Re: [Fedora-xen] [Xen-devel] Xen4.1.0 and Fedora15 Block device bug?

[Travis]

On Sat, Jul 2, 2011 at 12:15 AM, Fajar A. Nugraha <list(a)fajar.net&gt; wrote:

>  On Sat, Jul 2, 2011 at 10:50 AM, Travis <corasian(a)gmail.com&gt;
> wrote:
>  > I'm using HVM, and I've attached screenshots from the requested output
>  > (+lspci). No other OS is giving me this problem, and
>  i'm consistently able
>  > to reproduce it. What's your take?
>
>  So no block device detected, and no xen-related module loaded. That's
>  weird.
>
>  Two parts of this problem.
>
>  The first part is why would the emulated block device be missing. It
>  should still be there if PV drivers was not loaded.
>  Are you using the same dom0 (xen and dom0 kernel) and domU config file
>  for both the working F14 and F15? If yes, try:
>  - "xen_emul_unplug=never" on kernel command line. See
>  http://www.kernel.org/doc/Documentation/kernel-parameters.txt
>  - make sure you use "hda" on domU config file
>
>  Awesome, the "xen_emul_unplug=never" arg fixed it. I tossed it in and it
booted up and installed just fine. Thanks!!! And the doc you linked
is definitely going in my sysadmin toolbox. Sweet!



>  Second part, F15's boot/config-2.6.38.6-26.rc1.fc15.x86_64 has
> these
>  entries:
>  CONFIG_XEN_PLATFORM_PCI=m
>  CONFIG_XEN_BLKDEV_FRONTEND=m
>
>  So if you could add xen-platform-pci.ko and xen-blkfront.ko to the
>  install initrd, you should be able to use PV drivers directly. Not
>  sure what's the easiest way to do it though (maybe unpack initrd, add
>  some files, and repack it).
>  
I had tried the fed15 rawhide version from fedora's virtualization-xendomu
test day (april) last night, and it includes the support (it reads the v
disk as a xen device, even) so hopefully it will be polished up (it was
quite a bit rough looking still) and pushed out in the next release/update.


>  --
>  Fajar
>