Re: [Xen-devel] Problem on FC3

Keir Fraser
Tue, 16 Nov 2004 09:27:29 -0000

Your GRUB config is wrong -- it should specify
''root=/dev/hdc5'', not
sdc5.

 -- Keir

> I''m getting a VFS kernel panic when trying to booting to FC3 from
Xen.
> Its the one that says I must supply a valid "root=" option.
(sorry I
> don''t have it verbatim.)
>
> I''m using the xen-2.0 binary installer, kernel 2.6.9.  I am using
> ext3fs, but I am fairly certain that I have compiled support into the
> kernel. (I''ve tired compile xen from the 2.0 and nighltly source
too :-).
>
> I''ve tired Keir''s suggestions but to no avail...
I''m fairly new to
> linux, but not to unix.  I''m just don''t know what to try
next.
>
> Suggestions?
>
> Here''s my setup:
>
> Device Boot
> /dev/hdc1
> /dev/hdc2            FreeBSD
> /dev/hdc3            FC3 Boot (ext3fs)
> /dev/hdc4            Extended
> /dev/hdc5            FC3 Root (ext3fs)
> /dev/hdc6            FC 3 swap
>
> I''ve also got other partitions.
>
> Grub.conf:
>
> default=0
> timeout=5
> splashimage=(hd1,2)/grub/splash.xpm.gz
> hiddenmenu
>
> title Xen 2.6 / XenLinux
>         kernel /xen.gz dom0_mem=131072 console=vga
>         module/vmlinuz-2.6.9-xen0 root=/dev/sdc5 ro console=tty0
>         module /initrd-fc3.img
> title Fedora Core (2.6.9-1.667)
>         root (hd1,2)
>         kernel /vmlinuz-2.6.9-1.667 ro root=LABEL=/ rhgb quiet
>         initrd /initrd-2.6.9-1.667.img
>
> Contents of  boot partition, root(hd1,2):
>
> -rw-r--r--  1 root root   50929 Nov  2 11:53 config-2.6.9-1.667
> -rw-r--r--  1 root root   22966 Nov 15 21:49 config-2.6.9-xen0
> -rw-r--r--  1 root root   10151 Nov 15 21:49 config-2.6.9-xenU
> -rw-r--r--  1 root root  487036 Nov 12 17:24 initrd-2.6.9-1.667.img
> -rw-r--r--  1 root root 348 Nov 15 13:35 initrd-fc3.img
> -rw-r--r--  1 root root  714266 Nov  2 11:53 System.map-2.6.9-1.667
> -rw-r--r--  1 root root  609835 Nov 15 21:49 System.map-2.6.9-xen0
> -rw-r--r--  1 root root  397977 Nov 15 21:49 System.map-2.6.9-xenU
> -rw-r--r--  1 root root 4862527 Nov 15 21:49 vmlinux-syms-2.6.9-xen0
> -rw-r--r--  1 root root 2718941 Nov 15 21:49 vmlinux-syms-2.6.9-xenU
> -rw-r--r--  1 root root 1405861 Nov  2 11:53 vmlinuz-2.6.9-1.667
> -rw-r--r--  1 root root 1807764 Nov 15 21:49 vmlinuz-2.6.9-xen0
> -rw-r--r--  1 root root 1017813 Nov 15 21:49 vmlinuz-2.6.9-xenU
> lrwxrwxrwx  1 root root      18 Nov 15 21:49 xenolinux.gz ->
> vmlinuz-2.6.9-xen0
>
>
>
>
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