can't use swap after switch to LVM

[Gilboa Davara]

On Sun, 2006-04-09 at 16:47 +0200, Joel Uckelman wrote:
> I just switched my desktop FC5 system from using software RAID over regular
> partitions to using software RAID over LVM; everything works fine, except
> I can't enable my swap.
> 
> On boot, I get the following messages:
> 
>    device-mapper: device 9:1 too small for target
>    device-mapper: dm-linear: Device lookup failed
>    device-mapper: error adding target to table
>    .
>    .
>    .
>    Unable to find swap-space signature
> 
> My swap volume is listed like this in my /etc/fstab:
> 
>    /dev/VolGroup00/LogVol01 swap swap defaults 0 0
> 
> If I try to format the swap volume, it tells me that it's too small:
> 
>    # mkswap /dev/mapper/VolGroup00-LogVol01
>    mkswap: error: swap area needs to be at least 40kB
> 
> But 'lvm lvs' reports that's it's 1GB:
> 
>    LogVol01 VolGroup00 -wi-d-     1.00G
> 
> I've tried deleting and recreating the swap volume:
> 
>    # lvm lvremove VolGroup00/LogVol01
>    # lvm lvcreate -L 1024M -n LogVol01 VolGroup00
>    device-mapper: reload ioctl failed: Invalid argument
>    Failed to activate new LV.
> 
> What's going wrong here?
> 
> -- 

Did you mkswap it?

Gilboa