; backing up to ${bkp} then overwriting due to --yes."
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cp -a "$keyring" "$bkp" 2>/dev/null || true
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warn "Existing keyring does not contain expected key; overwriting due to --yes."
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rm -f "$keyring"
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else
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warn "Existing keyring at ${keyring} does not contain expected key ${MINT_KEYID}."
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@@ -658,65 +522,103 @@ verify_session_desktop_exists() {
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}
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force_display_manager_symlink() {
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# Enforce /etc/systemd/system/display-manager.service -> lightdm.service when possible.
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# Some systems end up with display-manager.service still pointing to gdm3 (or missing).
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# LightDM's unit typically provides Alias=display-manager.service, but we enforce if needed.
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if [[ -d /run/systemd/system ]]; then
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if [[ -f /lib/systemd/system/lightdm.service ]]; then
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mkdir -p /etc/systemd/system
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ln -sf /lib/systemd/system/lightdm.service /etc/systemd/system/display-manager.service || true
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elif [[ -f /usr/lib/systemd/system/lightdm.service ]]; then
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mkdir -p /etc/systemd/system
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ln -sf /usr/lib/systemd/system/lightdm.service /etc/systemd/system/display-manager.service || true
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fi
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fi
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}
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preseed_lightdm_default_display_manager() {
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# In DEBIAN_FRONTEND=noninteractive, installing lightdm alongside an existing DM
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# defaults to keeping the current DM (often gdm3). We must preseed debconf so
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# dpkg is instructed to pick LightDM authoritatively.
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info "Pre-seeding default display manager to LightDM (debconf)..."
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if ! have_cmd debconf-set-selections; then
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info "Installing debconf-utils (for debconf-set-selections)..."
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DEBIAN_FRONTEND=noninteractive apt-get $(apt_opts_common) install debconf-utils >/dev/null 2>&1 || true
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fi
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if have_cmd debconf-set-selections; then
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printf "lightdm shared/default-x-display-manager select lightdm\n" | debconf-set-selections || true
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printf "gdm3 shared/default-x-display-manager select lightdm\n" | debconf-set-selections || true
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printf "sddm shared/default-x-display-manager select lightdm\n" | debconf-set-selections || true
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ok "Debconf preseed staged: shared/default-x-display-manager=lightdm"
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else
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warn "debconf-set-selections unavailable; will rely on manual enforcement."
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fi
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}
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ensure_lightdm_on_boot() {
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if [[ ! -d /run/systemd/system ]]; then
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warn "systemd not detected; cannot enable LightDM on boot in this environment."
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return 0
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||||
fi
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||||
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||||
info "Ensuring LightDM starts on boot (graphical.target + display-manager.service)..."
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info "Ensuring LightDM starts on boot (authoritative default selection + systemd enable)..."
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||||
|
||||
DEBIAN_FRONTEND=noninteractive apt-get install -y lightdm slick-greeter >/dev/null 2>&1 || true
|
||||
# 0) Ensure debconf is seeded BEFORE any install/reconfigure paths
|
||||
preseed_lightdm_default_display_manager
|
||||
|
||||
# Unmask anything that could block startup
|
||||
systemctl unmask lightdm.service >/dev/null 2>&1 || true
|
||||
systemctl unmask display-manager.service >/dev/null 2>&1 || true
|
||||
# 1) Ensure packages exist (noninteractive safe)
|
||||
DEBIAN_FRONTEND=noninteractive apt-get $(apt_opts_common) install lightdm slick-greeter >/dev/null 2>&1 || true
|
||||
|
||||
# 2) Force dpkg to apply the default-display-manager choice using maintainer scripts
|
||||
# (updates /etc/X11/default-display-manager and update-alternatives; often the systemd alias too)
|
||||
if ! have_cmd dpkg-reconfigure; then
|
||||
DEBIAN_FRONTEND=noninteractive apt-get $(apt_opts_common) install debconf >/dev/null 2>&1 || true
|
||||
fi
|
||||
|
||||
if have_cmd dpkg-reconfigure && dpkg -s lightdm >/dev/null 2>&1; then
|
||||
info "Running dpkg-reconfigure (noninteractive) for lightdm..."
|
||||
DEBIAN_FRONTEND=noninteractive dpkg-reconfigure -f noninteractive lightdm >/dev/null 2>&1 || warn "dpkg-reconfigure lightdm failed; continuing with manual enforcement."
|
||||
else
|
||||
warn "dpkg-reconfigure not available or lightdm not installed; skipping reconfigure."
