Hi,

Xen now looks for a section with name '__xen_guest' starting from a second
section.
A simple workaround is to make two '__xen_guest' sections (with a small
patch of xenelf.c):

diff -r xen/mkfile xen2/mkfile
105c107,108
<       ./xenelf.$cputype $target.elf $target __xen_guest ''$XENELF''
---
>       ./xenelf.$cputype $target.elf $target.elf2 __xen_guest ''$XENELF''
>       ./xenelf.$cputype $target.elf2 $target __xen_guest ''$XENELF''
diff -r xen/xenelf.c xen2/xenelf.c
131c131,132
<       ns = 0; //GETS(&e.shnum);
---
>       ns = GETS(&e.shnum);

I run it on Xen 4.10.3

On Fri, Jul 5, 2019 at 9:25 AM Alexander Kapshuk <
alexander.kapshuk@gmail.com> wrote:

> I had Plan 9 running on Xen 7.5. After upgrading to Xen 8.0 Plan 9
> won't boot any more.
> I get a 'No bootable device' message displayed.
>
> The system was previously setup by someone else.
> If I can, I would like to try and make it run on Xen 8.0.
>
> Any tips would be much appreciated.
>
>

--
Best regards,
  Alexander