http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=176
Summary: x86_64 - Unable to boot domU
Product: Xen
Version: unstable
Platform: x86-64
OS/Version: All
Status: NEW
Severity: critical
Priority: P2
Component: Guest-OS
AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
ReportedBy: dbarrera@xxxxxxxxxx
CC: hohnbaum@xxxxxxxxxx
I've built Xen with the latest hg source pull, and I am not able to boot domU on
my x86_64 boxes using configurations and setups that have previously worked. Has
something changed since late last week that would require a change in my domU
configuration file?
Last changeset on test build:
changeset: 6315:531ad4bde8f249c318588f41bdbb72d0b0e0ea9c
tag: tip
parent: 6314:473af43ac65b1a872b058469d01acc6cfa21505d
parent: 6313:d8fd24b4308078f6d20aa8a306e540c5833ca5a2
user: cl349@xxxxxxxxxxxxxxxxxxxx
date: Mon Aug 22 05:21:18 2005
summary: merge?
When creating DomU, I get the following error message:
VFS: Cannot open root device "sdb2" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
The file system for DomU is ext3, and I've made sure that it is built in xenU
kernel.
This are the xm dmesg lines displayed when error occurs:
(XEN) (file=grant_table.c, line=1071) Grant unref rd(5) ld(0) frm(d485) flgs(0).
(XEN) (file=traps.c, line=878) Non-priv domain attempted
RDMSR(00000000c0000080,00020000,00020000).
(XEN) (file=traps.c, line=870) Non-priv domain attempted
WRMSR(00000000c0000100,00000000,00000000).
(XEN) (file=traps.c, line=870) Non-priv domain attempted
WRMSR(00000000c0000102,00000000,00000000).
(XEN) (file=traps.c, line=878) Non-priv domain attempted
RDMSR(00000000c0000080,00000000,00000000).
stop_this_cpu disable_local_apic
This is the domU configuration file:
# Kernel image file.
kernel = "/boot/vmlinuz-2.6-xenU"
# Optional ramdisk.
# ramdisk = "/boot/initrd-2.6.11.12-xenU"
# The domain build function. Default is 'linux'.
builder='linux'
# Initial memory allocation (in megabytes) for the new domain.
# memory = 256
memory = 512
# A name for your domain. All domains must have different names.
name = "vm1"
disk = [ 'phy:sdb1,0811,w','phy:sdb2,0812,w' ]
# Set if you want dhcp to allocate the IP address.
# vif = [ 'mac= AA:00:00:47:CB:34, bridge=xen-br0' ]
# Set if you want dhcp to allocate the IP address.
#dhcp="dhcp"
# Set netmask.
#netmask = '255.255.255.0'
# Set default gateway.
# gateway = '9.53.94.0'
# Set the hostname.
# hostname= "vm%d" % vmid
# Set root device.
root = "/dev/sdb2 ro"
# Sets runlevel 4.
# extra = "4"
#==============
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