Zhang Binbin wrote:
> I moved a little :-)
> Something does be wrong with initrd.
> I make a new initrd according to DomU's fstab:
> # mount /dev/GuestVG/DOM1 /mnt
> # mkinitrd --fstab=/mnt/etc/fstab /boot/initrd.2.6.16.29-xenU.img
> 2.6.16.29-xen
> # umount /mnt
> then create Dom1
> there is no more LVM info.
> but it still failed to mount /root. I'm working to find out why...
>
Hi,
I am making progress, I will publish the results soon, takes roughly an
hour for each compile, already made a few today.
The tricky part is figuring out the ramdisk.
I found this document helpful for initrd understanding and creation:
http://www-128.ibm.com/developerworks/linux/library/l-initrd.html
++
> ======= 2006-12-12 05:20:33 you wrote:=======
>
>
>> TMC wrote:
>>
>>> On 11/12/06, Steven Dugway <steven@xxxxxxxxxxxxxxxxxxx> wrote:
>>>
>>>> TMC wrote:
>>>>
>>>>> can you please post your config here?
>>>>>
>>>>> I suspect that your trying to start LVM configuration from Dom0 in
>>>>> DomU...
>>>>>
>>>>> There are two ways to do things.
>>>>>
>>>>> a) put all disk in Dom0 under LVM and manage disk for all DomU
>>>>> instances that way..
>>>>>
>>>> That is how I do it and then export the partitions for each domU, works
>>>> fine with old FC5 packages.
>>>> Here is an config file:
>>>>
>>>> kernel = "/boot/vmlinuz-2.6.18-1.2849.fc6xen"
>>>> #kernel = "/boot/2.6.16-1.2122_FC5xenU"
>>>> memory = 250
>>>> name = "spooner"
>>>> ramdisk = "/boot/initrd-2.6.18-1.2849.fc6xen.img"
>>>> vif = [ '' ]
>>>> disk=['phy:/dev/VolGroup00/spooner,sda1,w','phy:/dev/VolGroup00/spoonerHS,sda4,w','phy:/dev/VolGroup00/swap1,sda2,w','file:/img/tmpfiles,sda3,w']
>>>>
>>>>
>>>> root = "/dev/sda1 ro"
>>>>
>>>>
>>> Ok.
>>>
>>> What I suspect is happening is that you have copied a whole parent
>>> server instance (with a running /etc and such like) instead of doing a
>>> clean install to your patritions with kickstart, jump-start or
>>> debootstrap.
>>>
>>>
>> This is not working.
>>
>> There is some mystery about the initrd setup.
>> I did everything I could test on my own and from suggestions on this
>> list, in vain.
>>
>> It is hard to make timely decisions with the current state of affairs
>> with Xen. I spent 4 months since the first broken package in FC5 in
>> september to try to get my Centos domU running and nothing works, which
>> means I am stuck with old version of Xen. I had hope the FC6 version
>> would fix it but no. The centos no better. Does anybody know a GNU linux
>> distro that is serious about supporting Xen?
>>
>> I did figure out the howtos of mkinird and the ramdisk concepts, the
>> problem is I do not know what to put/modify inside to make it work.
>> This is very frustrating.
>>
>> Thanks anyway.
>>
>>
>>> This means that your LVM subsystem is looking in /etc, finds configs
>>> and goesa looking for disks to manage and fails, bacuse it must. you
>>> are accessing abstracted devices not raw devices in your DomU.
>>>
>>> I think you need to blow away (or at least rename) all LVM configs in
>>> /etc/ of your DomU. They are not needed.
>>>
>>> Also you need to change:
>>> your networking (unless you DHCP)
>>> hostname
>>> edit the fstab to refer to /dev/sda1, /dev/sda2, /dev/sda3 and
>>> /dev/sda4 as required instead of lables or /dev/VolGroup** stuff.
>>>
>>> Also Please boot the XenU specific kernel, if your packages provide
>>> it. Its safer.
>>>
>>>
>>> Hope this helps
>>>
>>> Tomasz
>>>
>>>
>> --
>>
>> _______________________________________________
>> Xen-users mailing list
>> Xen-users@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-users
>>
>
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