At Sun, 01 Aug 2010 19:10:47 -0400 CentOS mailing list centos@centos.org wrote:
Tom H wrote:
On Sun, Aug 1, 2010 at 1:28 PM, Edward Diener eldiener@tropicsoft.com wrote:
When I boot CentOS 5.5, I receive the message:
Unable to access resume device ( UUID = some UUID etc. )
How do I find out what actual device to which this UUID refers ? It does not appear to be a block device since it does not show when I try 'blkid'. To what does "resume device" refer ?
The boot succeeds but I would like to know what this messages means.
UUID?! "resume" must be set to that UUID in /init in your initrd. Updating/recreating your initrd should fix this problem.
How does one "update/recreate" the initrd image ?
mkinitrd -f /boot/initrd-`uname -r`.img `uname -r`
Why would initrd hard-code a partition UUID ? If the UUID changes, which it has in my case when I had to move and reformat the swap partition, then the initrd image is now wrong.
It might also depend on what you have for kernel command line parameters and/or what /etc/fstab looks like and/or what your hibernate/resume config looks like. I believe it is possible for these things to use more 'symbolic' things (like LABEL= for example [yes, mkswap can label a swap partition]).
mkinitrd looks in various places to figure out what the swap partition is 'called' and is probably falling back to the UUID as the fallback choice.
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