Am 09.05.2015 um 23:19 schrieb Paul R. Ganci <ga...@nurdog.com>: > On 05/08/2015 11:41 PM, James Hogarth wrote: >> was wondering if this procedure might work to do what I desire: >> >> 1.) Shutdown the VMs >> 2.) Archive the VM image directory /home/vmimages to a network drive >> 3.) Use parted or fdisk to delete present /home partition >> 4.) Use parted or fdisk to re-create smaller/home partition and new vm-images >> 5.) Create XFS file system on /home and /vm-images >> 6.) Extact VM image directory archive into /vm-images >> 7.) Use virt-manager to change default location of images to /vm-images >> >> Is there any chance that after all this the VMs would actually start up >> again especially after a re-boot? >> >>> They are just disk images so as long as you don't mind deleting home then >>> this will work. > So it turns out this was even easier than I expected. The home partition was > actually built upon LVM so some relatively simple use of LVM allowed me to do > exactly what I wanted. However I have some very subtle issue that I don't > understand. virt-manager, df and du incorrectly think this: > >> df > Filesystem 1K-blocks Used Available Use% > Mounted on > /dev/mapper/centos_mric--srv2-root 52403200 5717192 46686008 11% / > devtmpfs 16378220 0 16378220 0% > /dev > tmpfs 16388924 88 16388836 1% > /dev/shm > tmpfs 16388924 9224 16379700 1% > /run > tmpfs 16388924 0 16388924 0% > /sys/fs/cgroup > /dev/mapper/centos_mric--srv2-home 433378560 32928 433345632 1% > /home > /dev/sda1 508588 219764 288824 44% > /boot > /dev/mapper/centos_mric--srv2-vm--images 67858700 16294864 51563836 25% > /vm-images > >> du -k /vm-images > 16261904 /vm-images > > But ls has it correct: > >> ls -alt /vm-images > total 16261908 > -rw-------. 1 qemu qemu 51547734016 May 9 15:15 centos7.0-1.qcow2 > -rw-------. 1 qemu qemu 12887130112 May 9 15:15 centos7.0.qcow2 > drwxr-xr-x. 21 root root 4096 May 9 15:13 .. > drwxr-xr-x. 2 root root 52 May 9 13:39 . > > Any idea how I make this correct? > > There are no side effects that I see but it is extremely puzzling to me as to > why the new partition does not have the correct size. It appears the larger > of the two VM images is not getting counted.
modern filesystems and image formats do not allocate the whole space if not neccessary (qcow2 feature). -- LF _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
