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Recover files on RAID5 with Extundelete?
So I've done a lot of reading and know this is my fault! However I still think there is a chance I can recover some files, so just wanted to ask here as a last resort. I have a 4 disk (4TB x 4) s...
Ok thanks for this, are there any other options? I am currently looking at running photorec directly on that /dev/md127 device, but no option to look at a specific folder so its going to take some time!
sg86 wrote:
Also StephenB is it possible to safely unmount /dev/md127 so i can try and run btrfs on it?
Yes. One option is to reboot the NAS in tech support mode.
After that you log in with telnet, using root as the username and infr8ntdebug as the password.
After you are logged in, you'd enter
# rnutil chroot
which will both start RAID and chroot. But it will not mount the data volume.
Is it possible to do this via SSH, as obviously I'll need SSH access to run the btrfs restore utility.
I found a port about creating a ~/.tech-support file and rebooting, is that going to acheive the same purpose?
sg86 wrote:
Is it possible to do this via SSH, as obviously I'll need SSH access to run the btrfs restore utility.
What you need is access to the linux command line (CLI). It doesn't matter if you get that with SSH or telnet - it's the same CLI either way. The benefit of tech support mode is that it doesn't mount the data volume.
sg86 wrote:
I found a post about creating a ~/.tech-support file and rebooting, is that going to acheive the same purpose?
I haven't seen that post - maybe you could post a link to it? It's conceivable, but uncertain. So I'd suggest that using the boot menu.
BTW - can you confirm your model? Your initial post says RN212 - which definitely is wrong, because that only has two bays. My advice assumes that you have an OS-6 NAS (running 6.x firmware). But that was based on your model number - so we should sort that out before you go further.
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