On Sat, 29 Mar 1997, Syrus Nemat-Nasser wrote: > On Sat, 29 Mar 1997, David Puryear wrote: > > > I upgrade a lot of packages, don't know exactly which ones though, and now > > shutdown -h now and umount will not unmount /usr(aka /dev/hdb3). It gives me > > same error: > > umount: /dev/hdb3: device is busy > > > > Does anyone have any idea as to what is causing this? > > If you are in any of the mounted directories (including the top, e.g. > /mnt), then umount would give this message and refues to unmount the > device. > I don't know that this is strictly true. For instance, my fstab mounts /usr from a seperate device, and, I assume, unmounts it during shutdown. At the time of shutdown, all my users are logged in and sitting in their user accounts. Now, I know that shutdown kills all the users off before it does the unmounts, so by then they are not an issue. I assume all root processes are killed off by then as well. I had a problem recently of this type. I tried to unmount /cdrom and was told that /dev/scd0 was busy. After going to each account logged in and checking for processes using /cdrom, and finding none, I eventually logged out all users but root at VC1 and was still unable to unmount. Since I REALLY wanted the cd that was in the drive, I shut the drive off and then back on. This let the drive open it's door so I could retrieve the cd, but created problems for the system (i/o errors from df) until I rebooted. I have learned since that I could probably have 'rmmod'ed the driver and re-'insmod'ed it, but still have no idea why the system thought that the device was busy.
Waiting is, Dwarf -- _-_-_-_-_-_- _-_-_-_-_-_-_- aka Dale Scheetz Phone: 1 (904) 656-9769 Flexible Software 11000 McCrackin Road e-mail: [EMAIL PROTECTED] Tallahassee, FL 32308 _-_-_-_-_-_- If you don't see what you want, just ask _-_-_-_-_-_-_-