In default config, blkfront is built in the kernel. So there is no xenblk.ko in
modules.
Do I have to make it as a module?
Thanks.
BTW: This is copied from menuconfig of XenU kernel:
[ ] Privileged Guest (domain 0)
< > Backend driver support
<*> Block-device frontend driver
<*> Network-device frontend driver
[*] Scrub memory before freeing it to Xen
[*] Disable serial port drivers
<*> Export Xen attributes in sysfs
Xen version compatibility (3.0.2 and later) --->
======= 2006-12-13 02:39:04 you wrote:=======
>you can find the module in
>/lib/modules/<kernelversion>/kernel/drivers/xen/blkfront
>for me it's here :
>/lib/modules/2.6.18-1.2798.fc6xen/kernel/drivers/xen/blkfront/xenblk.ko
>
>copy that file to /initrd/lib
>then add insmod /lib/xenblk.ko to the init file
>
>re-create the initrd file from your /initrd directory, and change the VM
>config to use this initrd, instead of the one in /boot.
>
>
>
>
>Zhang Binbin wrote:
>
>>Thanks for your suggestion!
>>I changed initrd for DomU, and lvm problem has been resolved.
>>but kernel still panic when creating DomU:
>>
>>================================================================================================
>># xm create domUconfig
>>Using config file "dom1_config".
>>Started domain Dom1
>>Bootdata ok (command line is root=/dev/hda1,ro)
>>Linux version 2.6.16.29-xen (root@xxxxxxxxxxxxxxxxxxxxx) (gcc version 3.4.6
>>20060404 (Red Hat 3.4.6
>>
>>-3)) #3 SMP Tue Dec 12 15:59:19 CST 2006
>>BIOS-provided physical RAM map:
>> Xen: 0000000000000000 - 0000000010800000 (usable)
>>No mptable found.
>>Built 1 zonelists
>>Kernel command line: root=/dev/hda1,ro
>>Initializing CPU#0
>>PID hash table entries: 2048 (order: 11, 65536 bytes)
>>Xen reported: 1862.322 MHz processor.
>>Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
>>Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
>>Software IO TLB disabled
>>Memory: 249944k/270336k available (2000k kernel code, 11868k reserved, 883k
>>data, 172k init)
>>Calibrating delay using timer specific routine.. 3726.62 BogoMIPS
>>(lpj=18633142)
>>Security Framework v1.0.0 initialized
>>Capability LSM initialized
>>Mount-cache hash table entries: 256
>>CPU: L1 I cache: 32K, L1 D cache: 32K
>>CPU: L2 cache: 2048K
>>CPU: Physical Processor ID: 0
>>CPU: Processor Core ID: 0
>>Brought up 1 CPUs
>>migration_cost=0
>>checking if image is initramfs... it is
>>Freeing initrd memory: 2141k freed
>>DMI not present or invalid.
>>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
>>pnp: PnP ACPI: disabled
>>xen_mem: Initialising balloon driver.
>>SCSI subsystem initialized
>>PCI: System does not support PCI
>>PCI: System does not support PCI
>>IA-32 Microcode Update Driver: v1.14-xen <tigran@xxxxxxxxxxx>
>>IA32 emulation $Id: sys_ia32.c,v 1.32 2002/03/24 13:02:28 ak Exp $
>>audit: initializing netlink socket (disabled)
>>audit(1165911995.790:1): initialized
>>VFS: Disk quotas dquot_6.5.1
>>Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
>>Initializing Cryptographic API
>>io scheduler noop registered
>>io scheduler anticipatory registered
>>io scheduler deadline registered
>>io scheduler cfq registered (default)
>>rtc: IRQ 8 is not free.
>>Non-volatile memory driver v1.2
>>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
>>loop: loaded (max 8 devices)
>>Xen virtual console successfully installed as tty1
>>Event-channel device installed.
>>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
>>netfront: device eth0 has flipping receive path.
