Thanks Stuart. That's what I did finally. Logged in as root in the console (in fact I booted into recovery mode from GRUB in order to do this). Also, to ensure that the underlying file system is also resized accordingly, I used the -r option. lvresize -r -L-20G vgme/lvhome lvresize -r -L+20G vgme/lvroot That did the trick. Thanks. <div class="gmail_quote">On Tue, Jan 17, 2012 at 11:45 PM, Stuart D. Gathman <<a href="mailto:stuart@bmsi.com">stuart@bmsi.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">Long ago, Nostradamus foresaw that on Jan 16, Kiran Rao would write: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Now, I tried the GUI (system-config-lvm) tool to do this. I can click on lvhome and try to resize it. However, the problem is that since I am logged in as a non-root user, the /home is mounted. Resizing requires one to unmount it, but the unmount operation fails since I am mounted. How do I work around this? </blockquote> </div> Log out of GUI Switch to text console (on linux try Ctrl-Alt-F3 for vt3) Login as root Unmount /home resize2fs <device-for-home> # WARNING! Make sure lvresize size is >= resize2fs size. If you aren't # sure about the units, make lvresize larger than you think you made # the filesystem. You can always expand the filesystems again, but # you can't undo shrinking the LV too far. lvresize <device-for-home> mount /home -- Stuart D. Gathman <<a href="mailto:stuart@bmsi.com" target="_blank">stuart@bmsi.com</a>> Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154 "Confutatis maledictis, flammis acribus addictis" - background song for a Microsoft sponsored "Where do you want to go from here?" commercial. _______________________________________________ linux-lvm mailing list <a href="mailto:linux-lvm@redhat.com" target="_blank">linux-lvm@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/linux-lvm" target="_blank">https://www.redhat.com/mailman/listinfo/linux-lvm</a> read the LVM HOW-TO at <a href="http://tldp.org/HOWTO/LVM-HOWTO/" target="_blank">http://tldp.org/HOWTO/LVM-HOWTO/</a> </blockquote></div>