How to reassign "hibernate/restore/resume" partition on F9?

[Kevin J. Cummings]

David wrote:
> I probably just need to edit one character in a config file somewhere
> .. but where ?
> 	
> PROBLEM SUMMARY
> 
> Recently I upgraded the boot hard drive on this F9 box from 20GB to
> 250GB. In the process, I intentionally
> reversed the swap and root partition numbers.
> 
> Old system: swap=sda6, root=sda5
> New system: swapA=sda5, rootA=sda6
> 
> I've edited grub.conf and /etc/fstab in an attempt to accomodate this
> change. However there is something I have missed, because
> hibernate/restore fails and breaks swap (unless I workaround with a
> "resume" kernel boot parameter).
> 
> PROBLEM SYMPTOMS
> 
> (1) Kernel boot message "Trying to resume from /dev/sda6".
> 
> This is wrong, it should be sda5.

Have you looked at your /etc/grub.conf file for resume= parameters to 
the kernels?

> (2) The swap partition is correctly detected.
> 
> # cat /proc/swaps
> Filename				Type		Size	Used	Priority
> /dev/sda5                               partition	4200956	0	-1
> 
> (3) Hibernation (from gnome menu) fails to restore. A failed restore
> leaves "cat /proc/swaps" blank even after reboot, requiring I recreate
> swapA=sda5 with mkswap and swapon. Also I have experienced one
> possibly related instance of rootA=sda6 filesystem corruption
> requiring fsck repair with many errors corrected.
> 
> CURRENT WORKAROUND
> 
> If I add "resume=/dev/sda5" to my kernel boot command in grub.conf
> then hibernation is ok.
> 
> kernel /vmlinuz-2.6.25-14.fc9.i686 resume=/dev/sda5 ro 5 root=LABEL=rootA
> 
> ADDITIONAL DETAILS
> 
> The old system was working fine with root=sda5 and swap=sda6. But I
> changed this on the new drive because I have space for alternative
> root partitions for experimentation. For an orderly layout I decided
> to have the swap partition at sda5, followed by 4 alternative root
> partitions. The first (sda6) labelled rootA, holds all files copied
> (rescue mode, unmounted) from the old root partition. The old drive is
> now removed from the system.
> 
> The new swap partition is 4301789184 bytes and is created with
> # /sbin/mkswap -L swapA /dev/sda5
> 
> The relevant lines (without tab chars) in the new /etc/fstab are
> LABEL=rootA / ext3 defaults 1 1
> LABEL=swapA swap swap defaults 0 0
> 
> REQUEST FOR HELP
> 
> With the workaround I can make the symptoms go away, but I would like
> to better understand the heart of the problem, because the resume
> kernel parameter is not needed ordinarily. I imagine that initial F9
> install created a configuration setting somewhere, that I need to
> change. Obviously just changing fstab is not enough.
> 
> Not knowing enough about either kernel or pm-utils I am unsure where
> to look for the origin of the kernel boot message. I did look at all
> files listed by "rpm -ql pm-utils" but saw nothing that helped. Re
> that I tried grep -r "Trying to resume" under /usr/lib/pm-utils
> without success. And I had no luck on the net, due to too many
> unrelated hits. So any assistance or kicks in the right direction will
> be appreciated, thanks.
> 
> David
> 


-- 
Kevin J. Cummings
kjchome at rcn.com
cummings at kjchome.homeip.net
cummings at kjc386.framingham.ma.us
Registered Linux User #1232 (http://counter.li.org)