Re: [CentOS] Resizing a Xen DomU disk image

On Dec 19, 2007 7:26 PM, Matthew Lind mlind@nhctc.edu wrote:

Hello Mailing List!

A quick question. Has anyone gotten a resize (in my case grown) a Xen DomU disk image?

Here is the procedure I have followed:

1. Install a DomU using virt-install Customize xvda to be all one partition ext3
2. On Dom0: dd if=/dev/zero bs=1G count=1 >> <my_disk_image> ll -h (Image is now 1GB larger) xm create <DomU> On DomU: df -h (Size has not changed) shutdown -h now On Dom0:

e2fsck works only on device, but yuo can creat a loop device using losetup

someting like

losetup -f <my_disk_image>

now you can mount, e2fsck or resize /dev/loop0

    e2fsck -f <my_disk_image> (Errors Bad Magic...)
    resize2fs -f <my_disk_image> (Errors Bad Magic...)

then delete the loop device

losetup -d /dev/loop0

regards

    xm create <DomU>
On DomU:
    df -h (Still reports old size)

I am assuming that because resize2fs didn't run that the DomU doesn't know about the additional space.

Thanks in advance! _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos