What is the best way to save my linux (open media vault / debian) install from failing disk?

[jonossaseuraava@eliitin-some.fi]

What is the best way to save my linux (open media vault / debian) install from failing disk?

I have tried dd, but it fails with io error midway trough. Also the target disk is like 30gb smaller than source, cuz im a dingus.

Ive tried some custom OMV regen script but my inatall seems to be too cursed.

What tool should i use?

Yes i should have done this when the io issues first popped up. Yes, i should have backups

Boosts welcome

#askFedi #linux #techSupport #help

[mkj@social.mkj.earth]

@jonossaseuraava Would definitely second (third, fourth) ddrescue if the target disk wasn't smaller. That would be exactly the use case it's designed for.

Best you can do is probably copy all files to the new disk. Recreate partitions, mount as the same hierarchy under e.g. /mnt, then something like

# rsync -aAHXSv --exclude=/sys --exclude=/proc --exclude=/dev --exclude=/mnt /./ /mnt/./

You will need to reinstall the boot loader on the new disk for bootability.