|
||||
fi
|
||||
|
||||
# 3) Standard systemd setup
|
||||
systemctl unmask lightdm >/dev/null 2>&1 || true
|
||||
systemctl unmask display-manager >/dev/null 2>&1 || true
|
||||
|
||||
# Boot to graphical target
|
||||
systemctl set-default graphical.target >/dev/null 2>&1 || true
|
||||
systemctl enable graphical.target >/dev/null 2>&1 || true
|
||||
|
||||
# Default display manager selection (Debian/Ubuntu mechanism)
|
||||
# 4) Safety net: explicitly set canonical knobs even if dpkg scripts didn't
|
||||
echo "/usr/sbin/lightdm" > /etc/X11/default-display-manager || true
|
||||
if have_cmd update-alternatives; then
|
||||
update-alternatives --set x-display-manager /usr/sbin/lightdm >/dev/null 2>&1 || true
|
||||
fi
|
||||
|
||||
# If GDM exists, disable it so it can't steal the login screen
|
||||
if systemctl list-unit-files 2>/dev/null | awk '{print $1}' | grep -qx 'gdm3.service'; then
|
||||
systemctl disable --now gdm3.service >/dev/null 2>&1 || true
|
||||
systemctl mask gdm3.service >/dev/null 2>&1 || true
|
||||
fi
|
||||
|
||||
# Ensure the display-manager alias points to lightdm
|
||||
# 5) Ensure display-manager alias points to LightDM (covers "missing display-manager.service" cases)
|
||||
force_display_manager_symlink
|
||||
|
||||
systemctl daemon-reload >/dev/null 2>&1 || true
|
||||
|
||||
# Enable display-manager.service (the alias most systems rely on)
|
||||
systemctl enable display-manager.service >/dev/null 2>&1 || true
|
||||
# Disable competing DM so it can't steal the greeter on boot
|
||||
if systemctl list-unit-files 2>/dev/null | awk '{print $1}' | grep -qx 'gdm3.service'; then
|
||||
systemctl disable --now gdm3 >/dev/null 2>&1 || true
|
||||
systemctl mask gdm3 >/dev/null 2>&1 || true
|
||||
fi
|
||||
|
||||
# lightdm.service may be "static" on some Ubuntu builds; enabling may be a no-op (fine)
|
||||
# Enable LightDM
|
||||
systemctl enable lightdm.service >/dev/null 2>&1 || true
|
||||
systemctl enable lightdm >/dev/null 2>&1 || true
|
||||
|
||||
# Try to (re)enable links if previously swapped
|
||||
systemctl reenable display-manager.service >/dev/null 2>&1 || true
|
||||
systemctl reenable lightdm.service >/dev/null 2>&1 || true
|
||||
# If display-manager exists now, enable it too
|
||||
systemctl enable display-manager >/dev/null 2>&1 || true
|
||||
|
||||
# Recreate enablement links (helps when units were swapped previously)
|
||||
systemctl reenable lightdm >/dev/null 2>&1 || true
|
||||
|
||||
# Start now (best-effort)
|
||||
systemctl restart display-manager.service >/dev/null 2>&1 || true
|
||||
systemctl restart lightdm.service >/dev/null 2>&1 || true
|
||||
systemctl restart lightdm >/dev/null 2>&1 || true
|
||||
|
||||
ok "LightDM configured to start on boot."
|
||||
ok "LightDM configured to start on boot (debconf + dpkg-reconfigure + safety net)."
|
||||
}
|
||||
|
||||
ensure_lightdm_defaults() {
|
||||
@@ -724,7 +626,11 @@ ensure_lightdm_defaults() {
|
||||
sess="$(session_name_for_edition)"
|
||||
|
||||
info "Configuring LightDM defaults for edition=${EDITION} (session=${sess})"
|
||||
DEBIAN_FRONTEND=noninteractive apt-get install -y lightdm slick-greeter
|
||||
|
||||
# Preseed DM choice BEFORE any install that might prompt (even in noninteractive)
|
||||
preseed_lightdm_default_display_manager
|
||||
|
||||
DEBIAN_FRONTEND=noninteractive apt-get $(apt_opts_common) install lightdm slick-greeter >/dev/null 2>&1 || true
|
||||
|
||||
mkdir -p /etc/lightdm/lightdm.conf.d
|
||||
|
||||
@@ -778,6 +684,7 @@ EOF
|
||||
done
|
||||
|
||||
verify_session_desktop_exists "$sess" || true
|
||||
|
||||
ensure_lightdm_on_boot
|
||||
ok "LightDM defaults applied; default session set to ${sess}."
