Your kernel can't find its rootfs. You must specify this correctly in
the domU configuration file.
Sander
On Wed, May 03, 2006 at 05:59:18PM +0100, Shabs wrote:
> Hi all
>
> Finally got xm create to do something (intention was to simply create a
> simple VM), but it doesn't hang around for more than a few secs:
>
> Now it produces a kernel panic which I think has something to do with
> grub.conf??
>
> Can anyone help? Thanks in advance.
>
> See last 2 lines of output:
>
> [root@localhost xen]# xm create sr-config1 -c vmid=1
> Using config file "sr-config1".
> Started domain VM1
> Linux version 2.6.16-xen3_86.1_fc4 (rread@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx)
> (gcc version 4.0.1 20050727 (Red Hat 4.0.1-5)) #1 SMP Thu Apr 13 08:26:52 PDT
> 2006
> BIOS-provided physical RAM map:
> Xen: 0000000000000000 - 0000000004000000 (usable)
> 0MB HIGHMEM available.
> 72MB LOWMEM available.
> ACPI in unprivileged domain disabled
> IRQ lockup detection disabled
> Built 1 zonelists
> Kernel command line: ip=:1.2.3.4:::vm1:eth0:dhcp root=/dev/hda1 ro 4 VMID=1
> usr=/dev/hda1
> Enabling fast FPU save and restore... done.
> Enabling unmasked SIMD FPU exception support... done.
> Initializing CPU#0
> PID hash table entries: 512 (order: 9, 8192 bytes)
> Xen reported: 2391.142 MHz processor.
> Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
> Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
> Software IO TLB disabled
> vmalloc area: c5000000-fb7fe000, maxmem 33ffe000
> Memory: 61016k/73728k available (2188k kernel code, 4452k reserved, 681k
> data, 168k init, 0k highmem)
> Checking if this processor honours the WP bit even in supervisor mode... Ok.
> Calibrating delay using timer specific routine.. 4785.88 BogoMIPS
> (lpj=23929449)
> Security Framework v1.0.0 initialized
> Capability LSM initialized
> Mount-cache hash table entries: 512
> CPU: Trace cache: 12K uops, L1 D cache: 8K
> CPU: L2 cache: 512K
> Checking 'hlt' instruction... OK.
> Brought up 1 CPUs
> migration_cost=0
> Grant table initialized
> NET: Registered protocol family 16
> Brought up 1 CPUs
> PCI: setting up Xen PCI frontend stub
> ACPI: Subsystem revision 20060127
> ACPI: Interpreter disabled.
> Linux Plug and Play Support v0.97 (c) Adam Belay
> xen_mem: Initialising balloon driver.
> usbcore: registered new driver usbfs
> usbcore: registered new driver hub
> PCI: System does not support PCI
> PCI: System does not support PCI
> IA-32 Microcode Update Driver: v1.14-xen <tigran@xxxxxxxxxxx>
> VFS: Disk quotas dquot_6.5.1
> Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
> Initializing Cryptographic API
> io scheduler noop registered
> io scheduler anticipatory registered (default)
> io scheduler deadline registered
> io scheduler cfq registered
> PNP: No PS/2 controller found. Probing ports directly.
> i8042.c: No controller found.
> RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
> Xen virtual console successfully installed as tty1
> Event-channel device installed.
> blkif_init: reqs=64, pages=704, mmap_vstart=0xc3c00000
> netfront: Initialising virtual ethernet driver.
> Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
> ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
> Registering block device major 3
> ide-floppy driver 0.99.newide
> usbmon: debugfs is not available
> usbcore: registered new driver libusual
> mice: PS/2 mouse device common for all mice
> NET: Registered protocol family 2
> IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
> TCP established hash table entries: 4096 (order: 3, 32768 bytes)
> TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
> TCP: Hash tables configured (established 4096 bind 4096)
> TCP reno registered
> Initializing IPsec netlink socket
> NET: Registered protocol family 1
> NET: Registered protocol family 17
> NET: Registered protocol family 8
> NET: Registered protocol family 20
> Using IPI No-Shortcut mode
> Kernel panic - not syncing: VFS: Unable to mount root fs on
> unknown-block(3,1)
> [root@localhost xen]#
>
--
"True, but until we get off our butts and write it, we have to use
something" -- markwalling on /.
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