Re: [Xen-users] FC3 domU using Xen 3.0

["Henning Sprang" <henning_sprang@xxxxxx>]

On 1/15/07, AndreGround <andreground@xxxxxxxxx> wrote:
> Actually I've two questions:
> 1) Is there a way to migrate my old domU? (I can't find any hint both on
> google and also on this mailing-list)
> I can't find a way to boot it.
> Here's my config file:
>
> kernel ="/boot/vmlinuz-2.6.18-1.2869.fc6xen"
> #ramdisk = "/boot/initrd-2.6.18-1.2869.fc6xenU.img"
> memory = 256
> name = "mail"
> vif = ['mac=aa:00:00:00:00:01']
> disk =
> ['file:/xen/mail/fedora.img,sda1,w','file:/xen/mail/swap1.img,sda2,w']
I would not use file-based devices as block devices on production
systems. I heard people having a lot trouble with them.

For testing and short-term stuff, it should be allright.

> root = "/dev/sda1"
> extra = "ro selinux=0 3"
>
> This is the error I get:
> VFS: Cannot open root device "sda1" 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)
Try using xvda, or add the scsi dik driver manually to the fedora
Initrd. I think fedora wants to work only with xvda drives in DomU...
And, I'm not sure if fedora Xen Package can use the phy: block
devices. At least, every domain created with their virt-install tool
uses blocktap tap:aio for block device access.

> 2) Is there a way to make a brand new FC3 installation under Xen 3.0?
Hmm, I don't know. I used yum with --installroot to bootstrap fc5 and
fc6 on debian, fedora, and suse. I don't know if yum repositories even
exist for fc3.

Then there's rpmstrap and mach as tools for building chroots/base
system images for fedora, but I also don't know if they contain
scripts for older versions. For romstrap theres some chance, I know
the newest one they have is fc4, and they have multiple scripts for
different FC versions.

Henning

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