Re: [Xen-users] XEN 4.0 boot error

[Pasi Kärkkäinen <pasik@xxxxxx>]

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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