[Summary] Kernel correcting deviceentry/Linux remote boot

From: Norbert Kasperczyk-Borgmann <nkb_at_informatik.fh-hamburg.de>
Date: Wed, 20 May 1998 15:39:26 +0200 (MET DST)

-------------------------------------------------------
Norbert Kasperczyk-Borgmann
Fachhochschule Hamburg - University of Applied Sciences
Fachbereich E/I, Softwarelabor
Berliner Tor 3, D-20099 Hamburg, Germany
 
phone: +49-40-2488 3167
fax: +49-40-2488 3121
email: nkb_at_informatik.fh-hamburg.de
X-Mailer: ELM [version 2.4 PL25]
Content-Type: text
Content-Length: 2391

Hi Gurus,

there was no help from the list, so I think the need to remote boot
and administrate Linux PC's from a Alpha box is very seldom.
With ULTRIX there was no Problem, but I don't like to run too much
operating systems. I'll take one Linux PC as server and the others take
this as boot Server.

yours sincerely

Norbert

====== Addendum (sent at 15.5.98 to the list)

ups, I forgot the Version of OS and Configuration:

Server:
=======
Machine: AlphaServer 1000A 5/333
Operatingsystem: Digital UNIX 4.0B Patch Kit 6

PC:
===
Slackware Linux 3.3

The problem seams to be very strange, until now there is no help from the list,
but I'll hope get some at beginning of next week (:

Norbert

========== Original question (sent at 14.5.98 to the list)

I have problems with the kernels view to character-/blockdevices.
The background is that i want to boot some linux PC`s remote.
I copied the root of one linux PC to an DUNIX System (filesystem /linux/dlc).

- The list from a device I need at the DUNIX Box is e.g.:
  crw-r--r-- 1 root bin 0,1344 Apr 29 10:33 cua0

- The list from the same device at a linux Box
  ('/linux/dlc' mounted as nfs) is:
  crw-r--r-- 1 root bin 5, 64 Apr 28 14:58 cua0

So there are two different interpretations of deviceentries depending
of the operating System.

So far there is no problem, but unfortenaly the DUNIX kernel
changes after some minutes or hours or just after an unmount/mount of
the filesystem the deviceentry. Now the list of the same entry toogles.

- The list at the DUNIX Box now is changed to:
  crw-r--r-- 1 root bin 5, 64 Apr 28 14:58 cua0

- The list from the same device at a linux Box
  ('/linux/dlc' mounted as nfs) is:
  crw-r--r-- 1 root bin 0,1344 Apr 29 10:33 cua0

With this device the linux kernel can't work.

What I know so far is that the change isn't made from
'/sbin/kloadsrv' because i killed it and the change was done too.

I checked the '/etc/inittab' and crontab from root , but didn't find
a daemon which could be the bad boy.

Do you know a way to tell the DUNIX kernel it shouldn't worry about
some or all deviceentries?

I know that i loos the possibility to attach new hardware like a disk
to a running system when there is now check, but that's ok for me.

I hope someone out solve such a problem, and I'll summarize.

your's sincerely

Norbert
Received on Wed May 20 1998 - 15:39:37 NZST

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