Re: labeling a swap partition

I see that officially, e2label can not label a swap partition. So, I am confused by what I see in my fstab:

LABEL=SWAP-i2o/hda3     swap                    swap    defaults        0 0

I have an Adaptec 2010S ZCR card that likes to play with my mind, so I have found that using labels on my partitions lets me win the game with the ZCR card.

The above entry from the fstab is from a fresh install of FC3. If e2label doesn't label swap partitions, how did the above entry occur? And, how can I guarantee that my the swap I want used is the one that will be used?

See 'man mkswap'

I think I am missing something, I don't see anything about the above type of labels in the mkswap man page. I tried-changing LABEL=SWAP-i2o/hda3 to LABEL=SWAP-i2o/hdb3, and the subsequent swapon failed

[root@sm init.d]# /sbin/mkswap -c -v1 /dev/i2o/hdb3
Setting up swapspace version 1, size = 1612148 kB
...
[root@sm init.d]# /sbin/swapon -av
swapon on LABEL=SWAP-i2o/hdb3
swapon: cannot find the device for LABEL=SWAP-i2o/hdb3

Did I miss something in the man page?

mkswap -L enables you to label a swap partition with whatever
label you want. In your case its been labeled as SWAP-i2o/hda3
and presumably is physically on partition /dev/hda3.

You need to do:
/sbin/mkswap -c -v1 -L SWAP-i2o/hdb3 /dev/i2o/hdb3

to label your new swap partition,
then you need to edit /etc/fstab to include a line like:
LABEL=SWAP-i2o/hdb3     swap                    swap    defaults        0 0

then 'swapon -a' should grab them both.

Ah ha!

Thanks!
eric