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50 lines
1.6 KiB
50 lines
1.6 KiB
#!/usr/bin/env bash |
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# Mount home as an overlay filesystem |
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# Log stdout & stderr |
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exec > >(tee -i /tmp/gdm3_postlogin.log) 2>&1 |
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# Treat unset variables as an error when substituting. |
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set -u |
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# Exit immediately if a command exits with a non-zero status. |
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set -e |
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# Separate tokens on newlines only |
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IFS=' |
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' |
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# The value of this parameter is expanded like PS1 and the expanded value is the |
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# prompt printed before the command line is echoed when the -x option is set |
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# (see The Set Builtin). The first character of the expanded value is replicated |
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# multiple times, as necessary, to indicate multiple levels of indirection. |
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# \D{%F %T} prints date like this : 2019-12-31 23:59:59 |
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PS4='-\D{%F %T} ' |
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# Print commands and their arguments as they are executed. |
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set -x |
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# Make sure the mountpoints are free |
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kill $(lsof -t "$HOME" /mnt) ||: |
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umount "$HOME" /mnt ||: |
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if test -e /dev/disk/by-partlabel/01-home; then |
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mount -o noatime /dev/disk/by-partlabel/01-home /mnt |
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else |
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# Fails if no local partition is found |
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test -e /dev/disk/by-partlabel/01-tmp-home || exit 1 |
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# We don't care about data consistency since the partition is temporary so disable journaling |
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/sbin/mke2fs -t ext4 -O ^has_journal -F /dev/disk/by-partlabel/01-tmp-home |
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mount -o noatime,nobarrier /dev/disk/by-partlabel/01-tmp-home /mnt |
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fi |
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user_path=/mnt/.01/user |
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temp_path=/mnt/.01/tmp |
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mkdir -p "$user_path" "$temp_path" |
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chown -R "$USER":"$USER" "$user_path" "$temp_path" |
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mount -t overlay -o lowerdir="$HOME",upperdir="$user_path",workdir="$temp_path" overlay "$HOME" |
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mkdir -p "$HOME"/.cache |
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mount -t tmpfs -o size=2G tmpfs "$HOME"/.cache
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