Update ended in readonly filesystem

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Some notes:

  1. This is an encrypted system
  2. This is seems to be an RAID (software or hardware)
  3. Your btrfs-filesystem is not full
  4. Your efi-filesystem is not full

Some conclusions:

  1. I have no experience with encrypted systems. (so I’m out) :man_shrugging:
  2. You should explain the type of RAID you are using to the person who will help you (just so nothing goes wrong)
  3. If btrfs is readonly, there is an associated error message in the log files. That would certainly be helpful in finding the cause.
  4. If only the EFI file system was readonly, this would be a minor problem.
  • Because of the encryption, I wouldn’t reboot until you have fixed the error.
  • And I wouldn’t try to fix the error if you don’t have a backup of your data.

You find good Information about Btrfs in the wiki

and in