CCSD3ZF0000100000001NJPL3IF0PDS200000001 = SFDU_LABEL
RECORD_TYPE                    = STREAM
PRODUCT_CREATION_TIME          = 1993-08-12
OBJECT                         = TEXT
  NOTE                         = "Driver patch for SunOS."
END_OBJECT                     = TEXT
END
In order to access GIF files with "xv.su4" under sunos 4.1.2 or
sunos 4.1.3 , you need to patch the CD-ROM file system.

There are two known problems with the Sun's implementation of
ISO 9660 file system:

        (1) it does not handle Associated file correctly.
        (2) it will complain if the file type of a file is either
                ASSOCIATED or RECORD.

The following is the fix for sparcstations running SunOS 4.1.2 and 4.1.3 only.
There are two files: hsfsnode.4m is for sun4m architecture.
hsfsnode.4c is for sun4c architecture.  To find out which file
to use: type "arch -k".

To correct the problem, you need to do the followings:

        (0) login as root
        (1a) uudecode hsfsnode.4m for sun4m architecture
            -This will create a file called hsfs_node.o 
        (1b) uudecode hsfsnode.4c for sun4c architecture
            -This will create a file called hsfs_node.o
        (2a) for sparcstation using sun4c architecture (e.g. ss1 or ss2)
                cp /sys/sun4c/OBJ/hsfs_node.o /sys/sun4c/OBJ/hsfs_node.o.old
                cp hsfs_node.o /sys/sun4c/OBJ/hsfs_node.o
        (2b) for sun4m architecture (e.g. ss10)
                cp /sys/sun4m/OBJ/hsfs_node.o /sys/sun4m/OBJ/hsfs_node.o.old
                cp hsfs_node.o /sys/sun4m/OBJ/hsfs_node.o

        (3) Rebuild the kernel
                (a) cd /sys/sun4c/GENERIC or cd /sys/sun4m/GENERIC
                    make

                (b) if you don't have /sys/sun4c/GENERIC or
                        /sys/sun4m/GENERIC

                    cd /sys/sun4c/conf or cd /sys/sun4m/conf
                    /etc/config GENERIC
                    cd /sys/sun4c/GENERIC or cd /sys/sun4m/GENERIC
                    make
                 Note: you don't have to use GENERIC. You can use whatever
                    you used to build your own kernel.

        (4) save a version of the old kernel, and move
            the old kernel to a new place.

                cd /
                mv /vmunix /vmunix.old
                cp /sys/sun4c/GENERIC/vmunix /vmunix or
                cp /sys/sun4m/GENERIC/vmunix /vmunix

        (5) reboot the new kernel

                sync; sync; sync
                fastboot