Virtualbox 2.0.4
Vista host
openSUSE v11 guest

In order for guest additions to be added to openSUSE virtual machine,
kernal source needs to be compiled.

uname -r
2.6.25.5-1.1-default

Yast installed kernel source:
/usr/src/linux-2.6.25.18-0.2

Grub info:

# Modified by YaST2. Last modification on Tue Nov 4 14:01:52 PST 2008
default 1
timeout 8
gfxmenu (hd0,1)/boot/message
##YaST - activate

###Don't change this comment - YaST2 identifier: Original name: linux###
title Rt -- openSUSE 11.0 - 2.6.25.18-0.2
root (hd0,1)
kernel /boot/vmlinuz-2.6.25.18-0.2-rt
root=/dev/disk/by-id/scsi-SATA_VBOX_HARDDISK_VB4b3de370-da277bf8-part2
resume=/dev/sda1 splash=silent showopts vga=0x317
initrd /boot/initrd-2.6.25.18-0.2-rt

###Don't change this comment - YaST2 identifier: Original name:
linux-2.6.25.5-1.1-default###
title openSUSE 11.0
root (hd0,1)
kernel /boot/vmlinuz-2.6.25.5-1.1-default
root=/dev/disk/by-id/scsi-SATA_VBOX_HARDDISK_VB4b3de370-da277bf8-part2
resume=/dev/sda1 splash=silent showopts vga=0x317
initrd /boot/initrd-2.6.25.5-1.1-default



So vmlinuz-2.6.25.5-1.1-default was my original install kernel.

I used Yast to install vmlinuz-2.6.25.18-0.2-rt because I needed a
kernel that was current with the kernel source code that Yast installed.

Grub bootup menu offers the vmlinuz-2.6.25.18-0.2-rt as primary boot
option and I have used it to boot into the system.....but as you can
see, uname -r returns the vmlinuz-2.6.25.5-1.1-default kernel as the one
currently running......so the VBoxLinuxAdditions-x86.run script barfs
while trying to compile the VB guest additions into the kernel.

Have I got the wrong kernel (the newer one) installed; that is, "rt"
flavored verses "default" flavor? There's something tickling my mind
about two variations being available, IIARC, but that was at least from
a couple of years ago now.

I took another look with Yast to see if there was an alternate kernel
but didn't see anything....but I have been known to miss the obvious
"right under the nose" before! :-)

Would I be further ahead to locate and install the source for the
earlier kernel?

If anyone can shed some light on this subject it would be most
appreciated...thanks. :-)