Hi, Kerim Gueney wrote on 2015-07-09 17:10:25 +0200 [Re: Create LVM Volume on Blockdevice]: > [...] > >Here is the main question, is it possible to create a pv directly on a > >block device without having a partition? > I am not entirely sure but I think that's possible, yes. I just ran > pvcreate /dev/sda in a test environment and created a VG and LV on top > of it just fine.
yes, manually, it definitely is possible. > [...] > it appears that everything you want is possible but setup-storage > doesn't support it, yet. I'll try and implement a solution for your > usecase in the upcoming days. I don't use setup-storage, but from what I've read on the list recently, one idea does spring to mind: Stefan Schörghofer wrote on 2015-07-07 15:18:35 +0200 [Create LVM Volume on Blockdevice]: > [...] > My current Diskconfig looks like this: > -------------------------------------------------- > # DATAVG > disk_config sdb disklabel:msdos > > disk_config lvm > vg datavg sdb > datavg-datalv /data 8G xfs rw > -------------------------------------------------- What happens if you leave out the "disklabel" part? My guess - from what I've read rather than actual experience - is that setup-storage would not create a partition table, and consequently pvcreate (or the kernel?) would not complain when trying to prepare /dev/sdb for LVM. In any case, the "disklabel:msdos" is wrong, strictly speaking, because you don't want an msdos partition table on /dev/sdb - you want an LVM PV there. Hope that helps. Regards, Holger
