Patch-ID# 100694-01
Keywords: sun3x, fd, mount, umount, panic, read_only, ro, r/o, floppy
Synopsis: SunOS 4.1;4.1.1: PANICS WHEN UMOUNTING A WRITE PROTECTED FLOPPY ON SUN3X
Date: Mar/10/93
 
SunOS release: 4.1, 4.1.1
 
Topic: sun3x fd driver failed to check for r/o media in fdopen()
 
BugId's fixed with this patch:  1089308

Architectures for which this patch is available: sun3x

Patches which may conflict with this patch:  

Note: 

Obsoleted by:

Problem Description: 
Floppy disk driver for sun3x (sundev) failed to check for r/o
media when write open was attempted.  This would allow a mount
w/o -r to succeed on write protected disk, and this could
cause a panic then the floppy is umounted or ejected.


INSTALL:

login as root

mv /sys/sun3x/OBJ/fd.o /sys/sun3x/OBJ/fd.o.fcs
cp sun3x/{4.1,4.1.1}/fd.o /sys/sun3x/OBJ/sf.o


You will then have to re-run config and make on your kernel.
Please refer to the System and Network administration manual
for information on building and installing a custom kernel.



Estimated Size of this patch: 46 KB