combine filesystem for Sun Microsystems, Inc.
computers for creating bootable compact discs images.
program combines filesystem
partitions for Sun Microsystems, Inc. computers into an image suitable for
writing to a compact disc, that will allow the disc to be booted on the sun3,
sun3x, sun4, sun4c, sun4m and sun4u platforms. This hardware is supported by
the NetBSD sparc
ports. The architecture arguments above must be the bootable filesystem images
for the named architecture. filesystem
typically an iso9660 filesystem, see
for details, but can be any type as long as the first 512 bytes of the image
are not used. This image is modified, and the additional partitions added
after this partition, in order. If any architecture image is missing, that
partition is not used. If a disc with sun4 and sun4m support only was to be
created, a dummy image would need to be in place for sun4c.
If the same boot image maybe used for multiple architectures (as the
NetBSD/sparc ports for sun4, sun4c and sun4m allow), the same bootfile can be
listed multiple times on the command line. The
program will detect this and
only write one copy of the boot image.
For the UltraSPARC line of computers, the PROM decodes a file in the first
partition of the CD-ROM, which must be an ISO9660 file-system, called
. The format of this file is
an “m” followed by a partition number, starting at offset 0,
plus an architecture identifier, such as “sun4c” or
“sun4u”. The UltraSPARC uses the “sun4u” partition
as it's boot partition. An example file that would be compatible with older
hardware would look like:
m 1 sun4
m 2 sun4c
m 3 sun4m
m 4 sun4d
m 5 sun4u
As such, to enable UltraSPARC booting, such a file must be present on the image
adds bootable partitions
to the image.
The following options are available:
-c option sets cylinder size for
this cd to cylsz, which must be a
multiple of 4. The default cylinder size is 640.
-d option turns on debugging
-v option turns on verbose
program was written by
Ignatios Souvatzis <email@example.com>, with some help from Matthew Green
<firstname.lastname@example.org>, who also wrote this manual page.