Surprise shutdown while shrinking ext4 partition

balast · 2016-07-22 15:06:51

TL;DR: I'm an idiot and tried to shrink a partition on battery, it failed and I don't know what to do.

I was shrinking my /home (420 GB, ext4) partition and battery in my laptop failed during that (yes, I'm idiot for messing with partitions on battery).

I replaced it and than (obviously) found the partition corrupted. I ran (now on AC) fsck but that failed on low memory.

I have most of the data backed up but I did this after 3 weeks without Internet connection (again, I'm an idiot). So I would lost work from those three weeks.

I dd'ed the partition to an external drive so I can start fresh if I fuck up (again) during recovery.

What should I do in order to recover as much data as possible (or any data at all…)?

Thanks in advance.

Awebb · 2016-07-22 18:51:54

I faintly remember an -S switch of mkfs.ext4.

R00KIE · 2016-07-22 20:36:39

I would recommend that you make an image of that disk before you proceed.

ewaller · 2016-07-22 23:22:31

R00KIE wrote:

I would recommend that you make an image of that disk before you proceed.

I think they said they did

R00KIE · 2016-07-23 00:31:32

ewaller wrote:

I think they said they did

You are right I guess my brain stopped after:

balast wrote:

I have most of the data backed up but I did this after 3 weeks without Internet connection

@balast
If the -S switch of mkfs.ext4 doesn't help you could try using testdisk and try to recover some of your files.

Arch Linux

#1 2016-07-22 15:06:51

Surprise shutdown while shrinking ext4 partition

#2 2016-07-22 18:51:54

Re: Surprise shutdown while shrinking ext4 partition

#3 2016-07-22 20:36:39

Re: Surprise shutdown while shrinking ext4 partition

#4 2016-07-22 23:22:31

Re: Surprise shutdown while shrinking ext4 partition

#5 2016-07-23 00:31:32

Re: Surprise shutdown while shrinking ext4 partition

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