Xen project Mailing List

-------- Original Message --------
Subject: Re: [Xen-users] Unable to boot installation ISO
From: Flavio <fbcyborg@xxxxxxxxx>
Date: Wed, April 04, 2012 12:49 pm
To: john@xxxxxxxxxxxx
Cc: xen-users@xxxxxxxxxxxxx

OK,

this is the test I've just done for you.
dom0:
3.3.0-gentoo kernel x86_64
app-emulation/xen-4.1.2
app-emulation/xen-tools-4.1.2-r2

domU installation:
ISO image: install-amd64-minimal-20120216.iso
I see you used a physical device. It should not be different.

I create the filesystem image using dd:
dd if=/dev/zero of=gentoo.img bs=1024k count=1 seek=15360

So, now I have three files in my domU directory:
gentoo.cfg gentoo.img install-amd64-minimal-20120216.iso

And this is the content of gentoo.cfg:
kernel = "/usr/lib/xen/boot/hvmloader"
builder='hvm'
memory = 1024
shadow_memory = 8
name = "gentoo"
vif = [ 'type=ioemu, mac=00:16:3e:00:00:02, bridge=xenbr0' ]
acpi = 1
apic = 1
disk = [ 'file:/path/to/gentoo.img,hda,w',
'file:/path/to/install-amd64-minimal-20120216.iso,hdc:cdrom,r' ]
boot="dc"
sdl=0
vnc=1
vncconsole=1
vncpasswd=''
stdvga=1
videoram=16
keymap="it"

serial='pty'
usbdevice='tablet'

Then I do xl create gentoo.cfg
xl vncviewer gentoo

(in this case vnc crashes - I didn't understand why yet - and
I have to re-run xl vncviewer gentoo)

and I can access to the minimal live gentoo and proceed with
the domU installation

Cheers,

Flavio

On 4 April 2012 17:57, John F. Acree <john@xxxxxxxxxxxx> wrote:
> The gentoo minimal cd worked fine for me with xcp1.1, which I think is
> running the xen-3 series. It was only on xcp1.5 that I ran into problems
> getting it to be bootable, which I think runs the xen-4 series.
>
> I have no idea what the difference is between the two. But as soon as I get
> the chance I will take a screenshot of the boot process when it fails, and
> include the vm-param-list output for that vm.
>
> Maybe something has changed in the way the cdrom is handled or reported?
>
> John
>
>> Ok, to make a follow up on my original email, I tried linux rescue CD
>> (systemrecue cd) and it booted. I saw that it dosent (or dosent appear
>> to) support native Xen frontend driver so sees the cdrom in HVM.
>> the gentoo seems to support native xen drivers (when booting, I can see
>> the disk with xvda : xvda1, xvda2, etc)
>> maybe the ISO dosent support a native xen cdrom driver (if there is one) ?
>> J-F
>>
>> -------- Original Message --------
>> Subject: Re: [Xen-users] Unable to boot installation ISO
>> From: "John F. Acree" <john@xxxxxxxxxxxx ><mailto:john@xxxxxxxxxxxx>>
>> Date: Wed, April 04, 2012 11:40 am
>> To: xen-users@xxxxxxxxxxxxx <mailto:xen-users@xxxxxxxxxxxxx>
>>
>> Hi,
>>
>> I have had a similar problem, and as yet have not had a chance to take
>> the screenshot as was requested earlier(maybe this weekend I can get
>> to it.)
>>
>> My solution, until it can be figured out what needs to be changed so
>> the
>> gentoo minimal cd will boot, is that I used an ubuntu cd.
>>
>> I am writing up instructions on this approach, but might be several
>> days
>> or weeks before I release it(my first attempt at technical
>> documentation.)
>>
>> Basic steps:
>> Select other install media.
>> Load the ubuntu iso or cd.
>> Format the target drive.
>> Copy down the gentoo stage3 and portage archives to the target drive.
>> Extract packages, per install instructions.
>> Chroot as normal and continue with the install instructions.
>>
>> Hope this helps. But I am not using a gentoo dom0, using xcp 1.5, so
>> there are differences.
>>
>> John
>>
>> > Hi,
>> > I build Xen 4.1.1 on a Gentoo base dom0. Everything is working
>> great. I
>> > tried one of Joseph Glanville's PV-HVM image (debian6) and its
>> working
>> > as it should.
>> > Now l'im trying to build a Gentoo based domU with then same specs as
>> > Joseph's PV-HVM.
>> > I used a copy of the .cfg and adapted to my needs to make the
>> gentoo work.
>> > when booting the minimal install image using the iso, it starts
>> loading
>> > the CD and then when trying to mount the cd-rom it dosent see it .
>> > here is a copy of the .cfg i used:
>> > kernel = 'hvmloader'
>> > builder = 'hvm'
>> > memory = 4096
>> > vcpus = 4
>> > name = "vm-vps3"
>> > vif = [ 'bridge=virbr0' ]
>> > disk = ['phy:/dev/vgPool1/VM-VPS3,hda,w',
>> >
>>
>> 'file:/mnt/iso-images/gentoo/amd64/install-amd64-minimal-20120223.iso,hdc:cdrom']
>> > acpi = 1
>> > boot = 'd'
>> > sdl = 0
>> > serial = 'pty'
>> > xen_platform_pci = 1
>> > vnc = 1
>> > vncpasswd = 'password'
>> > vnclisten = 'localhost'
>> > vncdisplay = '343'
>> > I tried with xen_platform_pci set to 0 but the just hangs to boot
>> > procedure when loading the sata_piix module.
>> > any ideas on this ?
>> > Thanks,
>> > J-F

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