I don't think i've asked much for help here, but this time it's serious enough (for me) to push myself asking for your assistance.
I messed up badly yesterday night as i was peacefully doing a Gentoo installation on my Pegasos. I made a typo mistake by making my swap partition as instead of mkswap /dev/hdc3 i typed mkswap /dev/hda3. The result is that i killed my MorphOS application partition (i hate myself and i want to die).

have u heard of any tool that i could use under morphOS or linux to recover it ? Of course i have no backup from this partition and all my software was on it. Reinstalling all of it and trying to fix the assigns would take me several days and such a waste of time.

thanks by advance.

Was it sfs partition? If yes then try http://home.elka.pw.edu.pl/~mszyprow/programy/sfsdoctor

Oh for this failure you deserve to die

[ Edited by ThePlayer on 2006/5/3 18:55 ]

Well, I'm not sure, but I think mkswap just writes a signature header at the start of the partition, so you may infact be in luck, and like marcik suggested SFSDoctor might help you...


- CISC

Linux-side one can use Mupper,
a recovery liveCD with morphos partitions support too.

thanks for your help and comments guys

@marcik

i tried a "find lost objects" and SFS doctor reported 56328 lost objects but nothing appears in the file list ??
the scandisk reported a blockid error

what shoudl i do there ? repair disk ? recover files ?

Hi SoundSquare,

I think its dead end.

If You are very lucky, You could eventually load the disc into scsiconfig in MorphOS, and manually type in start - end block, choose filesystem and other values exactly as it was before in MorphOS. If You are *very* lucky the partition might show up as a dos partition in MorphOS after saving the info to the drive. I dont think it will work though.

thanks gunne, i'll try that tonight and if that doesn't work i'll just restore a 6 month old backup i just found and upgrade every app in it again.

thanks to u all !

Nonono, mkswap does not change the RDB or in any other way change the partition layout...

It works with an already set up partition (in this case, his MorphOS one unfortunately), the question is just how much data it destroys at init (afaik, not much, so it's surprising SFSDoctor didn't recover anything), though he didn't say how far he booted Linux before he discovered his error .. if the swap was put to use it can have made considerable damage. :P


- CISC

CISC,

Well at least it changes the info about what fileformat is used for the partition.

Anyway, if SoundSquare do have a backup, the best is he takes use of that I guess. Backup is very good to have.

I'd try contacting SFSDoctor author before installing old backup (maybe there's some bug that caused problems with recovering yours partition?)

@CISC
i only made a mkswap but rebotoed before going further. I didn't make a "swapon" or anything else.

Quote:

No, it doesn't.


- CISC

CISC,

Hmm... ok.

I wont give up that easely !

If I have a partition created as linux swap, it will be recognized in Smart Firmware as Linux swap. If I then boot MorphOS and in scsiconfig change the partition to SFS, it will after saving and reboot be recognized as SFS in Smart Firmware. When booting MorphOS again, the partition will be ready to format as SFS, of course if I ticked it mount in scsiconfig.

If I have had a partition that I created as SFS in MorphOS and then use for storing of data, and I then later change that, by mistake, to Linux swap and wanted to try bring it back to SFS to try find the data, I would have done:

1: Boot MorphOS, start scsiconfig, change partition to SFS, tick it mount, save and reboot.

2: Then booted MorphOS again, and then eventually tried to repair the partition with SFSDoctor to see if its possible to find and get some data back.

Yeah, but SoundSquare never changed the filesystem to linux swap, he
only ran mkswap on the sfs partition. See the difference?

I'd also try asking the SFSdoctor author. I guess this tool is not so
well tested yet.

please don't get into a fight for me

i'll make all necessary tests tonight (i was too busy yesterday) and get back to you asap !

merko and CISC,

Yes, ok I see the difference.

Had to try. If issuing mkswap or mkfs on a SFS partition from Linux, it will still be recognized as a SFS partition in Smart Firmware and in MorphOS, but not in Linux.

SoundSquare,

No fight

This is really strange.
After 'Scan disk' on damaged partition the file list might be empty, but if you use 'Find lost objects' there must be at least 'lost+found' directory on file list.
I've sent you a PM with a link to debug version of SFSDoctor. I hope we will hunt this bug.