I've been using LVM now since sometime this past summer and everything has worked great and as advertised, until I tried to unmount a logical volume. And this happens on both RedHat 9 and ES_3. I had occasion the other day to unmount one of the mounted raid arrays in order to upgrade some firmware. When I tried to do an unmount command, I got "device is busy". Ok, I'm cd'd there from one of my windows or something, so I make sure all open terminal windows are *not* cd'd there. Redo the umount command with same result. Weird, something's got a file open. So, I did an lsof command and grep for the device (/dev/VG1/LV1). Nothing. I try greping for the mount name (/scratch/cdf). Nothing. It will not let me unmount the logical volume. The system in question is running RedHat 9 w/kernel 2.4.20-24.9smp with RedHat's lvm-1.0.3-12. I just so happened to have built another system using RedHat's ES_3 w/kernel 2.4.21-4.0.1.ELsmp and their lvm-1.0.3-15, so I thought I'd try it there. Built an identical logical volume, mounted it, tested it (works fine), tried to umount the filesystem with identical results: device is busy. Checked again using lsof. Nothing open on the mounted filesystem. I went checking back thru about 4 months of this list and saw (apparently) that no one else has this problem. At this point I'm a bit baffled why the umount command isn't working. I've also seen nothing that might address this in the LVM-HOWTO. Then again, I could have missed it. Ideas? Thanks! -- P. Larry Nelson (217-244-9855) | Systems/Network Administrator 461 Loomis Lab | U of I, CITES Departmental Services 1110 W. Green St., Urbana, IL | Consultant to: High Energy Physics Group MailTo:lnelson@uiuc.edu | http://www.uiuc.edu/ph/www/lnelson ------------------------------------------------------------------------- "Information without accountability is just noise." - P.L. Nelson _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
