Questions tagged [btrfs]
B-tree file system, next-generation Linux file system
314
questions
0
votes
0
answers
15
views
BTRFS Still showing errors after deleting files
BTRFS after running scrub gave the errors below.
I deleted the files under /xfs/backup_log/ which deleted all the debug.log files.
reran scrub and the errors were still there.
I then looked for the ...
- 1
0
votes
0
answers
10
views
How to make btrfs compression level setting propagate to files and folders
I have a btrfs filesystem I am using compression on. I want set the compression level on a folder:
btrfs property set -t <folder> compression zstd:8
Which correctly sets the type and level of ...
- 293
0
votes
0
answers
28
views
Save a btrfs disk after power failure?
I have a non-system 4TB Western Digital disk (WD4000F9YZ) with a sole btrfs partition that no longer shows up after a power failure.
I can see this in /var/syslog that it's struggling to do something ...
- 133
0
votes
0
answers
21
views
What's the meaning of the individual characters in the ACE "user:fakeusername:allow:rwxpdDaARWcCo:----"?
I have output like the following and would like to understand the meaning of the individual ACE characters after the basic permissions "rwx". Sadly, I couldn't find any docs about those. It ...
0
votes
0
answers
45
views
Using btrfs to share home across systems
I have several arch-based distros on a laptop, all having their root filesystem on a shared lvm-on-luks setup (one lvm volume each).
I'd like having a common /home partition for them all, but some ...
0
votes
0
answers
56
views
experiment with BTRFS RAID 1 (mirror) and recovery after disk failure
I am just trying learn more about Btrfs. I am using it years on sigle harddrives, sometimes for backups (rsync on external drive and then snapshot), it works fine. But I had some bad experience with ...
0
votes
0
answers
34
views
btrfs: Cannot repair "bad extent [range] type mismatch with chunk"
I currently cannot mount my btrfs parition, even using the tools in systemrescue https://www.system-rescue.org/System-tools/ (btrfs-core v6.6.3.)
The mount command fails with a generic error and dmesg ...
0
votes
0
answers
29
views
Migrating between BTRFS Profiles and mdadm RAID
I am planning to set up a home NAS. I plan to start it with two identical disks in something similar to RAID-1, but Iʼm thinking about how to make sure I leave my options open for growing it later.
...
- 1,634
1
vote
0
answers
66
views
Recover damaged & luks-encrypted BTRFS partition
Here's my problem:
I have a Virtual Machine that I had to reset because the UI became very buggy after I tried to mount a hot-pluggable virtual disk image to copy some files.
Well that was actually ...
4
votes
1
answer
409
views
Is there a way to move a LUKS-encrypted btrfs volume to the right?
I want to move a LUKS-encrypted btrfs volume to the right. GParted is telling me it knows how to move the LUKS layer to the right, but it doesn’t know how to move the btrfs layer to the right. Can I ...
- 1,337
0
votes
0
answers
60
views
Btrfs snapshots are empty
I am using btrbk to make snapshots of my @home subvolume, but the snapshots are empty, zero bytes.
I think I need to automount home, somehow.
I see in the Btrfs Assistant File Viewer that the root ...
- 246
0
votes
2
answers
71
views
How to keep files downloaded with qBittorrent defragmented on BtrFS?
Files downloaded over the BitTorrent protocol are naturally fragmented as they're downloaded from pieces in irregular order.
This reduces performance when reading such files on classical HDDs. How to ...
- 3,173
0
votes
1
answer
114
views
How to unmount /home on a BTRFS system?
In order to restore a BTRFS snapshot of /home, on NixOS, the Wiki says to first unmount /home.
"home must be unmounted for this operation"
https://nixos.wiki/wiki/Btrfs
So my question is how ...
- 246
0
votes
0
answers
266
views
Speed up btrfs check --init-extent-tree
I recently accidentally mounted a btrfs filesystem read-write without knowing a different kernel that also had it mounted read-write was hibernated. When I resumed the hibernated kernel, it mounted ...
- 137
2
votes
1
answer
678
views
How to mount BTRFS partition multiple times both using the same space allocation?
I’m new to BTRFS and am wondering if it’s possible to share the space of a single partition but mount it under multiple mount points?
For example, I have a 1 TiB partition and want to share the same ...
- 518