NAS540: No volume label after deletion of sysvol-1

[Mijzelf]

In the page I directed to is shown what you should do. Find out the device node of the filesystem, and unmount it:

Code: Select all

grep 2888f87b /proc/mounts
umount /i-data/2888f87b

Then run the tool on the device node:

Code: Select all

extundelete /dev/md5 --restore-all

I PM'ed you a download link to the executable (for Arm).

Is this tool able to recover also pathes and the original file names?

Don't know. I never used it. (I have backups. And I never trust a webinterface)

BTW, you posted screenshots of PuTTY. In PuTTY you can copy text to the clipboard by just selecting it with your mouse.

[masterflai]

Hello Mijzelf,
the disk we are talking about was my main installation disk for plugins in the nas.

All my plugins and installations are gone.

So first of all I installed your MetaRepository again.

Can you tell me how to install the file you have sent me?

[Mijzelf]

Can you tell me how to install the file you have sent me?

Just untar it and put it on the nas. If you put it in /bin or /sbin you can use it right away. In case of a non-standard place you should specify the path. E.g. /home/admin/extundelete ...

[masterflai]

I tried it in the meanwhile with kali and I got:

extundelete: Bad magic number in super-block when trying to open filesystem /dev/sdc3

Sorry, but I'm not a hero in linux. Untar . . . How to?

[Mijzelf]

Untar . . . How to?

Code: Select all

tar xf archive.tgz

Or just offer it to 7zip. That extracts 99% of all known archive formats, plus a handful of unknown ones.

extundelete: Bad magic number in super-block when trying to open filesystem /dev/sdc3

I can think of 2 reasons for this, but I don't know if either of them is true:

• You shouldn't use /dev/sdc3 but some /dev/md device.
• extundelete is not really ext4 'compatible'. ext4 partitions can be mounted as ext2 or ext3, but the ext2/3 driver needs a small modification, because ext4 uses a different magic number. I wonder if that is the same magic number extundelete is complaining about.

[masterflai]

Thanks Mijzelf, I couldn't restore the files I was looking for during the first tempt. Now I working on my restored backup files on a separate new hard disk.
The old disk will be analyzed by me when I got a little bit more time.

Thank you so much for your effort.