Re: Hibernation woes

Pastor JW wrote:

swapon: cannot
canonicalize /dev/disk/by-uuid/52810d5c-61ab-4942-afa2-9e6e953f83
9d: No such file or directory
swapon: cannot stat
/dev/disk/by-uuid/52810d5c-61ab-4942-afa2-9e6e953f839d: No such file or
directory

OK. That simplifies things. What's probably happened is that you _have_ a
swap partition, but "mkswap" has been run on it since /etc/fstab was
created. Every time mkswap is run, like mkfs on a filesystem, the
partition gets a new UUID and it breaks fstab, which controls the mount
points. Now, putting the UUIDs in the fstab was a really good idea when
the kernel developers were changing the /dev/ names we usually use for
mounting, but it causes headaches now.

I am not all that comfortable with this system yet and don't know how one
would go about creating a swap partition on this Operating System.

First, look in /etc/fstab and you should see a line that says:
UUID=59722752810d5c-61ab-4942-afa2-9e6e953f839d none swap sw 0 0
(at least approximately). With luck, the previous line is a comment showing
what the real device name is (these got placed there in an earlier upgrade
process).

So then, you'd want to check that nothing else was actually mounting a file
system on that partition.

Do something like this (I'm not certain sfdisk is present by default, and of
course you need to use the correct name for your drive):

$ sudo sfdisk /dev/sda -l

Disk /dev/sda: 14593 cylinders, 255 heads, 63 sectors/track
Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0

Device Boot Start End #cyls #blocks Id System
/dev/sda1 * 0+ 2674 2675- 21486906 83 Linux
/dev/sda2 13542 14592 1051 8442157+ 7 HPFS/NTFS
/dev/sda3 0 - 0 0 0 Empty
/dev/sda4 2675 13541 10867 87289177+ 5 Extended
/dev/sda5 13168+ 13541 374- 3004123+ 82 Linux swap / Solaris
/dev/sda6 2675+ 2917 243- 1951834+ 83 Linux
/dev/sda7 2918+ 13167 10250- 82333093+ 8e Linux LVM

If you see something saying "Linux swap / Solaris", that's your swap
partition, if it matches the one in /etc/fstab, even better! In either
case, you can replace the UUID=59722752810d5c-61ab-4942-afa2-9e6e953f839d
part of the line in /etc/fstab with the /dev/ name, save fstab, then "sudo
swapon -a" should give you a swap partition.

Besides,
I have not found a backup system for this machine yet. Wouldn't creating
a swap mean I'd have to cut it out of an existing partition? I'd suspect
then the existing data is in danger of being damaged. This was a factory
install of 7.10 from directly from Dell and it has no foreign Operating
Systems on
it. It was upgraded to 8.04 on-line using update manager.

I'd be hugely surprised if it didn't have a swap partition when they created
it. If it doesn't, you should complain. Hopefully, as a pastor, you have
better complaint skills than I do, because I gave up on them when they
flatly refused to honor my warranty.
--
derek


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