At Thu, 17 Feb 2011 10:06:10 -0500 CentOS mailing list <centos at centos.org> wrote: > > On Thu, Feb 17, 2011 at 8:36 AM, dixan rodriges <dixan23 at gmail.com> wrote: > > Dear All, > > > > > > > > I have created 252 loop devices in my system and i mounted few iso filses > > into loop devices .when i rebooting the system error showing "faild to > > umount " > > > > > > how can forcefully umount the loop device > > Not specific to loopback devices, but in some cases I use fuser to > kill all procs associated with a mount... You may also need to remount > it as read-only before unmounting and maybe use the -nr option to > umount. Note: ISO9660 file systems (CD/DVD images) can only be mounted read-only. If the OP is mounting CD/DVD ROM image ISO files, they already will be mounted read-only. > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > > -- Robert Heller -- 978-544-6933 / heller at deepsoft.com Deepwoods Software -- http://www.deepsoft.com/ () ascii ribbon campaign -- against html e-mail /\ www.asciiribbon.org -- against proprietary attachments