Replying to the daily digest, with my response at the bottom.
Message: 13 Date: Fri, 15 Jun 2012 12:22:08 -0700 From: Ray Van Dolson rayvd@bludgeon.org Subject: Re: [CentOS] Resizing est4 filesystem while mounted To: centos@centos.org Message-ID: 20120615192207.GA23689@bludgeon.org Content-Type: text/plain; charset=us-ascii
On Fri, Jun 15, 2012 at 12:10:09PM -0700, Jeff Boyce wrote:
Greetings -
I had a logical volume that was running out of space on a virtual machine. I successfully expanded the LV using lvextend, and lvdisplay shows that it has been expanded. Then I went to expand the filesystem to fill the new space (# resize2fs -p /dev/vde1) and I get the results that the filesystem is already xx blocks long, nothing to do. If I do a # df -h, I can see that the filesystem has not been extended. I could kick the users off the VM, reboot the VM using a GParted live CD and extend the filesystem that way, but I thought that it was possible to do this live and mounted? The RH docs say this is possible; the man page for resize2fs also says it is possible with ext4. What am I missing here? This is a Centos 6.2 VM with an ext4 filesystem. The logical volumes are setup on the host system which is also a Centos 6.2 system.
Try resize4fs (assuming your FS is ext4).
Ray
Well, I have never seen a reference to resize4fs before (and yes my FS is ext4). It is not on my Centos 6.2 system, and doing a little searching through repositories for that specifically, or e4fsprogs, and I can't find it anywhere to even try it. Any google reference seems to point back to resize2fs. I ended up booting a live SystemRescueCD and using GParted via the GUI. My notes indicate that is what I had done previously also. I am still stumped, everything that I have read indicates that resize2fs can do a live resizing on ext4 file systems. Can anybody confirm or deny this? Is the reason I can't do this because it is on an LVM logical volume? Thanks.
Jeff Boyce Meridian Environmental