I attempted to mount the different harddisk to the same logical filesystem (the other way is multiple logical filesystem to the same harddisk, or double mounting, which i don't see it as a problem, and it is allowed as well), but this is not logical==> mount /dev/sda2 /mnt/fdrive mount /dev/sdb2 /mnt/fdrive and both device will get mapped to the same logical filesystem (fdrive)......this is a bug? and subsequently the unmounting is in error as well: /root>df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda2 34718516 32869592 56876 100% / tmpfs 517464 0 517464 0% /dev/shm /dev/sda2 38448304 15090272 21404932 42% /mnt/fdrive /dev/sdb1 39381744 36759432 621820 99% /mnt/edrive /dev/sdb2 38448304 15090272 21404932 42% /mnt/fdrive /root>umount /dev/sda2 /root>df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda2 34718516 32869592 56876 100% / tmpfs 517464 0 517464 0% /dev/shm /dev/sda2 34718516 32869592 56876 100% /mnt/fdrive /dev/sdb1 39381744 36759432 621820 99% /mnt/edrive /root>umount /dev/sda2 /root>df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda2 34718516 32869592 56876 100% / tmpfs 517464 0 517464 0% /dev/shm /dev/sdb1 39381744 36759432 621820 99% /mnt/edrive Can someone clarify? -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