Re: Re: [Xen-users] XCP/XenServer Migration utility now available at xen.org

[David Markey <admin@dmarkey.com>]

[-- Attachment #1.1: Type: text/plain, Size: 6346 bytes --]

No im afraid not.

YOU have to make these changes to menu.lst and fstab before migration.

If your VMs are the exact same, this should be easily scripted. i.e.

vmdisk="/dev/xen/vm1root"

mount $vmdisk /mnt/tmp

sed -i.bak -e 's/xvda1/xvda/g' -e  's/xvda2/xvdb/g' /mnt/tmp/etc/fstab
/mnt/tmp/etc/fstab

umount /mnt/tmp






2010/3/15 Martinx - ジェームズ <thiagocmartinsc@gmail.com>

> So, your script can make a new partition scheme and a new fstab for my VMs
> before stream it to the XenServer?
> Because I have more than 100 VMs to copy!  :-/
>
>
> 2010/3/15 David Markey <admin@dmarkey.com>
>
>> Wow, what a pain :)
>>
>>
>>
>> 2010/3/15 Martinx - ジェームズ <thiagocmartinsc@gmail.com>
>>
>>> Yeah! Sure!
>>>
>>>  Today I'm doing this work manually... I mean, to copy a VM from open
>>> source Xen to the XenServer I do:
>>>
>>> 1- stop the VM on my debian dom0;
>>> 2- mount its root file system under /mnt/source;
>>> 3- export it via NFS;
>>> 4- At the XenServer, I boot the sysrescuecd (a live system);
>>> 5- fdisk the /dev/sda;
>>> 6- create the LVM volumes;
>>> 7- mount /dev/vg01/root under /mnt/target;
>>> 8- mount /dev/sda1 under /mnt/target/boot;
>>> 9- mount the debian dom0 nfs server under /mnt/source;
>>> 10- cp /mnt/source/* /mnt/target/
>>> 11- edit the /etc/fstab and the grub's menu;
>>> 12- shutdown the VM;
>>> 13- Convert it from HVM to PVM;
>>> 14- start the VM;
>>>
>>>
>>> Thanks,
>>> Thiago
>>>
>>> 2010/3/15 David Markey <admin@dmarkey.com>
>>>
>>>> If you change xvda1 to xvda, change xvda2 to xvdb it will work fine.
>>>>
>>>> Change references in /boot/grub/menu.lst of xvda1 to xvda
>>>>
>>>> Change references in /etc/fstab of xvda1 to xvda, and xvda2 to xvdb.
>>>>
>>>>
>>>> Understand?
>>>>
>>>>
>>>> 2010/3/15 Martinx - ジェームズ <thiagocmartinsc@gmail.com>
>>>>
>>>>> Exactly!
>>>>>
>>>>>  The first one is for my domU hosted at my open source Xen (powered by
>>>>> Debian), the second fstab, is the new one, used for my guests hosted at my
>>>>> XenServers.
>>>>>
>>>>>
>>>>> Thanks!
>>>>> Thiago
>>>>>
>>>>> 2010/3/15 David Markey <admin@dmarkey.com>
>>>>>
>>>>>> I'm confused,
>>>>>>
>>>>>> You supply 2 fstabs there, one using LVM, one without. Which one is
>>>>>> it?
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> 2010/3/15 Martinx - ジェームズ <thiagocmartinsc@gmail.com>
>>>>>>
>>>>>> Hi David!
>>>>>>>
>>>>>>>  My Xen domU in my open source dom0 (Debian) have this configuration
>>>>>>> file:
>>>>>>>
>>>>>>> ----
>>>>>>> bootloader  = '/usr/bin/pygrub'
>>>>>>> extra       = 'console=hvc0'
>>>>>>> memory      = '64'
>>>>>>> disk        = [
>>>>>>>                   'phy:/dev/HyperVG01/guest01-root,xvda1,w',
>>>>>>>                   'phy:/dev/HyperVG01/guest01-swap,xvda2,w',
>>>>>>>               ]
>>>>>>> name        = 'guest01'
>>>>>>> vif         = [ 'mac=00:01:64:4b:0d:2e, vifname=guest01-eth0,
>>>>>>> bridge=eth0' ]
>>>>>>> on_poweroff = 'destroy'
>>>>>>> on_reboot   = 'restart'
>>>>>>> on_crash    = 'restart'
>>>>>>> ----
>>>>>>>
>>>>>>>  My guest01 /etc/fstab file:
>>>>>>>
>>>>>>> proc            /proc           proc    defaults        0       0
