Re: [Xci-devel] dom0 can't find the LVM volumes

[Jean Guyader <jean.guyader@xxxxxxxxx>]

2009/10/13 Andreas Sommer <AndiDog@xxxxxx>:
>
> Jean Guyader wrote:
>
> 2009/10/12 Andreas Sommer <AndiDog@xxxxxx>:
>
>
> I seem to have installed XCI correctly, as GRUB 2 starts up correctly (and
> is thus able to read the LVM volumes). When choosing "XenClient - Debug", I
> get a black screen and the following serial output from the kernel (only
> last few lines):
>
> [...]
> (XEN) PCI add device 00:07.1
> [    5.658814] scsi0 : ata_piix
> [    5.662493] scsi1 : ata_piix
> [    5.664950] ata1: PATA max UDMA/33 cmd 0x1f0 ctl 0x3f6 bmdma 0x1050 irq
> 14
> [    5.669041] ata2: PATA max UDMA/33 cmd 0x170 ctl 0x376 bmdma 0x1058 irq
> 15
> [    5.856501] ata2.00: ATAPI: VMware Virtual IDE CDROM Drive, 00000001, max
> UDMA/33
> [    5.876581] ata2.00: configured for UDMA/33
> [    5.880579] scsi 1:0:0:0: CD-ROM            NECVMWar VMware IDE CDR10
> 1.00 PQ: 0 ANSI: 5
> [    5.887773] sr0: scsi3-mmc drive: 1x/1x xa/form2 cdda tray
> [    5.890023] Uniform CD-ROM driver Revision: 3.20
> [    5.894313] mice: PS/2 mouse device common for all mice
> [    5.898252] device-mapper: ioctl: 4.14.0-ioctl (2008-04-23) initialised:
> dm-devel@xxxxxxxxxx
> [    5.901753] TCP cubic registered
> [    5.903076] NET: Registered protocol family 17
> [    5.905711] RPC: Registered udp transport module.
> [    5.908039] RPC: Registered tcp transport module.
> [    5.910043] 802.1Q VLAN Support v1.8 Ben Greear <greearb@xxxxxxxxxxxxxxx>
> [    5.912887] All bugs added by David S. Miller <davem@xxxxxxxxxx>
> [    5.915119] Using IPI No-Shortcut mode
> [    5.918187] BIOS EDD facility v0.16 2004-Jun-25, 1 devices found
> [    5.921295] Freeing unused kernel memory: 260k freed
>   Reading all physical volumes.  This may take a while...Waiting for device
> to settle...ln: /sbin/mdev: File exists  Reading all physical volumes.  This
> may take a while...Waiting for device to settle...ln: /sbin/mdev: File
> exists  Reading all physical volumes.  This may take a while...Waiting for
> device to settle...ln: /sbin/mdev: File exists  Reading all physical
> volumes.  This may take a while...Try to mount /dev/mapper/xenclient-root
> ...mount: mounting /dev/mapper/xenclient-root on /root failed: No such file
> or directoryswitch_root: bad newroot /root[   19.405270] Kernel panic - not
> syncing: Attempted to kill init!
>
> The LVM is found immediately by a Debian live CD, but XenClient's kernel
> doesn't seem to find it... What could be the problem here?
>
>
>
>
> Hi,
>
> It's probably because we don't have disk driver for VmWare in our dom0
> kernel config.
>
> Jean
>
>
>
> Yes I think you're right, as the kernel doesn't show any "sd: " messages. In
> the dom0 /lib/modules folder, there are neither the scsi nor the sd module.
>
> Could you please give me a hint on how to change the dom0 kernel
> configuration (menuconfig) and rebuild it?
>

Sure.

$ (cd build_i686/build-linux-dom0-2.6.27 && make menuconfig )
$ rm build_i686/build-linux-dom0-2.6.27/.compiled
$ make xenclient-kernel

Jean

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