# Root partition with BtrFS crashed

**URL:** https://forums.suse.com/t/root-partition-with-btrfs-crashed/35181
**Category:** SLED Install-Boot
**Created:** [July 31, 2020, 6:19am UTC](https://forums.suse.com/t/root-partition-with-btrfs-crashed/35181 "2020-07-31T06:19:17Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![SHIH](https://avatars.discourse-cdn.com/v4/letter/s/4bbf92/32.png) [@SHIH](https://forums.suse.com/u/SHIH)
#### Post date: [July 31, 2020, 6:19am UTC](https://forums.suse.com/t/root-partition-with-btrfs-crashed/35181/1 "2020-07-31T06:19:17Z")

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I have a machine with SLED (15 SP1) installed. After an accidentally power outage, it’s no longer able to boot. Stuck in grub command line, the root ( / ) FS, which should be BtrFS, is missing.  
I’ve tried using SUSE bootable rescue CD for a detail look. Seems the FS is crashed.

- Can’t mount manually, already with “-o recovery, ro” … or other possible options. (wrong fs type, bad option, bad superblock, missing codepage …)
- “btrfs rescue zero-log” showed parent transid verify failed, couldn’t setup device tree, could not open ctree.
- “btrfs rescue super-recover” showed all super blocks are valid, no need for recover.
- “btrfs rescue chunk-recover” showed unable to recover some chunks, failed.
- “btrfs restore” showed superblock bytenr is larger than partition size.
- “btrfs check --repair” also showed parent transid verify failed, couldn’t setup device tree, could not open ctree. (It didn’t ask me for confirm repair action)

Any idea?

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### Author: ![malcolmlewis](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/malcolmlewis/32/11375_2.png) [@malcolmlewis](https://forums.suse.com/u/malcolmlewis)
#### Post date: [July 31, 2020, 2:07pm UTC](https://forums.suse.com/t/root-partition-with-btrfs-crashed/35181/2 "2020-07-31T14:07:16Z")

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Hi and welcome to the Forum 🙂  
Doesn’t sound good ☹ Is the storage media HDD, SSD, NVMe? Have a read here and see if the suggestions help: [https://btrfs.wiki.kernel.org/index.php/Btrfsck](https://btrfs.wiki.kernel.org/index.php/Btrfsck)

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### Author: ![SHIH](https://avatars.discourse-cdn.com/v4/letter/s/4bbf92/32.png) [@SHIH](https://forums.suse.com/u/SHIH)
#### Post date: [August 3, 2020, 1:07am UTC](https://forums.suse.com/t/root-partition-with-btrfs-crashed/35181/3 "2020-08-03T01:07:04Z")

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Thanks malcolmlewis,  
HDD with RAIS 5 (independent RAID card)  
And tried btrsfck (btrfs check), seems not work … ☹