|
||||
}
|
||||
@@ -802,7 +709,6 @@ apply_mintupdate_icon_diversion() {
|
||||
# =========================
|
||||
post_install_sanity() {
|
||||
local out_file="${1:-/tmp/post-convert-validation.txt}"
|
||||
mkdir -p "$(dirname "$out_file")" 2>/dev/null || true
|
||||
|
||||
{
|
||||
echo "Post-conversion validation ($(date -Is))"
|
||||
@@ -821,9 +727,9 @@ post_install_sanity() {
|
||||
echo "Boot/display settings:"
|
||||
echo "default-display-manager: $(cat /etc/X11/default-display-manager 2>/dev/null || echo MISSING)"
|
||||
echo "default target: $(systemctl get-default 2>/dev/null || echo unknown)"
|
||||
echo "lightdm enabled: $(systemctl is-enabled lightdm.service 2>/dev/null || echo unknown)"
|
||||
echo "display-manager enabled: $(systemctl is-enabled display-manager.service 2>/dev/null || echo unknown)"
|
||||
echo "gdm3 enabled: $(systemctl is-enabled gdm3.service 2>/dev/null || echo not-installed)"
|
||||
echo "lightdm enabled: $(systemctl is-enabled lightdm 2>/dev/null || echo unknown)"
|
||||
echo "display-manager enabled: $(systemctl is-enabled display-manager 2>/dev/null || echo unknown)"
|
||||
echo "gdm3 enabled: $(systemctl is-enabled gdm3 2>/dev/null || echo not-installed)"
|
||||
echo
|
||||
echo "display-manager.service link:"
|
||||
ls -l /etc/systemd/system/display-manager.service 2>/dev/null || true
|
||||
@@ -833,41 +739,16 @@ post_install_sanity() {
|
||||
ok "Post-conversion validation written: $out_file"
|
||||
}
|
||||
|
||||
validate_desktop_session_runtime() {
|
||||
local sess
|
||||
sess="$(session_name_for_edition)"
|
||||
|
||||
info "Desktop session diagnostics (non-fatal)..."
|
||||
verify_session_desktop_exists "$sess" || true
|
||||
|
||||
case "$EDITION" in
|
||||
cinnamon)
|
||||
have_cmd cinnamon-session || warn "Missing command: cinnamon-session (Cinnamon logins may fail)."
|
||||
have_cmd muffin || warn "Missing command: muffin (Cinnamon compositor)."
|
||||
if [[ -x /usr/bin/csd-power ]]; then
|
||||
if /usr/bin/csd-power --help >/dev/null 2>&1; then
|
||||
ok "csd-power runs (basic)."
|
||||
else
|
||||
warn "csd-power appears broken (may cause Cinnamon login loop). Consider reinstalling cinnamon-settings-daemon."
|
||||
fi
|
||||
fi
|
||||
;;
|
||||
xfce)
|
||||
have_cmd xfce4-session || warn "Missing command: xfce4-session."
|
||||
;;
|
||||
mate)
|
||||
have_cmd mate-session || warn "Missing command: mate-session."
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
# =========================
|
||||
# Install stack with retry (reduces "first run partial, second run completes")
|
||||
# Install stack with retry (fixes "first run partial, second run completes")
|
||||
# =========================
|
||||
install_mint_stack_with_retry() {
|
||||
local meta="$1"
|
||||
shift || true
|
||||
|
||||
# Ensure DM choice is preseeded BEFORE meta install (lightdm often pulled as dependency)
|
||||
preseed_lightdm_default_display_manager
|
||||
|
||||
local -a pkgs=(
|
||||
"$meta"
|
||||
mint-meta-core
|
||||
@@ -906,56 +787,43 @@ install_mint_stack_with_retry() {
|
||||
# =========================
|
||||
apt_tmp_run() {
|
||||
local tmpapt="$1"; shift
|
||||
local -a extra=(
|
||||
-o "Dir=${tmpapt}"
|
||||
local -a extra=(-o "Dir=${tmpapt}"
|
||||
-o "Dir::State::status=/var/lib/dpkg/status"
|
||||
-o "Dir::Etc::sourcelist=${tmpapt}/etc/apt/sources.list"
|
||||
-o "Dir::Etc::sourceparts=${tmpapt}/etc/apt/sources.list.d"
|
||||
-o "Dir::Etc::preferencesparts=${tmpapt}/etc/apt/preferences.d"
|
||||
-o "Dir::Cache=${tmpapt}/var/cache/apt"
|
||||
-o "Dir::State=${tmpapt}/var/lib/apt"
|
||||
-o "Dir::State::Lists=${tmpapt}/var/lib/apt/lists"
|
||||
-o "APT::Sandbox::User=_apt"
|
||||
)
|
||||
