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Drop home snapshots, limit root shots to just 5, no btrfs quotas

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cc @ryanrhughes
This commit is contained in:
David Heinemeier Hansson
2026-04-23 09:55:59 +02:00
parent 86a9d3e04c
commit 24ad7c7aba
3 changed files with 64 additions and 18 deletions
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install/login/limine-snapper.sh
+6 -18
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@@ -50,26 +50,14 @@ EOF
# We overwrite the whole thing knowing the limine-update will add the entries for us
sudo cp $OMARCHY_PATH/default/limine/limine.conf /boot/limine.conf
# Match Snapper configs if not installing from the ISO
if [[ -z ${OMARCHY_CHROOT_INSTALL:-} ]]; then
if ! sudo snapper list-configs 2>/dev/null | grep -q "root"; then
sudo snapper -c root create-config /
fi
if ! sudo snapper list-configs 2>/dev/null | grep -q "home"; then
sudo snapper -c home create-config /home
fi
# Only snapshot root — /home is user data; rolling it back loses user work
if ! sudo snapper list-configs 2>/dev/null | grep -q "root"; then
sudo snapper -c root create-config /
fi
sudo cp $OMARCHY_PATH/default/snapper/root /etc/snapper/configs/root
# Enable quota to allow space-aware algorithms to work
sudo btrfs quota enable /
# Tweak default Snapper configs
sudo sed -i 's/^TIMELINE_CREATE="yes"/TIMELINE_CREATE="no"/' /etc/snapper/configs/{root,home}
sudo sed -i 's/^NUMBER_LIMIT="50"/NUMBER_LIMIT="5"/' /etc/snapper/configs/{root,home}
sudo sed -i 's/^NUMBER_LIMIT_IMPORTANT="10"/NUMBER_LIMIT_IMPORTANT="5"/' /etc/snapper/configs/{root,home}
sudo sed -i 's/^SPACE_LIMIT="0.5"/SPACE_LIMIT="0.3"/' /etc/snapper/configs/{root,home}
sudo sed -i 's/^FREE_LIMIT="0.2"/FREE_LIMIT="0.3"/' /etc/snapper/configs/{root,home}
# Disable btrfs quotas — full qgroup accounting is a major performance drag
sudo btrfs quota disable / 2>/dev/null || true
chrootable_systemctl_enable limine-snapper-sync.service
fi