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Old 09-28-2005, 04:31 AM   #1
Registered: Oct 2003
Location: Sweden
Distribution: Slackware64-current, SlackwareARM-current
Posts: 787

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Unhappy HELP!! File corruption using SWSUSP2

Hey all,

yesterday I went about to get hibernate, or suspend-to-disk (swsusp2) to work. Basically followed the Software Suspend HOWTO (

After successfully patching the kernel (, recompile with filewriter and swapwriter compiled in the kernel and editing the hibernate.conf I gave it a try by typing 'hibernate'. System hibernated but rebooted normal (i.e. without resuming). dmesg complained about not finding the resume2= in lilo.conf so I appended resume2=swap:/dev/hda6 and ran lilo. No problem so far. Reading about possible data loss I copied the init.d/ script to /etc/rc.d/rc.hibernate-cleanup (running Slackware-current) and added an entry in /etc/rc.d/rc.S to fire up that script during boot after the file systems are mounted but before swap is mounted.

Then I rebooted, and EVIL struck: immediately after the boot screen (with the manufacturer's brand logo) instead of seeing lilo's menu, I get a black screen with only LI in the left most corner, and there it hangs forever... aaaarrrggghhhhhhhh

I thought cleaning out swap would do the trick (suggested in the howto), so after booting knoppix cd I tried mkswap /dev/hda6 to no avail. Mounting /dev/hda7 (root) and running the hibernate-cleanup script to manually wipe out the swap also didn't help.

Reiserfsck /dev/hda7 (root partition) indicates loads of errors. Will fixing with fsck lead to data loss?

When I inspected lilo.conf, I found that the append="resume2=swap:/dev/hda6" entry was not there anymore.

PLEASE, anyone, what should I do to prevent further harm or data loss, or to further diagnose the exact problem?

Apologies for the long mail, but I am in despair to get my laptop running again without the necessity to reinstall Slack (that's the beauty of linux; never reinstall, it's always fixable.... isn't it?)

Cheers, Leon.
Old 09-28-2005, 07:25 AM   #2
Senior Member
Registered: Jul 2004
Location: France
Distribution: Arch Linux
Posts: 1,897

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My experience with swsusp is that it works well once correctly setup. Unfortunately, you're not the first one to screw things up while setting it up: I did too

When this happened to me, I went for the safest solution:
- Mount the hard disk read-only.
- Back up all that could be read on disk.
- Unmount and "repair" the filesystem.
- Mounted again, read-write this time.
- See if some more things can be saved.
- Reinstall Linux.

Old 09-28-2005, 07:33 AM   #3
Registered: Oct 2003
Location: Sweden
Distribution: Slackware64-current, SlackwareARM-current
Posts: 787

Original Poster
Rep: Reputation: 70
Yes, I have backups of the important stuff. After reinstalling lilo at MBR I could again boot up. But then the system prompted me to correct the filesystem with reiserfsck. Am now performing reiserfsck --rebuild-tree and see what that gives.

At the same time I am downloading Slackware-10.2 as I expect a complete reinstall.... Damn, what I love about Linux is that a reinstall isn't needed; everything can be fixed. This time I took things too far I'm afraid

Cheers, Leon.
Old 09-28-2005, 08:03 AM   #4
Registered: Oct 2003
Location: Sweden
Distribution: Slackware64-current, SlackwareARM-current
Posts: 787

Original Poster
Rep: Reputation: 70

I reinstalled lilo to MBR which allowed me to boot past the lilo boot menu. Then the boot process stopped at fsck to allow me to correct the file system. I ran reiserfsck, first with --fix-fixable, then with --rebuild-sb and finally went all the way with --rebuild-tree.

Then rebooted and all is well! Saw few messages about files that were damaged/lost but so far everything seems to be a ok!

Cheers, Leon.


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