dasandClaude Opus 5.5
eba4516998
- server/ profile and build-iso.sh [desktop|server]; make iso-server, make qemu-server, run-qemu.sh --serial; login on tty and ttyS0 - das-server: SSH, chrony, NetworkManager/dhcpcd, Docker with Compose, nftables (closed except SSH, own table), fail2ban reading socklog, sshd without root passwords, Docker log rotation, tools - das-server-install: dialog installer in Ukrainian and English, or unattended with --config; GPT + Btrfs subvolumes, GRUB for UEFI and BIOS, serial console, SSH key with optional keys-only logins - das-install-common: mount-source and postinstall shared with Calamares - dsv: runit service manager (list, enable, disable, start, stop, restart, status, logs) with bash completion, also on the desktop - das-update split into a subpackage without GTK; the window and tray icon move to /usr/libexec/das/das-update-gui - das-snapper-setup enables dbus, which snapper needs - TODO: ISO size review with measured numbers and options Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
52 lines
1.7 KiB
Bash
Executable File
52 lines
1.7 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"' >>"$cfg"
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fi
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# Hourly snapshots come from cron, and grub-btrfs adds them to the boot menu.
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# snapper talks to snapperd over the system bus (the server has no desktop
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# that would enable dbus).
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for sv in dbus cronie grub-btrfs; do
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ln -sfn "/etc/sv/$sv" "/etc/runit/runsvdir/default/$sv"
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done
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msg "snapshots are enabled"
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