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Re: [Xen-users] Xen kernel booting to black screen.


  • To: Alexandre Kouznetsov <alk@xxxxxxxxxx>, "xen-users@xxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxx>
  • From: Joshua Tuttle <jtuttle@xxxxxxxxx>
  • Date: Fri, 14 Jun 2013 17:19:40 +0000
  • Accept-language: en-US
  • Delivery-date: Fri, 14 Jun 2013 17:21:05 +0000
  • List-id: Xen user discussion <xen-users.lists.xen.org>
  • Thread-index: Ac5pESmn/Sal+zOrSMO4mISICo0MuwACoN6AAAHnX5A=
  • Thread-topic: [Xen-users] Xen kernel booting to black screen.

Here is my grub.cfg



#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  load_env
fi
set default="0"
if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}

function load_video {
  insmod efi_gop
  insmod efi_uga
  insmod video_bochs
  insmod video_cirrus
}

insmod part_gpt
insmod ext2
set root='(hd0,gpt2)'
search --no-floppy --fs-uuid --set=root 19b1104e-506f-4101-a8bb-9e1234c7161a
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=640x480
  load_video
  insmod gfxterm
  insmod part_gpt
  insmod ext2
  set root='(hd0,gpt2)'
  search --no-floppy --fs-uuid --set=root 19b1104e-506f-4101-a8bb-9e1234c7161a
  set locale_dir=($root)/boot/grub/locale
  set lang=en_US
  insmod gettext
fi
terminal_output gfxterm
set timeout=5
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=cyan/blue
set menu_color_highlight=white/blue
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/08_linux_xen ###
submenu "Xen 4.1-amd64" {
menuentry 'Debian GNU/Linux, with Xen 4.1-amd64 and Linux 3.2.0-4-amd64' 
--class debian --class gnu-linux --class gnu --class os --class xen {
        insmod part_gpt
        insmod ext2
        set root='(hd0,gpt2)'
        search --no-floppy --fs-uuid --set=root 
19b1104e-506f-4101-a8bb-9e1234c7161a
        echo    'Loading Xen 4.1-amd64 ...'
        multiboot       /boot/xen-4.1-amd64.gz placeholder
        echo    'Loading Linux 3.2.0-4-amd64 ...'
        module  /boot/vmlinuz-3.2.0-4-amd64 placeholder 
root=UUID=19b1104e-506f-4101-a8bb-9e1234c7161a ro  quiet nomodeset
        echo    'Loading initial ramdisk ...'
        module  /boot/initrd.img-3.2.0-4-amd64
}
menuentry 'Debian GNU/Linux, with Xen 4.1-amd64 and Linux 3.2.0-4-amd64 
(recovery mode)' --class debian --class gnu-linux --class gnu --class os 
--class xen {
        insmod part_gpt
        insmod ext2
        set root='(hd0,gpt2)'
        search --no-floppy --fs-uuid --set=root 
19b1104e-506f-4101-a8bb-9e1234c7161a
        echo    'Loading Xen 4.1-amd64 ...'
        multiboot       /boot/xen-4.1-amd64.gz placeholder
        echo    'Loading Linux 3.2.0-4-amd64 ...'
        module  /boot/vmlinuz-3.2.0-4-amd64 placeholder 
root=UUID=19b1104e-506f-4101-a8bb-9e1234c7161a ro single
        echo    'Loading initial ramdisk ...'
        module  /boot/initrd.img-3.2.0-4-amd64
}
}
### END /etc/grub.d/08_linux_xen ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Debian GNU/Linux, with Linux 3.2.0-4-amd64' --class debian --class 
gnu-linux --class gnu --class os {
        load_video
        insmod gzio
        insmod part_gpt
        insmod ext2
        set root='(hd0,gpt2)'
        search --no-floppy --fs-uuid --set=root 
19b1104e-506f-4101-a8bb-9e1234c7161a
        echo    'Loading Linux 3.2.0-4-amd64 ...'
        linux   /boot/vmlinuz-3.2.0-4-amd64 
root=UUID=19b1104e-506f-4101-a8bb-9e1234c7161a ro  quiet nomodeset
        echo    'Loading initial ramdisk ...'
        initrd  /boot/initrd.img-3.2.0-4-amd64
}
menuentry 'Debian GNU/Linux, with Linux 3.2.0-4-amd64 (recovery mode)' --class 
debian --class gnu-linux --class gnu --class os {
        load_video
        insmod gzio
        insmod part_gpt
        insmod ext2
        set root='(hd0,gpt2)'
        search --no-floppy --fs-uuid --set=root 
19b1104e-506f-4101-a8bb-9e1234c7161a
        echo    'Loading Linux 3.2.0-4-amd64 ...'
        linux   /boot/vmlinuz-3.2.0-4-amd64 
root=UUID=19b1104e-506f-4101-a8bb-9e1234c7161a ro single
        echo    'Loading initial ramdisk ...'
        initrd  /boot/initrd.img-3.2.0-4-amd64
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###

-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxx] 
On Behalf Of Alexandre Kouznetsov
Sent: Friday, June 14, 2013 12:25 PM
To: xen-users@xxxxxxxxxxxxx
Subject: Re: [Xen-users] Xen kernel booting to black screen.

Hello.

Please post the relevant section from your Grub config, just to make sure it's 
consistent.

El 14/06/13 10:53, Joshua Tuttle escribió:
> I am using Xen 4.1.4 downloaded from apt-get with Debian 7.0 "Wheezy".
> Debian boots fine, but when I try to select the Xen kernel in grub, it
> just boots to a black screen. The only text that comes up before the
> black screen is "loading initial ramdisk"
Can you see the Xen's booting output, before it attempts to load Dom0's kernel?
Does your machine respond via network a while after booting?

> I have tried placing "nomodeset" as a kernel parameter, but have had
> no luck with it.
To discard video mode problems, you may try "vga=normal" kernel parameter, it's 
the most fail-safe, AFAIK,

Greetings.

--
Alexandre Kouznetsov


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