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jonossa seuraava

@jonossaseuraava@eliitin-some.fi remote

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tech support request

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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

just cell

@cell@shitposter.world remote

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@jonossaseuraava > target disk is like 30gb smaller than source
if it weren’t for this limitation i would have suggested ddrescue

Phantasm

@phnt@fluffytail.org remote

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@cell @jonossaseuraava Clonezilla works in this case. You can create an image that is compressed and at maximum the size of used disk space. Only limitation is, on restoration the disk has the be at least the same size as the original.

https://clonezilla.org/

Phantasm

@phnt@fluffytail.org remote

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@cell @jonossaseuraava Oh also, for failing hard drives an advanced option called "rescue" has to be set, the "beginner" mode does not have it I think.

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jonossa seuraava

@jonossaseuraava@eliitin-some.fi remote

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@phnt
Too bad the target disk is smaller.

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Replying to @jonossaseuraava@eliitin-some.fi

Phantasm

@phnt@fluffytail.org remote

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@jonossaseuraava Then you would have to make the partition smaller prior to the backup with something like gparted, but that is risky on failing disks and might involve reading and writing large amounts of data to the disk.

Do you have some intermediary disk where you could do this after making a backup first and restoring it to the intermediary before going on the target?

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Phantasm

@phnt@fluffytail.org remote

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@jonossaseuraava
>Do you have some intermediary disk where you could do this after making a backup first and restoring it to the intermediary before going on the target?
You could technically do this in a VM since VM disks are usually only as big as the data used itself, but that is getting into voodoo territory.