Files
grub-btrfs/README.md
Antynea 5ea4c86400 Enhanced
add a option to : specific path to ignore during run grub-mkconfig
e.g :
# Found Snapshot: 2016-03-31 10:26:52 var/lib/docker/btrfs/subvolumes/74040aee4fa

docker is not a real snapshot available to boot
add : GRUB_BTRFS_IGNORE_SPECIFIC_PATH=("var/lib/docker") to your /etc/default/grub
and this path will be skip during run grub-mkconfig

Warning : copy exactly the right path (var/lib/docker , not /var/lib/docker/), do not put the full path
2016-04-19 02:28:19 +02:00

95 lines
2.5 KiB
Markdown

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### grub-btrfs
This is a version 1.xx of grub-btrfs
#### Description
grub-btrfs, Include btrfs snapshots at boot options. (grub menu)
#### What does grub-btrfs v1.xx do :
Simple rollback using snapshots you made previously.
* Automatically List snapshots existing on root partition (btrfs).
* Automatically Detect if "/boot" is in separate partition.
* Automatically Detect kernel, initramfs and intel microcode in "/boot" directory on snapshots. (For custon name, see below.)
* Automatically Create corresponding "menuentry" in grub.cfg , which ensures a very easy rollback.
#### How to use it:
Add this lines to /etc/default/grub:
* GRUB_BTRFS_SUBMENUNAME="ArchLinux Snapshots"
(Name menu appearing in grub.)
* GRUB_BTRFS_PREFIXENTRY="Snapshot:"
(Add a name ahead your snapshots entries.)
* GRUB_BTRFS_DISPLAY_PATH_SNAPSHOT="true"
(Show full path snapshot or only name)
* GRUB_BTRFS_TITLE_FORMAT="p/d/n"
(Custom title, shows/hides p"prefix" d"date" n"name" in grub-menu, separator "/", custom order available)
* GRUB_BTRFS_NKERNEL=("vmlinuz-linux")
(Use only if you have custom kernel name or auto-detect failed.)
* GRUB_BTRFS_NINIT=("initramfs-linux.img" "initramfs-linux-fallback.img")
(Use only if you have custom initramfs name or auto-detect failed.)
* GRUB_BTRFS_INTEL_UCODE=("intel-ucode.img")
(Use only if you have custom intel-ucode or auto-detect failed.)
* GRUB_BTRFS_LIMIT="100"
(Limit the number of snapshots populated in the GRUB menu.)
* GRUB_BTRFS_SUBVOLUME_SORT="descending"
(Sort the found subvolumes by newest first ("descending") or oldest first ("ascending").
If "ascending" is chosen then the $GRUB_BTRFS_LIMIT oldest
subvolumes will populate the menu.)
* GRUB_BTRFS_SHOW_SNAPSHOTS_FOUND="true"
(Show snapshots found during run "grub-mkconfig")
* GRUB_BTRFS_SHOW_TOTAL_SNAPSHOTS_FOUND="true"
(Show Total of snapshots found during run "grub-mkconfig")
* GRUB_BTRFS_IGNORE_SPECIFIC_PATH=("var/lib/docker" "nosapshot")
(Ignore specific path during run "grub-mkconfig")
Generate grub.cfg (on Archlinux use grub-mkconfig -o /boot/grub/grub.cfg )
grub-btrfs automatically generates snapshots entries.
You will see it appear differents entries (e.g : Snapshot: [2014-02-12 11:24:37] my snapshot name overkill )
#### TO DO
* Display name of microcode in menuentry when available
* ignore specific path
## discussion
Pour les francophones : https://forums.archlinux.fr/viewtopic.php?f=18&t=17177