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Disk-Management: added errorhandling for 'unable to open read-only file system'

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I recently run into this errorcode on my server.
With the given explanation it was possible to resolve the error.
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TiynGER 2020-10-26 00:20:22 +01:00
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wiki/disk-management.md
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@ -16,4 +16,16 @@ In the following it is assumed that the partition to enlarge is `/dev/sda2`
Now you need to resize the filesystem with `resize2fs /dev/sda2`.
## Error solving
### sudo: unable to open ... Read-only file system
source: [https://askubuntu.com/questions/197459/how-to-fix-sudo-unable-to-open-read-only-file-system]
Ususally the filesystem will go into read-only mode whe the system is running and there is a consistency error.
To fix it run:
- `sudo fsck -Af -M` - check all filesystems
If `fsck` gets stuck after its version banner:
`fsck from util-linux 2.20.1`
you may want to try using the ext4-specific fsck:
- `fsck.ext4 -f /dev/sda1`