swap on a lv for hibernation

[David Abrahams]

David Abrahams <dave at boost-consulting.com> writes:

> Alexander Skwar <listen at alexander.skwar.name> writes:
>
>>> Do you know how to make sure that partition 
>>> actually gets used for swap space?
>>
>> cat /proc/swaps
>
> It's really strange for me; mine is empty.  I can do 
>
>   # mkswap /dev/mapper/vg_fast-swap
>   # swapon -av
>
> and then swap is back.  And it shows up in
>
>   # free
>
> but it won't get mounted at boot time, and I need to do a new mkswap
> before I can do swapon -av again.  Is there a fix for this, or is it
> just another way in which ubuntu is LVM-incompatible?

Correction: it works fine at first boot.  I only have this problem
when I reboot after hibernating.  Naturally, (at least if swsusp
suspends into the swap partition) that skewers things pretty badly ;-)

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com