Questions tagged [btrfs]
B-tree file system, next-generation Linux file system
313
questions
0
votes
0
answers
91
views
GlusterFS help on setting up or a alternative option
I currently have a mergerFS mount set up with 3 disks, but want to add a way for another server so i can use docker swarm and have both hosts with the same data and setup. All i could find was rsync ...
0
votes
0
answers
128
views
Unable to mount btrfs becuase of because of unmatched "fsid"
I ran btrfstune -u /dev/sdc and it failed, now I am not able to mount this disk.
Errors in dmesg are
[ 46.388877] BTRFS error (device sdc): dev_item UUID does not match metadata fsid: 35f9709d-b959-...
- 101
0
votes
1
answer
423
views
btrfs errors when running newer kernel
There is a strange btrfs related problem I'm facing on a server. When running a kernel version up to 4.9, everything works like a charm. If I upgrade to any version >= 4.19, everything breaks down. ...
- 697
0
votes
0
answers
67
views
Why has my LUKS volume started showing that it has an unexpected second partition?
I have 3 disks:
/dev/sdb is a 2TB HDD
/dev/sdc is a 1TB HDD
/dev/sdd is a 1TB HDD
I used cryptsetup to format these 3 drives with LUKS. I then created a BTRFS raid1 volume using the 3 devices.
As ...
- 1
0
votes
0
answers
186
views
BTRFS after multiple power outages bad checksum
After multiple power outages, btrfs have bad checksums, is it possible to recover it?
Outages were on Dell R740xd with PERC H730P Adapter looks like the cache was unwritten.
now trying to recover in ...
0
votes
0
answers
157
views
Btrfs local Snapshots vs Incremental remote Backup
In a NAS context, I'm wondering about the pros of btrfs local snapshots when incremental remote backup is made on a remote server.
I'm also wondering about the interest to have both snapshots and ...
- 161
0
votes
1
answer
84
views
Very uneven disk size in btrfs RAID-1
I want to grow my 6x 3TB RAID-1, and want to use the chance to start using bigger disk sizes. I know that I can use uneven disk sizes in btrfs arrays, and as long as the biggest disk isn't larger than ...
- 371
0
votes
0
answers
342
views
Unable to recover BTRFS partition, what to do?
Using btrfs check:
$ sudo btrfs check --progress /dev/nvme0n1p7
[sudo] password for repair:
Opening filesystem to check...
checksum verify failed on 24708644864 wanted 0x00000000 found 0xb6bde3e4
...
- 121
0
votes
0
answers
43
views
Can I recover a BTRFS RAID disk that was partly overwritten?
I've had a BTRFS RAID set consisting of three (dissimilar) disks for some time now, and it's worked fine.
Unfortunately, due to an unwise experiment on my part, a rogue Windows 7 install dvd added a ...
0
votes
0
answers
40
views
Would it be possible to remap the Delete key in Nautilus to a custom script instead of gio?
In Ubuntu 22.04 with GNOME 42.5, pressing the Delete key while in Nautilus runs gio trash. There has been a long-standing issue with the way gio handles Trash within subvolumes in the btrfs file ...
- 957
0
votes
1
answer
802
views
`cryptsetup open` fails with correct passphrase - "No key available with this passphrase."
I recently ran (essentially) rm -rf / --no-preserve-root on my LUKS encrypted BTRFS root filesystem. I'm trying to mount the drive from an endeavouros (arch) liveusb, without success.
I created a ...
1
vote
1
answer
487
views
Grant user access to create snapshots in btrfs
I am trying to allow my backup program to take a snapshot of my filesystem. The goal is to create a snapshot for the duration of the backup to ensure a consistent view then the snapshot can be deleted....
- 1,514
0
votes
1
answer
398
views
btrfs fi du: several sets of shared extents
I have a lot of files in various directories on a btrfs filesystem. They are all identical, and some may have been created using a "old-style" full copy, some are clones (cp --reflink). I ...
- 1,118
1
vote
0
answers
162
views
`btrfs subvolume delete X` gives `ERROR: Could not statfs: Value too large for defined data type`
I play with btrfs in my arm(hf) NAS.
I successfully created a subvolume but now I am trying to delete it and get a system call error.
Any workarounds or better packages?
To delete the subvolume.
To ...
- 207
1
vote
1
answer
219
views
BTRFS filesystem size is bigger than my HDD, but how?
I have a 18TB HDD. (MG09ACA18TE)
$ df -TH
Filesystem Type Size Used Avail Use% Mounted on
/dev/dm-7 btrfs 19T 13T 5,8T 69% /mnt/point
$ df -Th
Filesystem ...
- 153