21 lines
944 B
Bash
21 lines
944 B
Bash
swapoff /swapfile /var/swap.old 2>/dev/null
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rm -f /swapfile /var/swap.old
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# Swap lines in /etc/fstab that weren't there before go (the spare disk's
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# swap is turned off when the disk is removed).
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awk 'NR == FNR { keep[$0] = 1; next }
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!/^[[:space:]]*#/ && $3 == "swap" && !($0 in keep) { next }
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{ print }' "$LAB_STATE/fstab-swap" /etc/fstab >/etc/fstab.le-lab && cat /etc/fstab.le-lab >/etc/fstab
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rm -f /etc/fstab.le-lab
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systemctl daemon-reload
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# Swappiness settings added since setup go, and the old value comes back.
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for f in /etc/sysctl.conf /etc/sysctl.d/*.conf; do
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[ -f "$f" ] || continue
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grep -qxF "$f" "$LAB_STATE/sysctl-files" 2>/dev/null && continue
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grep -qE '^[[:space:]]*vm[./]swappiness' "$f" || continue
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sed -i -E '/^[[:space:]]*vm[./]swappiness/d' "$f"
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[ "$f" != /etc/sysctl.conf ] && ! grep -qEv '^[[:space:]]*(#|$)' "$f" && rm -f "$f"
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done
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old=$(state_get swappiness)
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[ -n "$old" ] && sysctl -qw vm.swappiness="$old"
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true
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