Congrats on the z800! Sounds like a lot of fun. Don't worry about the
bad words, I've heard a lot worse I'm sure.
A bit of a crazy idea, but I've had crazier ones that were implemented:
What if you wrote your own small program, IPLable from DVD or USB (or
whatever is available on the z800), and that program would know (or get)
the subchannel id of your SCSI boot disk, run CCW's to load the SUSE
boot records into low memory, load the PSW, and off you go as if you
booted from SCSI.
Wolfgang Fritz wrote:
Hi
With sles10 there is only dasd for ipl supported
Bin unterwegs hab nur iPhone zur Verfügung.😎
Am 24.05.2017 um 17:03 schrieb Jim Stefanik <j...@jimstefanik.com>:
Hi everyone. I'm newish here...I think I may have posted once before? Hoping
someone here can help me.
I recently bought myself a z800. I've got it running and have successfully
installed SLES 10 to an FCP-attached RAID array. However, I'm stuck at the
same point that Connor Krukosky got stuck at with his machine - I don't have
Feature Code 9904 (SCSI IPL); so I can't IPL the installed OS.
There's an option in the various boot menus of SLES to boot an existing install,
however I can't seem to figure out if its possible to point it to an FCP WWPN &
LUN, or if it can only deal with DASD or something from that menu.
Does anyone have experience with using that option? If not, does anyone know
how to correctly use kexec and/or chroot to jump from a recovery mode session
to my real storage? It's been a couple of years since I've messed with kexec
and I've only used it to switch kernels, not entire filesystems. Is that even
possible?
I am able to mount my FCP LUN wihtout any issues once in recovery mode
(in-fact, I wrote a quick shell script and rigged the root login to do it for
me). I've already NFS'd off my /boot folder and zipl.conf to my file server
(I've been IPL'ing via FTP); so I can copy them around from any other machine
if needed.
I also have a StorageTek 9840A ESCON tape drive defined in my IOCDS, which I should
be able to read/write from within recovery mode. If someone knows what files and
in what order to write them to tape, I believe I can IPL from that and use
directives in the parmfile file to point to the FCP WWPN & LUN as the root file
system? Clarification on that concept in-general would be good for anyone who's
done it.
Thanks in advance!
p.s. - if anyone is interested in seeing my machine, I'm making a YouTube video
series on it. The playlist is here:
https://www.youtube.com/playlist?list=PLIWXRqvZs2Xf-VHIP7P80CDhGNcvwbS5T ....
please do note that I do use profanity. In videos going forward I will be
editing that out; so sorry about that on the older ones!
Jim Stefanik
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