Al Sparks wrote: > How do I go about troubeshooting this? I'm using RHEL 4 update 6. > > mount: /dev/sdb1 already mounted or /blah busy > > It's actually an iSCSI LUN (NetApp filer). I successfully configured (ext3) and mounted it, but when I rebooted, the /dev/sdb1 device/partition is seen by the kernel and it shows up with "fdisk -l". > > Nevertheless I get that error. I've tried "umount" and am informed that /blah isn't mounted. I've tried "lsof" and don't find a process that's attached to /blah. > > I also tried "fsck -t ext3 /dev/sdb1" which worked (so it detects the ext3 file system). > > Any other tools to check out? Do you have an entry for /dev/sdb1 in /etc/mtab ? If so, try manually removing that line and try the mount again. James Pearson