alonea@alonea-laptop:~$ mount
/dev/hdb2 on / type ext3 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
/sys on /sys type sysfs (rw,noexec,nosuid,nodev)
varrun on /var/run type tmpfs (rw,noexec,nosuid,nodev,mode=0755)
varlock on /var/lock type tmpfs (rw,noexec,nosuid,nodev,mode=1777)
procbususb on /proc/bus/usb type usbfs (rw)
udev on /dev type tmpfs (rw,mode=0755)
devshm on /dev/shm type tmpfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
lrm on /lib/modules/2.6.20-15-generic/volatile type tmpfs (rw)
/dev/hdb3 on /home type ext3 (rw)
/dev/disk/by-uuid/FA44C87B44C83C5F on /media/hda1 type fuseblk (rw,nosuid,nodev,noatime,allow_other,blksize=4096)
/home/alonea/10.4.6.install.dvd.iso on /home/alonea/mac type iso9660 (ro,loop=/dev/loop0)
/dev/sda1 on /home/alonea/mac type vfat (rw)
/dev/sdb1 on /home/alonea/mac type vfat (rw)
alonea@alonea-laptop:~$ sudo umount 10.4.6.install.dvd.iso
Password:
ioctl: LOOP_CLR_FD: Device or resource busy
alonea@alonea-laptop:~$