On 02/03/2015 08:11 PM, Chuck Anderson wrote:
All the bits are there to be able to online resize a live KVM guest [1] [2] [3] [4], except for one piece. You can't resize the root partition table entry without rebooting so the kernel picks up the new partition size. By using LVM on a partition table, you can kinda hack around this by using --setphysicalvolumesize to the pvresize command so it ignores the old partition size that the kernel tells it, but this is error prone. All this could be solved by getting rid of the partition table completely. If only Anaconda supported installing this way: clearpart --all --initlabel volgroup vg00 --pesize=32768 sda logvol / --fstype ext4 --name=root --vgname=vg00 --size=1024 --grow Is there anyone working on support this feature?
This is not in our current plans, but all you have to do is pvcreate and vgcreate in %pre and omit the disk(s) from clearpart. Since you want whole-disk PVs I'm assuming you don't have a deep stack on the disk initially. If you do, I suggest you make an effort to really clear all the metadata instead of dd to the first block or similar weak methods.
David
[1] http://unix-heaven.org/node/84 [2] http://unix-heaven.org/node/85 [3] http://eioki.eu/2013/07/02/live-resize-libvirt-disk-lvm-multipath [4] http://serverfault.com/questions/604876/online-resizing-of-kvm-guest-root-filesystem _______________________________________________ Anaconda-devel-list mailing list Anaconda-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/anaconda-devel-list
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