Am 01.10.2012 15:50, schrieb Paul Gideon Dann:
Makes sense. I would certainly think twice for something as complex as a full interactive desktop setup. I hold by NFS for this cluster, though.
If you don't run a desktop, then you may be fine.
I really like your sync-on-boot solution. I'd like to store this information away for future use. How did you implement it? Something in an initrd hook?
sysupgrade install hook (run without autodetect): build() { add_binary rsync add_binary findmnt add_binary "/usr/lib/initcpio/ipconfig" "/bin/ipconfig" add_runscript add_checked_modules "/drivers/net" add_module nfs add_file "/root/sync/sync-include-file" "/sync-include-file" } help() { cat <<HELPEOF Custom Arch Linux Update on Boot HELPEOF } sysupgrade run hook: run_hook() { ipconfig ip=dhcp mount_handler="sysupgrade_mount_handler" } sysupgrade_mount_handler() { default_mount_handler "$@" # mount /boot if it exists realtab=/new_root/etc/fstab if [ -f "$realtab" ]; then if boot_source=$(findmnt -snero source --tab-file="$realtab" /boot); then mountopts=$(findmnt -snero options --tab-file="$realtab" /boot) fsck_device "$boot_source" msg ":: mounting '$boot_source' on /boot" mount "$boot_source" /new_root/boot -o "$mountopts" fi fi rsync --delete -ahvuHPAXE \ --include-from /sync-include-file \ 192.168.0.1::arch_sysupgrade/ /new_root/ msg ":: umounting '$boot_source' from /boot" umount /new_root/boot } my sync_include_file looks like this: # System files - /boot/syslinux/ldlinux.sys - /boot/lost+found/ + /dev/ - /dev/* + /home/ - /home/* - /lost+found/ + /media/ - /media/* + /mnt/ - /mnt/* + /proc/ - /proc/* + /run/ - /run/* - /root/.* + /sys/ - /sys/* + /tmp/ - /tmp/* + /usr/local/ - /usr/local/* - /var/tmp/**/ + /var/**/ + /var/lock + /var/run + /var/mail + /var/lib/pacman/** + /var/lib/texmf/** - /var/** # Site-specific config files - /boot/syslinux/syslinux.cfg - /etc/hostname - /etc/fstab - /etc/resolv.conf - /etc/ssh/ssh_host_* - /etc/udev/rules.d/01-site-input.rules - /etc/X11/xorg.conf_* - /etc/X11/xorg.conf.d/05-local-keyboard.conf - /usr/share/config/kdm/kdmrc Note that this syncs the whole content of /var/lib/{pacman,texmf}, but otherwise only recreates the directory structure of /var and does not sync any files. Also note that you must load the kernel and initramfs from the network when running sysupgrade, so you can boot directly into the updated system when finished without a further reboot.