Booting the Jensen System and installing BLADE

Paul Caffrey (caffrey@merry.salem.ge.com)
Sun, 29 Oct 1995 11:41:57 -0500 (EST)


I received quite a few messages asking for info on booting this system
so here is how I did it.

REQUIRED:
1 scsi drive.
1 1.44mb floppy drive in addition to the jensen one.
1 486/386 scsi machine with linux.

PROCEDURE:
1 dd the kernel / bootloader onto the scsi drive.

"dd bs=512 if=jensen_bootdisk.srm of=/dev/sdd"

make a second copy of the kernel on floppy, you will need this
later.

"dd bs=512 if=jensen_bootdisk.srm of=/dev/fd0H1440"

2 dd the root floppy onto the floppy

"dd bs=512 if=root_floppy of=/dev/fd0H1440"

3 reboot the 486 and disconnect the scsi disk

4 attach the second floppy to the jensen, mine hung sideways out
the side. Adjust the scsi id of the disk if desired and connect
up to the jensen. I used an external cable hooked up to the drive
with an old pc power supply.

5 power up the jensen and switch to VMS console ( OSF propably the same )
make sure AUTO_ACTION is set to HALT ( means you wont have to whack
the reset so much ). Insert the root floppy in the added floppy.

6 do a "show dev" to see where the disks are lets say that the disk
comes up as DKA100 for example. Boot the kernel passing the floppy
as the root device.

"boot -fl "root=/dev/fd1" dka100"

7 the system should boot up mounting the additional floppy drive as the
root partition leaving /dev/fd0 free for installing subsets as in the
blade INSTALL_GUIDE.

8 the next step although discussed in the GUIDE was a bit tricky and
you need to be carefull. Follow the disklabel instructions taking the
default options answer "w" to write the new label.

9 follow the instal_guide installing subsets "b" and "b-upd".

10 when done go to step 7 in the guide where it says

" # /mnt/sbin/cpboot /dev/fd0 " insert the floppy containing the
kernel that was made above in step 1.
skip the rest of step 7.

11 follow step 8 in the guide to reboot.

when booting you may have to pass in the root partition if you dont
have the root disk as the first scsi disk. I originaly had a NT disk as
DKA100 and the linux was DKA200, which made the root partition /dev/sdb2.
swapping these two id's made life easier.

Regards
Paul Caffrey