>>mice: PS/2 mouse device common for all mice
>>md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
>>md: bitmap version 4.39
>>NET: Registered protocol family 2
>>IP route cache hash table entries: 4096 (order: 3, 32768 bytes)
>>TCP established hash table entries: 16384 (order: 6, 262144 bytes)
>>TCP bind hash table entries: 16384 (order: 6, 262144 bytes)
>>TCP: Hash tables configured (established 16384 bind 16384)
>>TCP reno registered
>>NET: Registered protocol family 1
>>NET: Registered protocol family 17
>>Red Hat nash version 4.2.1.8 starting
>>Mounted /proc filesystem
>>Mounting sysfs
>>Creating /dev
>>Starting udev
>>Loading sd_mod.ko module
>>Loading libata.ko module
>>Loading ahci.ko module
>>Loading ata_piix.ko module
>>Loading ide-disk.ko module
>>Loading dm-mod.ko module
>>device-mapper: 4.5.0-ioctl (2005-10-04) initialised: dm-devel@xxxxxxxxxx
>>Loading jbd.ko module
>>Loading ext3.ko module
>>Creating root device
>>Mounting root filesystem
>>mount: error 6 mounting ext3
>>mount: error 2 mounting none
>>Switching to new root
>>switchroot: mount failed: 22
>>umount /initrd/dev failed: 2
>>Kernel panic - not syncing: Attempted to kill init!
>>================================================================================================
>>
>>I decompressed the initrd-xenU, this is init script:
>>================================================================================================
>>#!/bin/nash
>>mount -t proc /proc /proc
>>setquiet
>>echo Mounted /proc filesystem
>>echo Mounting sysfs
>>mount -t sysfs none /sys
>>echo Creating /dev
>>mount -o mode=0755 -t tmpfs none /dev
>>mknod /dev/console c 5 1
>>mknod /dev/null c 1 3
>>mknod /dev/zero c 1 5
>>mkdir /dev/pts
>>mkdir /dev/shm
>>echo Starting udev
>>/sbin/udevstart
>>echo -n "/sbin/hotplug" > /proc/sys/kernel/hotplug
>>echo "Loading libata.ko module"
>>insmod /lib/libata.ko
>>echo "Loading ahci.ko module"
>>insmod /lib/ahci.ko
>>echo "Loading ata_piix.ko module"
>>insmod /lib/ata_piix.ko
>>echo "Loading dm-mod.ko module"
>>insmod /lib/dm-mod.ko
>>/sbin/udevstart
>>echo Creating root device
>>mkrootdev /dev/root
>>umount /sys
>>echo Mounting root filesystem
>>mount -o defaults --ro -t ext3 /dev/root /sysroot
>>mount -t tmpfs --bind /dev /sysroot/dev
>>echo Switching to new root
>>switchroot /sysroot
>>umount /initrd/dev
>>================================================================================================
>>And there is no xenbk module in /initrd/lib/.
>>where can I find it please?
>>
>>Thanks.
>>
>>======= 2006-12-12 17:51:41 you wrote:=======
>>
>>
>>
>>>>I did figure out the howtos of mkinird and the ramdisk concepts, the
>>>>problem is I do not know what to put/modify inside to make it work.
>>>>This is very frustrating.
>>>>
>>>>
>>>>
>>>Try adding insmod xenbk to the init script in the initrd. You will have
>>>to copy that module into the /lib directory of the initrd as well.
>>>I believe the fc6 xen kernel has the back end block driver compiled as a
>>>module, and because dom0 doesn't need this module, it's not in the dom0
>>>initrd.
>>>
>>>Greetz,
>>>
>>>Mark
>>>
>>>
>>>_______________________________________________
>>>Xen-users mailing list
>>>Xen-users@xxxxxxxxxxxxxxxxxxx
>>>http://lists.xensource.com/xen-users
>>>
>>>
>>>
>>
>>= = = = = = = = = = = = = = = = = = = =
>>
>>
>>
>>
>>
>>
>>
>
= = = = = = = = = = = = = = = = = = = =
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