[Xen-users] xen4 , framebuffer and grub2

["sosogh" <sosogh@xxxxxxx>]

Hi list

 

After  I install xen4.0 in my debian squeezz,it added the following lines into /boot/grub/grub.cfg

 

### BEGIN /etc/grub.d/20_linux_xen ###

menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64 and XEN 4.0-amd64' --class debian --class gnu-linux --class gnu --class os --class xen {

        insmod part_msdos

        insmod ext2

        set root='(hd0,msdos1)'

        search --no-floppy --fs-uuid --set ae156f58-edec-4972-bd1c-d6f37a473ddd

        echo    'Loading Linux 2.6.32-5-xen-amd64 ...'

        multiboot       /boot/xen-4.0-amd64.gz placeholder  

        module  /boot/vmlinuz-2.6.32-5-xen-amd64 placeholder root=UUID=ae156f58-edec-4972-bd1c-d6f37a473ddd ro  quiet

        echo    'Loading initial ramdisk ...'

        module  /boot/initrd.img-2.6.32-5-xen-amd64

}

### END /etc/grub.d/20_linux_xen ###

 

 

 

 

 

when I started a VM created by xen , it showed errors:

   ~~~~~~~~~~~~~~~~~~~~~~~~~~| DirectFB 1.2.10 |~~~~~~~~~~~~~~~~~~~~~~~~~~

        (c) 2001-2008  The world wide DirectFB Open Source Community

        (c) 2000-2004  Convergence (integrated media) GmbH

      ----------------------------------------------------------------

(*) DirectFB/Core: Single Application Core. (2010-06-30 18:13) 

(*) Direct/Memcpy: Using Generic 64bit memcpy()

(!) Direct/Util: opening '/dev/fb0' and '/dev/fb/0' failed

    --> No such file or directory

(!) DirectFB/FBDev: Error opening framebuffer device!

(!) DirectFB/FBDev: Use 'fbdev' option or set FRAMEBUFFER environment variable.

(!) DirectFB/Core: Could not initialize 'system_core' core!

    --> Initialization error!

Could not initialize SDL - exiting

 

 

It seems that xen can not find the framebuffer device.

I have searched the web about how to enable framebuffer in grub2,someone said :

add  these two lines into /etc/default/grub  and run update-grub2 .(https://wiki.archlinux.org/index.php/GRUB2 )

GRUB_GFXMODE="1024x768x32"

GRUB_GFXPAYLOAD_LINUX="keep"

 

I have done it and reboot my server,but the problem remains.

 

My question is :

How to enable framebuffer in grub2?

Thank you!

 

 

 

 

 

 

 

2011-05-23

---

sosogh

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