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xen-devel
Re: [Xen-devel] [PATCH, PV-GRUB DOC] Add details to PV-GRUB documentatio
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@xxxxxxxxxxxx>
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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