Re: Xen Dom U kernel

[kishore kumar <bodkekumar@gmail.com>]

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I am using RHEL5.

and I have below too in my .config.

CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y

My /etc/modprobe.conf has the following

alias scsi_hostadapter ahci
alias eth2 ixgbe
alias eth3 ixgbe

Do I need to add the below lines in /etc/modprobe.conf ??
from http://wiki.xensource.com/xenwiki/2.6.18-to-2.6.31-and-higher link?

# RHEL -> FC11 quick upgrade path.
grep -q xenfs /etc/fstab || echo "xenfs
/proc/xen               xenfs   defaults        0 0" >> /etc/fstab
if grep -q ata_piix /etc/modprobe.conf ; then
        NR=`cat /etc/modprobe.conf | grep scsi | wc -l | sed
s/[[:space:]]*//`
        grep -q pata_oldpiix /etc/modprobe.conf || echo "alias
scsi_hostadapter$NR pata_oldpiix" >> /etc/modprobe.conf
fi
grep -q hvc /etc/inittab || echo "co:2345:respawn:/sbin/agetty hvc0 9600
vt100-nav" >> /etc/inittab
grep -q hvc0 /etc/securetty || echo "hvc0" >> /etc/securetty
Could you please let me know what exactly needs to be done?  I could not get
much out of it?
Thank You.

On Thu, Apr 22, 2010 at 2:47 PM, Konrad Rzeszutek Wilk <
konrad.wilk@oracle.com> wrote:

> On Thu, Apr 22, 2010 at 02:35:04PM -0700, kishore kumar wrote:
> > OK.
> > what could be the reason for my domU creation is failing here?
>
> Hmm, Are you using a RHEL5/CentOS based userspace to build the initrd
> image?
>
> If you are please take a look at this:
> http://wiki.xensource.com/xenwiki/2.6.18-to-2.6.31-and-higher
>
> >
> > Mounting proc filesystem
> > Mounting sysfs filesystem
> > Creating /dev
> > Creating initial device nodes
> > Setting up hotplug.
> > Creating block device nodes.
> > Scanning and configuring dmraid supported devices
> > Scanning logical volumes
> > Reading all physical volumes. This may take a while...
> > Found volume group "VolGroup01" using metadata type lvm2
> > lvm used greatest stack depth: 4912 bytes left
> > Activating logical volumes
> > 2 logical volume(s) in volume group "VolGroup01" now active
> > Trying to resume from /dev/VolGroup01/LogVol01
> > No suspend signature on swap, not resuming.
> > Creating root device.
> > Mounting root filesystem.
> > mount: could not find filesystem '/dev/root'
> > Setting up other filesystems.
> > Setting up new root fs
> > setuproot: moving /dev failed: No such file or directory
> > no fstab.sys, mounting internal defaults
> > setuproot: error mounting /proc: No such file or directory
> > setuproot: error mounting /sys: No such file or directory
> > Switching to new root and running init.
> > unmounting old /dev
> > unmounting old /proc
> > unmounting old /sys
> > switchroot: mount failed: No such file or directory
> > Kernel panic - not syncing: Attempted to kill init!
> > Pid: 1, comm: init Not tainted 2.6.33 #3
> > Call Trace:
> > [<ffffffff810513fa>] panic+0xa5/0x171
> > [<ffffffff81006891>] ? xen_force_evtchn_callback+0xd/0xf
> > [<ffffffff8148ce94>] ? _raw_write_unlock_irq+0x30/0x3b
> > [<ffffffff8107ecb8>] ? trace_hardirqs_on_caller+0x110/0x134
> > [<ffffffff8107ece9>] ? trace_hardirqs_on+0xd/0xf
> > [<ffffffff8148ce9b>] ? _raw_write_unlock_irq+0x37/0x3b
> > [<ffffffff81054b0c>] do_exit+0x7c/0x6f5
> > [<ffffffff8107189f>] ? up_read+0x2b/0x2f
> > [<ffffffff81055221>] sys_exit_group+0x0/0x1b
> > [<ffffffff81055238>] sys_exit_group+0x17/0x1b
> > [<ffffffff81009cf2>] system_call_fastpath+0x16/0x1b
>

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