>>>>>>> /dev/xvda1      /               ext3    relatime,errors=remount-ro
>>>>>>> 0       1
>>>>>>> /dev/xvda2      none            swap    sw              0       0
>>>>>>>
>>>>>>>  BUT, this is for open source Xen domU, within the XenServer, the
>>>>>>> guest01 should be:
>>>>>>>
>>>>>>> proc            /proc           proc    defaults        0       0
>>>>>>> /dev/xvda1      /boot           ext2    defaults        0       2
>>>>>>> /dev/mapper/vdwuaf1-root /               ext3    errors=remount-ro
>>>>>>> 0       1
>>>>>>> /dev/mapper/vdwuaf1-swap_1 none            swap    sw
>>>>>>> 0       0
>>>>>>>
>>>>>>>  And the partition table of the guest01:
>>>>>>>
>>>>>>> guest01:~# fdisk -lu /dev/xvda
>>>>>>>
>>>>>>> Disk /dev/xvda: 8589 MB, 8589934592 bytes
>>>>>>> 255 heads, 63 sectors/track, 1044 cylinders, total 16777216 sectors
>>>>>>> Units = sectors of 1 * 512 = 512 bytes
>>>>>>> Disk identifier: 0x0009c181
>>>>>>>
>>>>>>>     Device Boot      Start         End      Blocks   Id  System
>>>>>>> /dev/xvda1   *          63      498014      248976   83  Linux
>>>>>>> /dev/xvda2          498015    16771859     8136922+  8e  Linux LVM
>>>>>>>
>>>>>>>  You tool can recreate the partition scheme? Or it just copy the domU
>>>>>>> as is?
>>>>>>>  I have many others domU like this to copy...
>>>>>>>
>>>>>>> Thanks!
>>>>>>> Thiago
>>>>>>>
>>>>>>> 2010/3/15 David Markey <admin@dmarkey.com>
>>>>>>>
>>>>>>> If anyone has feature requests, direct them here.
>>>>>>>>
>>>>>>>> The next feature i'll be working on is supporting kernels loaded
>>>>>>>> from the Dom0. The kernel images will have to be copied to the XenServer/XCP
>>>>>>>> Dom0.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> 2010/3/12 Martinx - ジェームズ <thiagocmartinsc@gmail.com>
>>>>>>>>
>>>>>>>>> Really COOL!!! I'm doing all this work manually until now!
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On 12 March 2010 15:33, David Markey <david.markey@citrix.com>wrote:
>>>>>>>>>
>>>>>>>>>> Hi all,
>>>>>>>>>>
>>>>>>>>>> A new python based migration utility for migrating your xend
>>>>>>>>>> virtual machines to XCP  is now available at:
>>>>>>>>>>
>>>>>>>>>> http://www.xen.org/products/cloud_projects.html
>>>>>>>>>>
>>>>>>>>>> It can generate XVAs from your xend based HVM and paravirtualised
>>>>>>>>>> virtual machines.
>>>>>>>>>> It can also steam your VM directly to a XenServer/XCP host over
>>>>>>>>>> HTTP or HTTPS.
>>>>>>>>>>
>>>>>>>>>> Please read the README for pointers and guidelines on how to
>>>>>>>>>> prepare your VMs for migration to XCP. Most PV based virtual machines will
>>>>>>>>>> need some preparation work.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Thanks to Stephen Spector and Dave Scott!
>>>>>>>>>>
>>>>>>>>>> Enjoy,
>>>>>>>>>>
>>>>>>>>>> David
>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> Xen-users mailing list
>>>>>>>>>> Xen-users@lists.xensource.com
>>>>>>>>>> http://lists.xensource.com/xen-users
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Xen-devel mailing list
>>>>>>>>> Xen-devel@lists.xensource.com
>>>>>>>>> http://lists.xensource.com/xen-devel
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>

[-- Attachment #1.2: Type: text/html, Size: 11437 bytes --]

[-- Attachment #2: Type: text/plain, Size: 138 bytes --]

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel