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Everything has gone wrong and you have to reinstall from scratch. It shouldn’t happen but it may if you do something silly – I once acccidentally deleted /etc! But you have all sorts of stuff in $HOME that you don’t want to lose. Can you preserve it?
Well, of course, you should have a backup. I save one nightly on Tarsnap. But it may take a long time to restore from backup and it would be better if you didn’t have to.
Fortunately you can save your $HOME quite easily. Here’s how.
- When the Install process asks you to use disklabel, choose either OpenBSD or Whole Disk.
2. See which partition contains /home. Suppose it is ‘k’. Type ‘m -k’ (without the quotes). Choose ‘No mount point’.
Complete the Install process. When the system restarts, edit /etc/fstab to mount the ‘k’ partition as /home.
It should work – it has worked for me. But if at all possible make a backup first, just in case it doesn’t.