Patch-ID# 100211-02
Keywords: tape synchronization lost
Synopsis: SunOS 4.1, 4.1.1: tape synchronization lost when interrupted
Date:15/February/1991

SunOS release: 4.1 4.1.1

Topic: tape synchronization lost when interrupted

BugID's fixed with this patch:

Architectures for which this patch is available: sun3 sun4_490

Problem description:

When tape commands are interrupted the tape is supposed
rewind and resynchronize, however the commands get out
of sync and the drive does not respond to any further 
commands.

Fix description:

The fix includes patched version of:

               st.o

Install instructions:

as root install the appopriate sun3 or sun4_490 patches as follows:

      # mv /sys/sun{3,4}/OBJ.st,o /sys/sun{3,4}/OBJ/st.o.orig
      # cp sun{3,4}/{4.1, 4.1.1}st.o /sys/sun{3,4}/OBJ/st.o
      #  chmod 444 /sys/sun{3,4}/OBJ/st.o
 
Then a new kernel will need to be made and installed.
Please refer to the System and Networking Administration Manual
for installing a custom kernel.