On Sun, Aug 1, 2010 at 1:28 PM, Edward Diener <eldiener at 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.