On 2021/2/4 下午7:02, mig...@rozsas.eng.br wrote:
Hi there,
I am using opensuse tumbleweed on a desktop.
More than 1 year ago, I setup a rotating disk to use btrfs and things
went nice until yesterday.
I was done with Civ VI on steam, and decided to remove the associated files.
I've started to remove files and I got the message the file system is read-only.
kimera:~ # findmnt --real -l | grep /mnt/btrfs
/mnt/btrfs/dev/sdc2 btrfs
rw,relatime,space_cache,subvolid=5,subvol=/
kimera:~ # cd /mnt/btrfs/miguel/Steam/
kimera:/mnt/btrfs/miguel/Steam # \ls
GameOverlayRenderer64.dllbin_steamdeps.py
fossilize_engine_filters.json linux64 servers
steam_subscriber_agreement.txt tenfoot
ThirdPartyLegalNotices.css bootstrap.tar.xz friends
logs skinssteamapps
ubuntu12_32
ThirdPartyLegalNotices.doc clientui graphics
music ssfn9115004176610272489 steamchina
ubuntu12_64
ThirdPartyLegalNotices.html config
installscriptevalutor_log.txt package steam
steamclient.dll update_hosts_cached.vdf
appcache controller_base legacycompat
publicsteam.sh steamclient64.dll
userdata
bin depotcachelinux32
resource steam_msg.sh steamui
kimera:/mnt/btrfs/miguel/Steam #
kimera:/mnt/btrfs/miguel/Steam # rm -rf appcache bin clientui controller_base
rm: cannot remove
'appcache/httpcache/00/00d317630ee7d0825dc6a4cd5ce9f91f50e6993c_da39a3ee5e6b4b0d3255bfef95601890afd80709':
Read-only file system
rm: cannot remove
'appcache/httpcache/01/01edefade28afe779bad14a9d5ff954b0f4c4e60_da39a3ee5e6b4b0d3255bfef95601890afd80709':
Read-only file system
rm: cannot remove
'appcache/httpcache/01/0116c6a41aee246e028415352052bd79d323fc1f_da39a3ee5e6b4b0d3255bfef95601890afd80709':
Read-only file system
...
rm: cannot remove 'controller_base/bigpicture_mouseon.vdf': Read-only
file system
rm: cannot remove 'controller_base/gamepad_generic.vdf': Read-only file system
rm: cannot remove 'controller_base/basicui_gamepad.vdf': Read-only file system
rm: cannot remove 'controller_base/basicui_neptune.vdf': Read-only file system
rm: cannot remove 'controller_base/basicui.vdf': Read-only file system
kimera:/mnt/btrfs/miguel/Steam #
The associated kernel messages can be read here: https://susepaste.org/80272017
Nothing useful here from that dmesg. It's just booting and no btrfs
specific thing.
The current usage is:
kimera:~ # btrfs filesystem usage -T /mnt/btrfs
Overall:
Device size: 2.37TiB
Device allocated:348.06GiB
Device unallocated:2.03TiB
Device missing: 0.00B
Used:287.07GiB
Free (estimated): 2.09TiB (min: 1.08TiB)
Data ratio: 1.00
Metadata ratio: 2.00
Global reserve: 349.28MiB (used: 0.00B)
Multiple profiles: no
Data Metadata System
Id Path singleRAID1 RAID1Unallocated
-- - - - ---
1 /dev/sdc2 346.00GiB 1.00GiB 32.00MiB 1.16TiB
2 /dev/sdc1 - 1.00GiB 32.00MiB 898.97GiB
-- - - - ---
Total 346.00GiB 1.00GiB 32.00MiB 2.03TiB
Used 286.15GiB 470.45MiB 64.00KiB
kimera:~ #
Then I ran btrfs scrub (btrfs scrub start /mnt/btrfs) and got the
following kernel messages during the scrub:
https://susepaste.org/51166386
This is the real thing. You have a lot of metadata corrupted:
Feb 02 13:43:51 kimera.rozsas.eng.br kernel: BTRFS warning (device
sdc2): checksum/header error at logical 557849608192 on dev /dev/sdc1,
physical 514686976: metadata leaf (level 0) in tree 7
This means your csum tree is corrupted.
Feb 02 13:46:11 kimera.rozsas.eng.br kernel: BTRFS error (device sdc2):
parent transid verify failed on 557851131904 wanted 86067 found 76934
This means some of your metadata write didn't reach disk, and metadata
COW is broken, causing metadata corruption.
I'd recommend to just mount RO and copy as many data as you can.
Thanks,
Qu
And scrub ended with the status:
kimera:/mnt/btrfs/miguel/Steam # btrfs scrub status /mnt/btrfs
UUID: af3bd7fe-5796-4248-9917-3e71a5a56ec6
Scrub started:Tue Feb 2 13:43:34 2021
Status: aborted
Duration: 0:02:37
Total to scrub: 287.07GiB
Rate: 106.22MiB/s
Error summary:verify=79 csum=5
Corrected: 7
Uncorrectable: 77
Unverified: 0
So, what is going here ?
How can I fix this FS ?
Sorry to not know so much about how to fix a btrfs, it is my first
experience with btrfs since I migrated from Ubuntu to openSuSE more
than 1 year ago.
my system:
Operating System: openSUSE Tumbleweed 20210121
KDE Plasma Version: 5.20.5
KDE Frameworks Version: 5.78.0
Q
