Thank you for sharing. I'll look for it to wander in to our mail server shortly.
And I susepct your code is not as ugly as my code. I still have cobol damage.
"Romanowski, John (OFT)"
<[EMAIL PROTECTED]>
Sent by: Linux on 390 Port
To
<LINUX-390@VM.MARIST.EDU>
LINUX-390@VM.MARIST.EDU
cc
03/08/2007 11:16 AM
Subject
Re: Root
file system on ramdisk
Please respond to
Linux on 390 Port <LINUX-390@VM.MARIST.EDU>
Jim,
I've emailed you the Bash script (it's only my 2nd Bash script so be
nice ;)
The script needs a SLES9 31- or 64-bit (it handles either) to run on and
an output ECKD mdisk at address 0.0.ded1;
ded1 doesn't have to be online or formatted, the script handles all
that; ded1 mdisk has to be large enough to hold the used part of the
copied system; eg if your SLES9 is 2GB used disk space and 2GB free,
then ded1 needs 2GB.
My 31-bit SLES9 rescue system fits on 1600 cyls, the 64-bit on 1800
cyls. I haven't had time to invest in paring it down smaller: disk is
cheap compared to time.
the rescue system on ded1 is bootable when the script ends, nothing
further needed, just LINK uzr ded1 ded0 RR and IPL ded0 (it expects ded0
is the read-only address)
-----Original Message-----
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
James Melin
Sent: Thursday, March 08, 2007 9:44 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Root file system on ramdisk
I'd be very interested in seeing what you did to accomplish that,
myself.
-J
"Romanowski, John (OFT)"
<[EMAIL PROTECTED]>
Sent by: Linux on 390 Port
To
<LINUX-390@VM.MARIST.EDU>
LINUX-390@VM.MARIST.EDU
cc
03/07/2007 10:05 PM
Subject
Re:
Root file system on ramdisk
Please respond to
Linux on 390 Port <LINUX-390@VM.MARIST.EDU>
I've built our SLES9 rescue system as a read-only mdisk that multiple
guests can LINK and boot from simultaneously but have their read-write
file
systems in ramfs using part of their memory.
Works very well. It's not like knoppix since the filesystems aren't
compressed on the mdisk but it'll do until squashfs comes with zSeries
SLES. I
have a script that copies the SLES9 on which it runs to a single mdisk
and then modifies the copy, tweaking it to be a rescue system.
My rescue system automatically assumes the failed SLES9 guest's
"identity" (hostname, IP addrs, TSM client config, etc); that way my
Putty ssh
session definitions for each guest are still valid and my LDAP userid/pw
works as usual to login to the rescue system. An it makes it easy to
have
Tivoli Storage Manager (TSM) restore files since the server thinks the
rescue system is the failed guest and hence authorized to ask for its
own
files.
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-----Original Message-----
From: Linux on 390 Port on behalf of Eric Gaulin
Sent: Wed 3/7/2007 9:20 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Root file system on ramdisk
Hi everybody,
Any succes stories about having root file system on a ramdisk (a la
knoppix)
with sles9 or 10 on zVM ?
--
Eric Gaulin
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