Re: [Xen-devel] Fedora Core 17 Xorg can't use /dev/fb0 when using Cirrus Logic VGA or Xen PVFB driver, Was:Re: irq problem with 3.3-rc3 on guest

[M A Young <m.a.young@xxxxxxxxxxxx>]

On Wed, 28 Mar 2012, Konrad Rzeszutek Wilk wrote:

> So with extra="console=hvc0 loglevel=8 
> root=live:http://build/tftpboot/f17-i386/LiveOS/squashfs.img";
>
> I was able to succesfully install, but booting proved interestingly.
>
> When trying the 'pygrub' it would complain about the 'No OS loader', but if I 
> ran
> it on the disk (pygrub /dev/vg_guest/f17_32) it would extract the payload 
> properly.
> (This is with xen-4.1.2-6.fc16). So I worked around by taking those images
> directly:
>
> kernel="/var/run/xend/boot/boot_kernel.jIsJmr"
> ramdisk="/var/run/xend/boot/boot_ramdisk.I4rBjo"
> extra="root=/dev/mapper/vg_f17-lv_root ro rd.md=0 rd.lvm.lv=vg_f17/lv_swap 
> SYSFONT=True  KEYTABLE=us rd.lvm.lv=vg_f17/lv_root rd.luks=0 LANG=en_US.UTF-8 
> rd.dm=0"
pygrub works for me via xl. It may be a result of how you are booting the 
guest.
> And when booting F17 either as HVM or PV, in both cases I got Xorg to
> tell me:
>
> (EE) FBDEV(0): FBIOBLANK: Invalid argument
>
> and freeze.
That seems to be harmless. However I do get the "an error has occurred" 
message instead of the gdm login screen though until I removed the fprintd 
package (and the dependent fprintd-pam package).
        Michael Young

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