LVM partition as kvm guest disk: How to format?

[1clue]

Hi,

I have an lvm volume /dev/hddvg1/guest1_vda which will be used as a kvm guest disk. Meaning it has partitions made by gdisk.

I can't figure out how to format /dev/hddvg1/guest1_vda1 and _vda2 from the host. The host does not see individual partitions created on the LVM "disk."

Can anyone give a hint? All I get from google is how to format an lvm as a partition, not as a disk.

Thanks.

[irafiral]

I have never done this, but I guess you can use a loop device.

losetup -f --show /dev/hddvg1/guest1_vda

mkfs /dev/loop???

[frostschutz]

You could use `losetup --find --show --partscan` or `kpartx` (multipath-tools) to make partitions available to the host.

[1clue]

Did all that from both of you, and it worked.

Thanks.