Re: labeling swap partitions, a question
On 03/24/2011 10:49 AM, Paul E Condon wrote:
> I'm looking into using partition labels on my wheezy boxes. In the course
> of doing this, I notice that one can uses a partition label to specify
> which partition is to be used for swap in the swapon command and one can
> specify a label string to be written onto a partition in mkswap. But, I
> can't find a way to read/verify whether there is already a label on an
> existing swap partition. Is there a way to read? How?
grep swap /etc/fstab
LABEL=swap1 none swap sw,pri=1 0 0
LABEL=swap2 none swap sw,pri=1 0 0
Filename Type Size Used Priority
/dev/sda2 partition 979956 7004 1
/dev/sdb2 partition 979956 7000 1
/sbin/blkid -o value -s LABEL /dev/sd[ab]2
If you don't use a specific /dev/??? value, blkid will print all LABEL
values. If you want the UUID, use that in place of the LABEL argument
to the -s option.
You may need to be root to run swapon. You will need to be root to run
blkid as it needs to read disk devices.