Srinivas,
It appears you're 64-bit, from this:
> (version 2.4.19-3suse-SMP) (s390x)
s390x is the 64-bit implementation, s390 is the 32-bit. The directories
shown look like mine, and I'm running SLES 8 s390x, too.
Regards,
--Jim--
James S. Tison
Senior Software Engineer
TPF Laboratory / Architecture
IBM Corporation
"If dogs don't go to heaven, then, when I die, I want to go where they
do." -- Will Rogers
Taraka Srinivas Kumar <[EMAIL PROTECTED]>
Sent by: Linux on 390 Port <[EMAIL PROTECTED]>
05/05/2004 02:07
Please respond to
Linux on 390 Port
To
[EMAIL PROTECTED]
cc
Subject
Re: Central processor is looping when 64 bit linux is IPLed
Hi Jim/Mark,
I have tried the same after chrooting into /mnt/newroot. Also issued
mkinitrd,zipl.
Re-IPled using 1b26, again the same cpu looping problem re-appears.
How to check if the kernel on the disk is 64 bit or not ??
Below is the procedure i have followed :
inst-sys:~ # insmod dasd_mod dasd=1b26-1b28
Using
/lib/modules/2.4.19-3suse-SMP/kernel/drivers/s390/block/dasd_mod.o
inst-sys:~ # insmod dasd_eckd_mod
Using
/lib/modules/2.4.19-3suse-SMP/kernel/drivers/s390/block/dasd_eckd_mod.o
inst-sys:~ # mount /dev/dasda1 /mnt/newroot
inst-sys:~ # mount /dev/dasdb1 /mnt/newroot/usr
inst-sys:~ # chroot /mnt/newroot
inst-sys:~ # vi /etc/zipl.conf
# Generated by YaST2
[defaultboot]
default=ipl
[ipl]
target=/boot/zipl
image=/boot/kernel/image
ramdisk=/boot/initrd
parameters="dasd=1b26-1b28 root=/dev/dasda1"
[dumpdasd]
target=/boot/zipl
dumpto=/dev/dasd??
[dumptape]
target=/boot/zipl
dumpto=/dev/rtibm0
~
~
linux64:/# mkinitrd
using "/dev/dasda1" as root device (mounted on "/" as "ext2")
Found ECKD dasd, adding dasd eckd discipline!
Note: If you want to add ECKD dasd support for later mkinitrd
calls where possibly no ECKD dasd is found, add dasd_eckd_mod
to INITRD_MODULES in /etc/sysconfig/kernel
creating initrd "/boot/initrd" for kernel "/boot/kernel/image"
(version 2.4.19-3suse-SMP) (s390x)
- insmod dasd_mod dasd=$dasd
(kernel/drivers/s390/block/dasd_mod.o)
- insmod dasd_eckd_mod
(kernel/drivers/s390/block/dasd_eckd_mod.o)
Run zipl now to update the IPL record!
linux64:/# zipl -c /etc/zipl.conf
building bootmap : /boot/zipl/bootmap
adding Kernel Image : /boot/kernel/image located at 0x00010000
adding Ramdisk : /boot/initrd located at 0x00800000
adding Parmline : /boot/zipl/parmfile located at 0x00001000
Bootloader for ECKD type devices with z/OS compatible layout installed.
Syncing disks....
...done
linux64:/#exit
Regards,
Srinivas.
Jim Sibley <[EMAIL PROTECTED]>
Sent by: Linux on 390 Port <[EMAIL PROTECTED]>
05/04/04 10:03 PM
Please respond to
Linux on 390 Port <[EMAIL PROTECTED]>
To
[EMAIL PROTECTED]
cc
Subject
Re: Central processor is looping when 64 bit linux is IPLed
target=/mnt/boot/zipl
image=/mnt/boot/kernel/image
ramdisk=/mnt/boot/initrd
parameters="dasd=1b26-1b28 root=/dev/dasda1"
The /mnt mount should not be there. The purpose of the
chroot is to make /mnt the "root" device. Also, since
/usr is a separate volume, you need a bit more.
After IPL'in the cd,
mount /dev/dasda1 /mnt/newroot
mount /dev/dasdb1 /mnt/newroot/usr
mount proc proc /mnt/newroot/proc
chroot /mnt/newroot
edit /etc/zipl.conf such that the /mnt is removed
run mkinitrd
zipl
exit (to get out of chroot)
sync
halt
Then boot with your new system.
=====
Jim Sibley
RHCT, Implementor of Linux on zSeries
"Computer are useless.They can only give answers." Pablo Picasso
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