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Date: Fri, 29 Aug 1997 02:27:16 -0500 (CDT)
From: Zach Heilig <zach@gaffaneys.com>
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Subject: kern/4413: No way to unmount a floppy that goes bad while mounted.
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>Number:         4413
>Category:       kern
>Synopsis:       No way to unmount a floppy that goes bad while mounted.
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Aug 29 00:30:01 PDT 1997
>Last-Modified:
>Originator:     Zach Heilig
>Organization:
>Release:        FreeBSD 2.2-STABLE i386
>Environment:

	

>Description:

I had a bsd formatted floppy mounted in /fd0 that went bad while it was in the
drive.  When I went to unmount it, I got these errors on the console:

$ umount /dev/fd0
fd0c: hard error reading fsbn 56 of 56-63 (ST0 44<abnrml,top_head> ST1 
      4<sec_not_fnd> ST2 10<wrong_cyl> cyl 1 hd 1 sec 3)
fd0c: hard error reading fsbn 56 of 56-63 (ST0 44<abnrml,top_head> ST1
      4<sec_not_fnd> ST2 10<wrong_cyl> cyl 1 hd 1 sec 3)
umount: /dev/fd0: Invalid argument
$ mount
/dev/sd0a on / (asynchronous, local)
/dev/sd0s1f on /usr (asynchronous, local, nodev)
/dev/sd1s1e on /home (asynchronous, local, nodev, nosuid)
/dev/sd0s1e on /var (asynchronous, local, nodev, nosuid)
procfs on /proc (local)
/dev/fd0 on /fd0 (asynchronous, local)

	

>How-To-Repeat:

I guess you would just have to wait for a floppy to go bad while it is
mounted.
	

>Fix:

I umounted it by puting a different write-protected floppy in the drive
and running umount.

	

>Audit-Trail:
>Unformatted: