Re: [PATCH, PV-GRUB DOC] Add details to PV-GRUB documentation

[Jeremy Fitzhardinge <jeremy@goop.org>]

On 03/03/2010 11:45 AM, Samuel Thibault wrote:
> Add a couple of documentation details about PV-GRUB support
>
> - the menu.lst content can be passed as a ramdisk.
> - virtual partitions are not supported.
>    

BTW, I had a problem with pvgrub with an ext4 /boot, where it hung 
indefinitely after starting.  It seemed to be spinning in a readdir loop 
on a zero-length directory entry.  The directory in question was a 
single extent.

Does pvgrub support ext4 /boot?

Thanks,
     J

> Signed-off-by: Samuel Thibault<samuel.thibault@ens-lyon.org>
>
> diff -r b8d2a4134a68 stubdom/README
> --- a/stubdom/README	Wed Mar 03 17:41:58 2010 +0000
> +++ b/stubdom/README	Wed Mar 03 20:42:53 2010 +0100
> @@ -52,11 +52,17 @@
>
>   extra = "(hd0,0)/boot/grub/menu.lst"
>
> -you can also use a tftp path (dhcp will be automatically performed):
> +or you can provide the content of a menu.lst stored in dom0 by passing it as a
> +ramdisk:
> +
> +ramdisk = "/boot/domU-1-menu.lst"
> +
> +or you can also use a tftp path (dhcp will be automatically performed):
>
>   extra = "(nd)/somepath/menu.lst"
>
> -or you can set it in option 150 of your dhcp server and leave extra empty
> +or you can set it in option 150 of your dhcp server and leave extra and ramdisk
> +empty (dhcp will be automatically performed)
>
>   Limitations
>   ===========
> @@ -69,6 +75,13 @@
>   - bootsplash is supported, but the ioemu backend does not yet support restart
>   for use by the booted kernel.
>
> +- PV-GRUB doesn't support virtualized partitions. For instance:
> +
> +disk = [ 'phy:hda7,hda7,w' ]
> +
> +will be seen by PV-GRUB as (hd0), not (hd0,6), since GRUB will not see any
> +partition table.
> +
>
>                                   Your own stubdom
>                                   ================
>
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