dasandClaude Opus 5.5
ecced4e3f4
- Package Calamares 3.4.3 (Qt6, widgets UI) with xbps-src. - das-installer: Calamares setup for Void/runit with Das OS branding and slides. It copies the clean live image (live-base), builds locales and the host-only initramfs, rewrites kernels without sparse tails (GRUB 2.12 cannot read Btrfs holes at the end of a file), then removes itself. - das-snapshots: flat Btrfs layout (@, @home, @snapshots, @var_log, @var_cache_xbps), snapper with hourly snapshots via cronie, grub-btrfs menu, snapper-rollback, and a dracut module that boots read-only snapshots with a RAM overlay. - das-settings 0.2.0: start LightDM with the system locale. - Live image: GRUB, efibootmgr and the new packages; Das OS /etc/issue. - Build: wipe stale destdirs before building packages. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
50 lines
1.6 KiB
Bash
Executable File
50 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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# Set up snapper for a Das OS root file system on Btrfs.
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#
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# Expects the layout created by the installer: the root in subvolume @ and
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# snapshots in subvolume @snapshots mounted at /.snapshots, which is what
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# snapper-rollback needs. Safe to run again.
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set -eu
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msg() { echo "das-snapper-setup: $*"; }
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if [ "$(id -u)" -ne 0 ]; then
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msg "must be run as root" >&2
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exit 1
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fi
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if [ "$(findmnt -no FSTYPE /)" != btrfs ]; then
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msg "the root file system is not Btrfs, nothing to do"
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exit 0
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fi
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if [ "$(findmnt -no FSTYPE /.snapshots 2>/dev/null)" != btrfs ]; then
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msg "/.snapshots is not a mounted Btrfs subvolume" >&2
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exit 1
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fi
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if [ ! -e /etc/snapper/configs/root ]; then
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install -m 640 /usr/share/das/snapper/root /etc/snapper/configs/root
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msg "created /etc/snapper/configs/root"
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fi
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if ! grep -q '^SNAPPER_CONFIGS=".*\broot\b' /etc/conf.d/snapper; then
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sed -i 's/^SNAPPER_CONFIGS=.*/SNAPPER_CONFIGS="root"/' /etc/conf.d/snapper
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fi
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chmod 750 /.snapshots
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chgrp wheel /.snapshots
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# snapper-rollback mounts the top-level subvolume from this device.
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dev=$(findmnt -no SOURCE / | sed 's/\[.*\]$//')
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uuid=$(blkid -s UUID -o value "$dev")
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sed -i "s|^#\?\s*dev = .*|dev = /dev/disk/by-uuid/$uuid|" /etc/snapper-rollback.conf
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# Name the GRUB submenu that grub-btrfs adds
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cfg=/etc/default/grub-btrfs/config
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if [ -f "$cfg" ] && ! grep -q '^GRUB_BTRFS_SUBMENUNAME=' "$cfg"; then
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echo 'GRUB_BTRFS_SUBMENUNAME="Das OS snapshots"' >>"$cfg"
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fi
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# Hourly snapshots come from cron, and grub-btrfs adds them to the boot menu.
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for sv in cronie grub-btrfs; do
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ln -sfn "/etc/sv/$sv" "/etc/runit/runsvdir/default/$sv"
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done
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msg "snapshots are enabled"
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