RE: [Fedora-xen] Problem booting jailtime images

[You, Yongkang]

> -----Original Message-----
> From: Murat Işık [mailto:[e-mail]]
> Sent: 2006年4月1日 4:04
> To: fedora-xen(a)redhat.com
> Cc: You, Yongkang
> Subject: RE: [Fedora-xen] Problem booting jailtime images
>
> Hello,
>
>
> [root@muratisik fedora]# cat fedora.fc4.xen.cfg
> kernel = "/boot/vmlinuz-2.6.16-1.2080_FC5xen0" 
I didn't try to use a xen0 kernel to boot xenU before. I am not sure if it is okay.
But I think you can try vmlinuz-2.6.16-1.2080_FC5xenU which comes from another Xen RPMs.

> memory = 128
> name = "fedora.fc4"
> nics = 1
> dhcp = "dhcp"
> disk = ['file:/xen/fedora/fedora.fc4.img,sda1,w',
> 'file:/xen/fedora/fedora.swap,sda2,w'] 
Although I think this config won't cause the error you meet, I suggest firstly let us
try only use 1 disk for "/" and remove the swap disk config in here and fstab.
If it can boot, then try to add swap back. :)

> root = "/dev/sda1 ro"
>
> [root@muratisik fedora]# mount -o loop fedora.fc4.img /mnt/
>
> [root@muratisik fedora]# cat /mnt/etc/fstab
> # This file is edited by fstab-sync - see 'man fstab-sync' for details
> /dev/sda1               /                       ext3    defaults 1 1
> /dev/sda2               none                    swap    sw       0 0
> none                    /dev/pts                devpts
> gid=5,mode=620 0 0
> none                    /dev/shm                tmpfs   defaults 0 0
> none                    /proc                   proc    defaults 0 0
> none                    /sys                    sysfs   defaults 0 0
>
> [root@muratisik fedora]# umount /mnt/
>
> [root@muratisik fedora]# xm create fedora.fc4.xen.cfg -c
>
> and the error appears:
>
> ...
> md: ... autorun DONE.
> VFS: Cannot open root device "sda1" or unknown-block(0,0)
> Please append a correct "root=" boot option
> Kernel panic - not syncing: VFS: Unable to mount root fs on
> unknown-block(0,0)
>  [<c011c42c>] panic+0x3c/0x190
>  [<c03c6a5c>] mount_block_root+0x19c/0x1aa
>  [<c03c6ab3>] mount_root+0x49/0x4e
>  [<c03c6b78>] prepare_namespace+0xc0/0xf1
>  [<c0102267>] init+0x23e/0x2fe
>  [<c0102029>] init+0x0/0x2fe
>  [<c01029ad>] kernel_thread_helper+0x5/0xb
>
>
> Then I changed both image's fstab to hda1 and hda2 , also editted cfg to
> match hdas. and I get the same error. any ideas? is there any more
> information (log, config, debug vs.) I can supply? 
Maybe you can try another thing. Is your image file's dev/ folder empty? If so, please
mount the xenU image file, and copy your local /dev/* to image file's dev/ . My xenU
dev/ has all device file prepared. ;)

> have a nice day.
>  

Best Regards,
Yongkang (Kangkang) 永康