RE: [Xen-users] XEN 4.0 boot error

["Ian Tobin" <itobin@xxxxxxxxxxxxx>]

Hey guys,

Sorry for the delay, been manic today.

I actually resolved this issue by messing around in the bios and enabling ACPI 
HPET Table 

Im not sure what that does but it booted straight away after that.

Maybe someone could shed some light on what it does.

Cheers

Ian


-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Pasi Kärkkäinen
Sent: 08 April 2010 19:54
To: Konto usnetu
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] XEN 4.0 boot error

On Thu, Apr 08, 2010 at 08:23:45PM +0200, Konto usnetu wrote:
>    2010/4/8 Pasi Kärkkäinen <[1]pasik@xxxxxx>
> 
>      On Wed, Apr 07, 2010 at 08:51:39PM +0100, Ian Tobin wrote:
>      >    Hey all,
>      >
>      >    Just downloaded the new Xen 4.0 and ran
>      >
>      >    Make xen
>      >    Make tools
>      >    Make stubdom
>      >
>      >    Copied the new files from dist/install
>      >    Im already running pv_ops 2.6.31.6 kernel.
>      >
>      >    When I boot i get
>      >
>      >    (XEN) Panic on CPU 0:
>      >    (XEN) IO-APIC +  timer doesn't work!
>      >
>      >    I have tried booting with noapic boot option but makes no
>      difference.  The
>      >    system worked fine on 3.4.2
>      >
>      >    CPU is AMD.
>      >
>      >    Any ideas?
>      >
> 
>      Well.. can you post a full serial console log of the boot process?
> 
>      See here for help: [2]http://wiki.xensource.com/xenwiki/XenParavirtOps
> 
>    I have the same problem to boot xen 4.0 on debian lenny 5.0,  under I
>    paste a some error:
> 
>    41.017078]   Magic number: 6:876:244
>    [   41.061177] md: Waiting for all devices to be available before
>    autodetect
>    [   41.142579] md: If you don't use raid, use raid=noautodetect
>    [   41.211225] md: Autodetecting RAID arrays.
>    [   41.260417] md: Scanned 0 and added 0 devices.
>    [   41.313729] md: autorun ...
>    [   41.347281] md: ... autorun DONE.
>    [   41.387150] Root-NFS: No NFS server available, giving up.
>    [   41.451921] VFS: Unable to mount root fs via NFS, trying floppy.
>    [   41.524664] VFS: Cannot open root device "sda1" or unknown-block(2,0)


So the disk was not detected, or did you pass wrong root= parameter? 

Please post the _full_ log.

-- Pasi

>    [   41.601913] Please append a correct "root=" boot option; here are the
>    available partitions:
>    [   41.702180] 0b00         1048575 sr0 driver: sr
>    [   41.756691] Kernel panic - not syncing: VFS: Unable to mount root fs on
>    unknown-block(2,0)
>    [   41.855912] Pid: 1, comm: swapper Not tainted 2.6.31.13 #2
>    [   41.921708] Call Trace:
>    [   41.951139]  [<c15e8386>] ? printk+0xf/0x11
>    [   42.001366]  [<c15e82ca>] panic+0x39/0xe6
>    [   42.049483]  [<c191ec2d>] mount_block_root+0x163/0x172
>    [   42.111158]  [<c1002930>] ? hypercall_page+0x930/0x1005
>    [   42.173838]  [<c191eca2>] mount_root+0x66/0x84
>    [   42.227178]  [<c191ee05>] prepare_namespace+0x145/0x16c
>    [   42.289857]  [<c191e34f>] kernel_init+0x16e/0x17d
>    [   42.346326]  [<c191e1e1>] ? kernel_init+0x0/0x17d
>    [   42.402764]  [<c1028d37>] kernel_thread_helper+0x7/0x10
> 


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