On 7/22/23 22:14, Carl Spitzer {L Juno} wrote:
IN OpenSuse 15.2 I need to umount the / partition but I am getting device busy errors which block umount.
Its Ext4 so I should be able to fsck this problem once unmounted. Then I can finish backing up the /home and proceed to upgrade to 15.5.
How do I correct this device busy problem?
The system crashed and shut off during a Firefox secession I think I had too many tabs open.
CWSIV
Hmmm, When you say "crashed", were you able to log out from your user-session, or did it take the system down? (that really shouldn't happen) The "device busy" means the system believes there are file open on / that prevent an unmount. (I"m not sure you can unmount / after boot except if you are dropped to a maintenance shell) If you have a login prompt, I'd login directly as root (or drop to maintenance mode). The root user has a 5% holdback on disk space that if FF we nuts and filled the drive in its crash - root may be able to login where a user couldn't. Barring that, I'd just boot from an install disk and use the recovery tools. fsck should be present on any of the install disks. After fsck, you can chroot the system and see if it thinks it is happy again before actually trying to boot it. (at least you can check for any errors, etc.) Any other error messages in any of the logs other than the "device busy" indication you get attempting to unmount /? (which again I don't think can do to a running system outside of booting from another disk or being in maintenance mode -- others will have to fill in here) -- David C. Rankin, J.D.,P.E.