How do I reinitialise a device ?
This is a discussion about How do I reinitialise a device ? in the Linux Hardware category; I have a tape drive that I use for backups and occasionally it fails for various reasons. I kill the process but the device (/dev/st0) is still showing up as busy (mt status). The only way I have been able to get it back up and running is by rebooting the server.
I have a tape drive that I use for backups and occasionally it fails for various reasons. I kill the process but the device (/dev/st0) is still showing up as busy (mt status). The only way I have been able to get it back up and running is by rebooting the server. Is there a way to reinitialise the device so that a reboot is not required?
Thanks in advance.
Thanks in advance.
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Oct 23
Feb 5
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What is your current working directory ( $PWD) when trying to umount the drive? Because if your directory is under the mount point when you try to umount it won't work..
a bit of sh work should fix your dilemma:
as root, do
Code:
That should tell you the Process that still has the device open. If it iz zombie'd or won't die... a reboot is about the only thing you can do... Except editing memory space and hash tables manually....
But, I am guessing you are *NOT* a Expert UNIX GEEK like me with 15+ years of *NIX (DEC OSF/1, Tru64, HP-UX, Solaris, AIX, BSDi, *BSD, IRIX, SunOS, Linux... etc...) I'd be nervous doing that...
as root, do
Code:
lsof | grep -e "/dev/st0" | less
That should tell you the Process that still has the device open. If it iz zombie'd or won't die... a reboot is about the only thing you can do... Except editing memory space and hash tables manually....
But, I am guessing you are *NOT* a Expert UNIX GEEK like me with 15+ years of *NIX (DEC OSF/1, Tru64, HP-UX, Solaris, AIX, BSDi, *BSD, IRIX, SunOS, Linux... etc...) I'd be nervous doing that...
OP
Thanks for your comments
I am not competent enough to edit memory space or hash tables (at least at this point in time).
Looks like a reboot is the only solution for me for the time being.
I am not competent enough to edit memory space or hash tables (at least at this point in time).
Looks like a reboot is the only solution for me for the time being.
