[CentOS] not using LVM for Linux VM guests?

[James A. Peltier]

----- Original Message -----
| > I've tried that, it returns a warning about kernel unable to reread
| > partition table and requiring a reboot to see any modifications.
| > Then the next call to pvcreate fails as it can't find the partition.
| >
| > --Russell
| >
| >> -----Original Message-----
| >> From: centos-bounces at centos.org [mailto:centos-bounces at centos.org]
| >> On
| >> Behalf Of Barry Brimer
| >> Sent: Friday, 18 November 2011 11:13 a.m.
| >> To: CentOS mailing list
| >> Subject: Re: [CentOS] not using LVM for Linux VM guests?
| >>
| >> Quoting "Smithies, Russell" <Russell.Smithies at agresearch.co.nz>:
| >>
| >>> Perhaps I'm doing it wrong then.
| >>>
| >>> 1). In Vmware, extend the existing disk by changing the
| >>> provisioned
| >>> size in the vSphere client.
| >>> 2). In Centos, create an additional partition with fdisk, 3).
| >>> Somehow
| >>> reread the partition table without rebooting??
| >>> 4). pvcreate
| >>> 5). vgextend
| >>> 6). lvextend
| >>> 7). resize2fs
| >>>
| >>> What I find is that without a reboot, the OS doesn't see the
| >>> partition
| >>> so can't pvcreate etc.
| >>>
| >>> --Russell
| 
| I don't believe partprobe works when you change the partitiontable of
| the
| disk that the root filesystem is on. I could be remembering it wrong.
| 
| Barry

It does but it (the new size) is not recognized until you delete the partition, recreate it with the new size, then run partprobe again, then resize the file system.  It's worked for me in the past.

-- 
James A. Peltier
IT Services - Research Computing Group
Simon Fraser University - Burnaby Campus
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