Le 13/01/2026 à 07:15, Juergen Gross a écrit :
On 12.01.26 23:44, Alexandre GRIVEAUX wrote:
Update files exemples PV&PVH for non direct kernel boot with pygrub.
Signed-off-by: Alexandre GRIVEAUX <[email protected]>
---
tools/examples/xlexample.pvhlinux | 3 +++
tools/examples/xlexample.pvlinux | 3 +++
2 files changed, 6 insertions(+)
diff --git a/tools/examples/xlexample.pvhlinux
b/tools/examples/xlexample.pvhlinux
index 18305b80af..2bdd43c2c5 100644
--- a/tools/examples/xlexample.pvhlinux
+++ b/tools/examples/xlexample.pvhlinux
@@ -25,6 +25,9 @@ kernel = "/boot/vmlinuz"
# Kernel command line options
extra = "root=/dev/xvda1"
+# Enable to use a grub2 emulation inside guest instead of direct
kernel boot.
I don't think this is correct.
pygrub is running in dom0, not in the guest.
Juergen
Hello,
I doesn't understand your reply, yes pygrub is running on the Dom0, and
this goal is to behave like there is a grub2 on the DomU.
My wording seem too confuse for you ? You would like this:
Enable to use a "grub2 emulation inside guest" instead of direct kernel
boot.
Or
Enable to use a emulation of grub2 inside guest instead of direct kernel
boot.
Or
Enable to use a emulation of grub2 for guest instead of direct kernel boot.
For me, using wiktionary:
emulate (computing <https://en.wiktionary.org/wiki/computing#Noun>) of a
program or device: to imitate another program or device
And according to man page of xl.cfg:
*bootloader="PROGRAM"*
<https://manpages.debian.org/trixie/xen-utils-common/xl.cfg.5.en.html#bootloader=_PROGRAM_>
Run "PROGRAM" to find the kernel image and ramdisk to use.
Normally "PROGRAM" would be "pygrub", which is an emulation of
grub/grub2/syslinux. Either *kernel* or *bootloader* must be
specified for PV guests.
And when using it like with a lx start -c <name>.cfg, one of the screen
will welcome an user with pygrub.
Thanks.
