BTRFS, subvolumes and timeshift, snapshots, how to access without GUI.
TLDR:
Timeshift works fine (snapshots and restore from snapshots) with the btrfs option when I use the GUI, but if I can't access the GUI and need to fix my system/restore from command line how to I acess the timeshift folder with my snapshots? Background: I setup @ and @home on a laptop fedora installation as I wanted to use timeshift so as to benefit from snapshots. Timeshift says it saves snapshots to /timeshift-btrfs but when I $ls -la / I can't see this directory but it is in the subv list. I tried following https://fedoramagazine.org/working-w...fs-subvolumes/ but had issues with path names (think my luks encryption migth have complicated things). Am struggling to understand btrfs subvols. Any advice and noob friendly guides/tutorials/info refs would be greatly welcomed :) Further details: Fedora Linux 37 (KDE Plasma) x86_64 Kernel: 6.1.14-200.fc37.x86_64 DE: Plasma 5.27.2 Theme: [Plasma], Breeze [GTK2/3] $lsblk ``` NAME *****************************************MAJ:MIN RM **SIZE RO TYPE *MOUNTPOINTS sda ********************************************8:0 ***1 ****0B *0 disk ** sdb ********************************************8:16 **1 ****0B *0 disk ** zram0 ****************************************252:0 ***0 ****8G *0 disk *[SWAP] nvme1n1 **************************************259:0 ***0 953.9G *0 disk ** ├─nvme1n1p1 **********************************259:2 ***0 465.7G *0 part ** └─nvme1n1p2 **********************************259:3 ***0 488.2G *0 part ** nvme0n1 **************************************259:1 ***0 **1.8T *0 disk ** ├─nvme0n1p1 **********************************259:4 ***0 **600M *0 part */boot/efi ├─nvme0n1p2 **********************************259:5 ***0 ****1G *0 part */boot └─nvme0n1p3 **********************************259:6 ***0 **1.8T *0 part ** *└─luks-dfc17fbe-52ed-4a9b-bd3c-3c8f6937f0e9 253:0 ***0 **1.8T *0 crypt /home ************************************************************************/ ``` $ sudo btrfs subv list .The tutorials I've found and inside the software say that the path to backups is: /run/timeshift/backup/timeshift-btrfs or /timeshift However on my system it is: /run/timeshift/**xxx_random_number_here_xxx**/backup/timeshift-btrfs I noticed that the **xxx_random_number_here_xxx** changes each time timeshift is loaded and when timeshift is not running the folder completely disappears.The tutorials I've found and inside the software say that the path to backups is: /run/timeshift/backup/timeshift-btrfs or /timeshift However on my system it is: /run/timeshift/**xxx_random_number_here_xxx**/backup/timeshift-btrfs I noticed that the **xxx_random_number_here_xxx** changes each time timeshift is loaded and when timeshift is not running the folder completely disappears. ``` ID 256 gen 3544 top level 5 path @home ID 257 gen 2408 top level 5 path timeshift-btrfs/snapshots/2023-03-06_13-18-12/@ ID 259 gen 2771 top level 5 path timeshift-btrfs/snapshots/2023-03-06_13-03-03/@ ID 260 gen 2766 top level 5 path timeshift-btrfs/snapshots/2023-03-06_22-21-41/@ ID 261 gen 2774 top level 5 path timeshift-btrfs/snapshots/2023-03-06_22-25-03/@ ID 262 gen 3544 top level 5 path @ ``` /etc/fstab ``` UUID=9bbd4929-c483-4b94-9b9b-3eb437b4eb69 / **********************btrfs **subvol=@,compress=zstd:1,x-systemd.device- timeout=0 0 0 UUID=e5153368-03b4-4a38-abb1-2e9fThe tutorials I've found and inside the software say that the path to backups is: /run/timeshift/backup/timeshift-btrfs or /timeshift However on my system it is: /run/timeshift/**xxx_random_number_here_xxx**/backup/timeshift-btrfs I noticed that the **xxx_random_number_here_xxx** changes each time timeshift is loaded and when timeshift is not running the folder completely disappears.The tutorials I've found and inside the software say that the path to backups is: /run/timeshift/backup/timeshift-btrfs or /timeshift However on my system it is: /run/timeshift/**xxx_random_number_here_xxx**/backup/timeshift-btrfs I noticed that the **xxx_random_number_here_xxx** changes each time timeshift is loaded and when timeshift is not running the folder completely disappears.The tutorials I've found and inside the software say that the path to backups is: /run/timeshift/backup/timeshift-btrfs or /timeshift However on my system it is: /run/timeshift/**xxx_random_number_here_xxx**/backup/timeshift-btrfs I noticed that the **xxx_random_number_here_xxx** changes each time timeshift is loaded and when timeshift is not running the folder completely disappears.e912eaf5 /boot ******************ext4 ***defaults ****1 2 UUID=A7F8-FD21 ***************************/boot/efi **************vfat ***umask=0077,shortname=winnt 0 2 UUID=9bbd4929-c483-4b94-9b9b-3eb437b4eb69 /home ******************btrfs **subvol=@home,compress=zstd:1,x-systemd.dev ice-timeout=0 0 0 ``` UPDATE The online tutorials I've found and inside the software say that the path to backups is: /run/timeshift/backup/timeshift-btrfs or /timeshift Yet on my system it is: /run/timeshift/**xxx_random_number_here_xxx**/backup/timeshift-btrfs I noticed that the **xxx_random_number_here_xxx** changes each time timeshift is loaded and when timeshift is not running the folder completely disappears. Now unsure whether it's a timeshift thing or btrfs thing. |
From this link below, i believe you will need to mount the snapshot and recover from there.
https://archive.kernel.org/oldwiki/b...html#Snapshots Quote:
|
[QUOTE=JJJCR;6417392]From this link below, i believe you will need to mount the snapshot and recover from there.
The references are useful and informative. In the end I read some guides and documentation by Arch and OpenSUSE for setting up snapshots using "Snapper" (instead of Timeshift). I then came to learn, as you've rightly pointed out - the necessity of not only setting up btrfs subvolumes / and /home but also snapshot subvolumes /.snapshots and /home/.snapshots For anyone else who might be just getting started with btrfs and wanting to setup snapshots on Fedora 37, I recommend this website https://sysguides.com/ (there are also videos). The guide was easy to follow with adequate explanations for a newbie. Thanks again for the info, it's starting to make more sense now. |
All times are GMT -5. The time now is 04:41 PM. |