I'm debugging a stack overflow and I added some debugging code to
vsprinf.c in the kernel source tree (under /usr/src/linux-2.4.21-17.EL)
on my RHEL3 U3 beta VM guest and did:
make mrproper
cp configs/kernel-2.4.21-s390.config .config
make oldconfig dep image install
When I rebooted (i.e. ipl'd b91) my VM guest, the rebuilt kernel did not
start, instead I got the original kernel I had started with. I checked
/etc/zipl.conf and saw that rebuilding the kernel added a stanza for the
new kernel ([2.4.21-17.ELcus]) but it hadn't changed the "default="
target, which was still set to "linux". I changed that to be the new
stanza that was added and re-ran zipl. This seemed to go OK, but then
when I rebooted, the guest just "hung". That is, after the "ipl b91",
nothing happened on the console. I don't really know VM well enough to
tell if it was looping, or waiting for something, or what. If I boot
another image, mount the b91 disk, and put zipl.conf back the way it
was, run zipl again on that disk, and then reboot, the original linux
image comes up fine. Can you give me any pointers on what I'm doing
wrong or what I might try?
-- Thanks, Rick
P.S. - Here's my zipl.conf (after the rebuild and after my edit to set
default):
[defaultboot]
target = /boot
default = 2.4.21-0809.ELc
[2.4.21-0809.ELc]
target=/boot
image=/boot/vmlinuz-2.4.21-0809.ELcustom
ramdisk=/boot/initrd-2.4.21-0809.ELcustom.img
parameters="root=LABEL=/"
[linux]
target=/boot
image=/boot/vmlinuz-2.4.21-17.EL
ramdisk=/boot/initrd-2.4.21-17.EL.img
parameters="root=LABEL=/"
And here's my /boot after the rebuild (and install):
total 11364
drwxr-xr-x 3 root root 4096 Aug 9 15:42 .
drwxr-xr-x 24 root root 4096 Aug 10 08:40 ..
lrwxrwxrwx 1 root root 23 Aug 9 15:42 System.map ->
System.map-2.4.21-17.EL
-rw-r--r-- 1 root root 271377 Aug 9 15:29 System.map-2.4.21-0809.ELcustom
-rw-r--r-- 1 root root 273459 Jul 8 19:39 System.map-2.4.21-17.EL
-rw------- 1 root root 66048 Aug 10 08:19 bootmap
-rw-r--r-- 1 root root 48808 Jul 8 19:39 config-2.4.21-17.EL
drwxr-xr-x 2 root root 4096 Aug 2 13:49 grub
-rw-r--r-- 1 root root 681914 Aug 9 15:29 initrd-2.4.21-0809.ELcustom.img
-rw-r--r-- 1 root root 681494 Aug 2 13:52 initrd-2.4.21-17.EL.img
-rw-r--r-- 1 root root 331 Aug 2 13:52 kernel.h
-rw-r--r-- 1 root root 23108 Sep 11 2003 message
-rw-r--r-- 1 root root 21282 Sep 11 2003 message.ja
-rw-r--r-- 1 root root 1200 Jun 24 13:11 tape0
-rwxr-xr-x 1 root root 3179824 Jul 8 19:40 vmlinux-2.4.21-17.EL
lrwxrwxrwx 1 root root 28 Aug 9 15:29 vmlinuz ->
vmlinuz-2.4.21-0809.ELcustom
-rw-r--r-- 1 root root 3153152 Aug 9 15:29 vmlinuz-2.4.21-0809.ELcustom
-rwxr-xr-x 1 root root 3161344 Jul 8 19:39 vmlinuz-2.4.21-17.EL
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