-o "Dir::State::Lists=${tmpapt}/var/lib/apt/lists")
|
||||
apt-get "${extra[@]}" "$@"
|
||||
}
|
||||
|
||||
plan_fix_tmpapt_perms() {
|
||||
local tmpapt="$1"
|
||||
|
||||
chmod 755 "$tmpapt" 2>/dev/null || true
|
||||
chmod 755 "$tmpapt" || true
|
||||
chmod 755 "$tmpapt"/{etc,usr,var} 2>/dev/null || true
|
||||
chmod 755 "$tmpapt"/var/{lib,cache} 2>/dev/null || true
|
||||
chmod 755 "$tmpapt"/var/lib/apt 2>/dev/null || true
|
||||
chmod 755 "$tmpapt"/var/cache/apt 2>/dev/null || true
|
||||
|
||||
if id _apt >/dev/null 2>&1; then
|
||||
if [[ -d "$tmpapt/var/lib/apt/lists/partial" ]]; then
|
||||
chown -R _apt:root "$tmpapt/var/lib/apt/lists/partial" 2>/dev/null || true
|
||||
chmod 755 "$tmpapt/var/lib/apt/lists/partial" 2>/dev/null || true
|
||||
fi
|
||||
if [[ -d "$tmpapt/var/cache/apt/archives/partial" ]]; then
|
||||
chown -R _apt:root "$tmpapt/var/cache/apt/archives/partial" 2>/dev/null || true
|
||||
chmod 755 "$tmpapt/var/lib/apt/lists/partial" 2>/dev/null || true
|
||||
chmod 755 "$tmpapt/var/cache/apt/archives/partial" 2>/dev/null || true
|
||||
fi
|
||||
# Ensure lists/archives roots are readable by _apt
|
||||
chown -R _apt:root "$tmpapt/var/lib/apt/lists" "$tmpapt/var/cache/apt/archives" 2>/dev/null || true
|
||||
fi
|
||||
}
|
||||
|
||||
plan_mode() {
|
||||
need_root
|
||||
check_deps "yes"
|
||||
ensure_no_apt_locks
|
||||
detect_os
|
||||
check_disk_space_gb 2 hard
|
||||
|
||||
info "Running plan mode (dry-run) with temporary APT root..."
|
||||
|
||||
local tmpapt
|
||||
tmpapt="$(mktemp -d)"
|
||||
register_tmpdir "$tmpapt"
|
||||
|
||||
mkdir -p "${tmpapt}/etc/apt/sources.list.d" \
|
||||
"${tmpapt}/etc/apt/preferences.d" \
|
||||
"${tmpapt}/var/lib/apt/lists/partial" \
|
||||
@@ -1015,6 +883,8 @@ EOF
|
||||
local rc=${PIPESTATUS[0]}
|
||||
set -e
|
||||
|
||||
rm -rf "$tmpapt"
|
||||
|
||||
if [[ $rc -ne 0 ]]; then
|
||||
warn "Plan simulation failed (exit $rc). Review: $plan_out"
|
||||
exit $rc
|
||||
@@ -1028,10 +898,8 @@ EOF
|
||||
# =========================
|
||||
doctor() {
|
||||
need_root
|
||||
check_deps "${ASSUME_YES}"
|
||||
ensure_no_apt_locks
|
||||
detect_os
|
||||
check_disk_space_gb 2 warn
|
||||
|
||||
info "Doctor checks..."
|
||||
apt_fix_broken
|
||||
@@ -1082,21 +950,17 @@ show_disclaimer_and_require_ack() {
|
||||
|
||||
convert() {
|
||||
need_root
|
||||
check_deps "yes"
|
||||
ensure_no_apt_locks
|
||||
detect_os
|
||||
check_disk_space_gb 6 hard
|
||||
show_disclaimer_and_require_ack
|
||||
|
||||
# Make first run succeed more often:
|
||||
apt_health_gate
|
||||
apt_fix_broken
|
||||
|
||||
local backup_dir
|
||||
backup_dir="$(backup_system_state)"
|
||||
disable_thirdparty_sources_system "$backup_dir"
|
||||
timeshift_snapshot_best_effort
|
||||
|
||||
# Deterministic repo verification:
|
||||
mint_repo_key_install_system
|
||||
write_mint_sources_system
|
||||
write_mint_pinning_system
|
||||
@@ -1118,16 +982,12 @@ convert() {
|
||||
DEBIAN_FRONTEND=noninteractive apt-get $(apt_opts_common) install snapd || true
|
||||
fi
|
||||
|
||||
# Fix: /etc/X11/Xsession.d/* has_option command not found
|
||||
info "Reinstalling x11-common (fixes Xsession has_option issues)..."
|
||||
DEBIAN_FRONTEND=noninteractive apt-get $(apt_opts_common) install --reinstall x11-common || true
|
||||
|
||||
# Apply LightDM defaults AFTER the desktop is installed
|
||||
ensure_lightdm_defaults
|
||||
|
||||
validate_desktop_session_runtime || true
|
||||
|
||||
mkdir -p "$backup_dir" 2>/dev/null || true
|
||||
mkdir -p "$backup_dir"
|
||||
post_install_sanity "${backup_dir}/post-convert-validation.txt" || true
|
||||
|
||||
ok "Conversion steps completed."
|
||||
|
||||
Reference in New Issue
Block a user