[Pkg-xen-devel] Bug#657014: Wheezy, Squeeze and Ubuntu server 11.10 has missing boot option to Xen

[Erik Hjelmås]

Package: xen-hypervisor-4.1-amd64
Version: 4.1.2-2

When installing xen-linux-system on a new Dell R810 server, Wheezy, 
Squeeze and Ubuntu server 11.10 all boot fine when booted directly into 
the standard kernel, but when booting through Xen (after installing the 
package xen-linux-system) the boot process hangs as soon as Xen passes 
control to the Dom0 kernel:

"Gave up waiting for root device" etc

and it gives me Busybox, but it is also frozen, so there's no other 
option that reboot.

After several days of troubleshooting it turns out that adding dom0_mem 
option (e.g. dom0_mem=8192M) to the multiboot line of 
/etc/grub.d/20_linux_xen FIXES THE PROBLEM !

maybe this has to be fixed in the package?

(I havent tried this out on other hardware, only on the Dell R810 with 
256GB RAM and four eight-core processors)

kind regards,

/Erik