Eric,

Are you absolutely sure you are IPLing from device number 200?

You're saying all the right things, that's for sure.  I see you're IPLing
with an initrd.  Is your DASD support compiled as a module?  If not, then
the entries in /etc/modules.conf are ignored.

When you re-IPL the system, what does the reported command line show?  (It
should be about the 8th line if you go back and do a "dmesg | less"
command.)  Are the new volumes in there?  I'm guessing not, or you wouldn't
be having this problem.

Is this a VM or LPAR installation?


Mark Post

-----Original Message-----
From: Wilson, Eric [mailto:[EMAIL PROTECTED]
Sent: Friday, June 13, 2003 9:48 AM
To: [EMAIL PROTECTED]
Subject: adding DASD post install


All;

Goofy question:  How do I enable the server to see newly added DASD
addresses
post install.  I'm sure this is something I've overlooked. Can anyone help
re-gen my clue finder?

hardware = z800
OS = RH v 7.2


[EMAIL PROTECTED] boot]# cat /proc/dasd/devices
0200(ECKD) at ( 94:  0) is dasda      : active at blocksize: 4096, 36000
blocks,
140 MB
0201(ECKD) at ( 94:  4) is dasdb      : active at blocksize: 4096, 600840
blocks, 2347 MB
0202(ECKD) at ( 94:  8) is dasdc      : active at blocksize: 4096, 600840
blocks, 2347 MB

[EMAIL PROTECTED] boot]# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/dasdb1            2365444    894780   1350504  40% /
/dev/dasda1              99072     12016     81944  13% /boot

[EMAIL PROTECTED] boot]# swapon -s
Filename                        Type            Size    Used    Priority
/dev/dasdc1                     partition       261976  0       -1


I have added some additional DASD, and can make the kerne l see it by
echoing
the addresses directly to the kernel:


[EMAIL PROTECTED] boot]# echo add range=203-206 >> /proc/dasd/devices

[EMAIL PROTECTED] boot]# cat /proc/dasd/devices
0200(ECKD) at ( 94:  0) is dasda      : active at blocksize: 4096, 36000
blocks,
140 MB
0201(ECKD) at ( 94:  4) is dasdb      : active at blocksize: 4096, 600840
blocks, 2347 MB
0202(ECKD) at ( 94:  8) is dasdc      : active at blocksize: 4096, 600840
blocks, 2347 MB
0203(ECKD) at ( 94: 12) is dasdd      : active at blocksize: 4096, 600840
blocks, 2347 MB
0204(ECKD) at ( 94: 16) is dasde      : active at blocksize: 4096, 600840
blocks, 2347 MB
0205(ECKD) at ( 94: 20) is dasdf      : active at blocksize: 4096, 600840
blocks, 2347 MB
0206(ECKD) at ( 94: 24) is dasdg      : active at blocksize: 4096, 600840
blocks, 2347 MB

But ofcourse upon reboot the devices are no longer available to the system.

I've tried adding the addresses to the modules.conf, and even to the
zipl.conf
(and rerun zipl)  as below, to no avail.

[EMAIL PROTECTED] root]# cat /etc/modules.conf
options dasd_mod dasd=200-206


[EMAIL PROTECTED] root]# cat /etc/zipl.conf
[defaultboot]
default=linux
target=/boot/
[linux]
     image=/boot/vmlinuz-2.4.20-1.1931.2.179.2.1.ent
     ramdisk=/boot/initrd-2.4.20-1.1931.2.179.2.1.ent.img
     parameters="root=LABEL=/ dasd=200-206"



Cheers;

E!

-----------------
Eric Wilson
IBM Certified Advanced Technical Expert
RedHat Certified Engineer

Anheuser-Busch Companies, Inc.
One Busch Place
1CC-8
St. Louis, MO

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