On Thu, Jun 15, 2006 at 12:38:21PM -0600, Eric W. Biederman wrote: > Vivek Goyal <[EMAIL PROTECTED]> writes: > > > On Wed, Jun 14, 2006 at 11:13:27AM -0600, Eric W. Biederman wrote: > > > > Somehow my previous mail did not make to the mailing list. Trying it > > again. > > > >> > >> > Other than that, I think that yes you should be able to use kexec to > >> > bootstrap into any kind of kernel (or code running in real mode). > >> > Certainly linux->xen is possible (and with patches I have posted > >> > to xen-devel, xen->xen and xen->linux, though thats not really relevant), > >> > so its not restricted to booting linux. > >> > >> Correct. > >> > >> Most BIOS's get confused after the kernel has run so after 16bit BIOS > >> calls can be a problem. I have a test image called kexec_test from > >> when I was really trying to get the 16bit mode with BIOS calls to > >> work. > >> > > > > Eric, I got a little unrelated question. Does that mean that we can not > > use BIOS services at during transition to the new kernel. I was thinking > > of using "Int 10" for setting the video mode during transition. > > We can't do that reliably in the normal kexec case, and definitely not > in the kdump case.
Another question. How are kexec and kdump different when it comes to BIOS services. BIOS is equally likely to get confused while running 16bit calls. Thanks Vivek _______________________________________________ fastboot mailing list [email protected] https://lists.osdl.org/mailman/listinfo/fastboot
