mirror of
https://github.com/ivuorinen/cheatsheet-tldr.git
synced 2026-02-03 03:43:15 +00:00
30 lines
916 B
Plaintext
30 lines
916 B
Plaintext
---
|
|
syntax: markdown
|
|
tags: [tldr, linux]
|
|
source: https://github.com/tldr-pages/tldr.git
|
|
---
|
|
# btrfs rescue
|
|
|
|
> Try to recover a damaged btrfs filesystem.
|
|
> More information: <https://btrfs.readthedocs.io/en/latest/btrfs-rescue.html>.
|
|
|
|
- Rebuild the filesystem metadata tree (very slow):
|
|
|
|
`sudo btrfs rescue chunk-recover {{path/to/partition}}`
|
|
|
|
- Fix device size alignment related problems (e.g. unable to mount the filesystem with super total bytes mismatch):
|
|
|
|
`sudo btrfs rescue fix-device-size {{path/to/partition}}`
|
|
|
|
- Recover a corrupted superblock from correct copies (recover the root of filesystem tree):
|
|
|
|
`sudo btrfs rescue super-recover {{path/to/partition}}`
|
|
|
|
- Recover from an interrupted transactions (fixes log replay problems):
|
|
|
|
`sudo btrfs rescue zero-log {{path/to/partition}}`
|
|
|
|
- Create a `/dev/btrfs-control` control device when `mknod` is not installed:
|
|
|
|
`sudo btrfs rescue create-control-device`
|