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Tag: Ubuntu Linux (en)

Ubuntu is THE linux distribution many of us grew up with. Next to openSuSE it is THE number one beginners distribution to start with. While it is easy to use, it is still very full-featured, has tons of software and can be customised easily, even on the shell.

btrfs raid1 to combine two separate partitions

A btrfs raid1 means mirroring all data and meta data on file system level. If you ever found some of your data lost after a btrfs scrub, you might know this output:

scrub status for <UUID>
  scrub started at Thu Dec 25 15:19:22 2014 and was aborted after 89882 seconds
  total bytes scrubbed: 1.87TiB with 4 errors
  error details: csum=4
  corrected errors: 0, uncorrectable errors: 4, unverified errors: 0

If you happen to have free space on a spare disk left, you can circumvent these problems via a btrfs raid1 on filesystem level. The following article will help you migrate.