boot floppy Post: 25193

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Top Forums UNIX for Advanced & Expert Users boot floppy Post 25193 by RTM on Thursday 25th of July 2002 10:00:26 PM

07-25-2002

Registered User

This is the procedure for creating a bootable floppy:

Procedure for creating a bootable SunOS floppy diskette.

1. Insert floppy in Diskette Drive.
2. newfs /dev/rfd0c
3. mount /dev/fd0 /mnt
4. cp /usr/mdec/bootfd /mnt/bootfd
5. cp /usr/kvm/stand/boot.sun4c /mnt/boot
6. /usr/mdec/installboot /mnt/boot bootfd /dev/rfd0c
7. Copy your vmunix kernel to the floppy.

Note: There will only be ~950K remaining so the vmunix
will have to be very small.

Here is a sample installation session:

# newfs /dev/rfd0c
/dev/rfd0c: 2880 sectors in 80cylinders of 2 tracks,
18 sectors
1.5MB in 5 cyl groups (16 c/g, 0.29MB/g, 128 i/g)
super-block backups (for fsck -b #) at:
32, 640, 1184, 1792, 2336,

# mount /dev/fd0 /mnt

# cp /usr/mdec/bootfd /mnt

# cp /usr/kvm/stand/boot.sun4c /mnt/boot

# installboot -v /mnt/boot bootfd /dev/rfd0c
Primary boot: bootfd
Secondary boot: /mnt/boot
Boot device: /dev/rfd0c
Bootblock will contain a.out header
Boot size: 0x1af40
Boot checksum: 0xf22db98e
Boot block installed

# ls /mnt
boot bootfd lost+found

I doubt if you could put all this into some file, ftp it to the p.c., and then put it on the floppy. The problem I see is the newfs command and the installboot command. How to create the floppy
with this... And then how to use it even if you did create it since the SUN system does not have a floppy.

RTM

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LEARN ABOUT DEBIAN

bootcdflopcp

BOOTCD(1)							   bootcd utils 							 BOOTCD(1)

NAME

       bootcdflopcp - copy changes made after booting from bootcd to floppy

SYNOPSIS

       bootcdflopcp [-v] [-d <device>]

DESCRIPTION

       bootcdflopcp  will  copy changes made in ram to the floppy disk.  bootcdflopcp will be available as soon as your system is running from cd.
       The floppy has to have a filesystem already. (See mke2fs or mformat).  If you have to boot from floppy, because your cd-drive or bios  does
       not  support  to  boot from cd a msdos filesystem is used to run syslinux.  When bootcdflopcp is called it searches for differences between
       RAM and CD.  For each different file, it checks if it is listed in the files ignore, remove or change on floppy. If it is listed in  change
       it  will  be  saved to change.tgz on floppy. If it is listed in remove the file will be removed from ram next boot time. If it is listed in
       ignore it will be ignored. If it is not listed at all you will be interactively asked what to do.

OPTIONS

       -v  The option "-v" (verbose) adds messages on running.

       -d <device>
	   Use another device instead of "/dev/fd0" to save changes.

FILES

       FLOPPY:/remove
	      If a file is listed here the file will be deleted from ram next boot time.

       FLOPPY:/change
	      If a file is listed here bootcdflopcp will save it in change.tgz.

       FLOPPY:/ignore
	      If a file is listed here bootcdflopcp will ignore changes to this file.

       FLOPPY:/change.tgz
	      Here all changed files are stored in gzipped tar format.

SEE ALSO

       bootcd(1), bootcd2disk(1), bootcdwrite(1)

AUTHOR

       This manual page was written by Bernd Schumacher <bernd.schumacher@hp.com>, for the Debian GNU/Linux system (but may be used by others).

							   Wed Feb 23 00:00:00 EET 2000 						 BOOTCD(1)

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