Hey,
I'm trying to do some work with flicker, and it's my understanding that this
software requires tboot and a 32-bit non-PAE kernel, but I haven't been able to
find any help on setting up tboot with a kernel that matches these
requirements. (Additionally, I'd like to be able to use GRUB2 as I don't have
any experience with GRUB)
If anyone could point me to a kernel that fits these requirements and that
could be set up relatively easily with tboot, I'd appreciate it.
Currently I have the following set up:
Lenovo W520
Fedora 17 32-bit
Custom built 32 bit kernel based on vmlinuz-3.5.4 with TXT options enabled and
PAE disabled (I think) @/boot/vmlinuz-3.5.4-txt
tboot 1.7.1 @/boot/tboot.gz
2nd_gen_i5_i7-SINIT_51 module @/SINIT_51.bin
The following GRUB2 menu entry:
menuentry 'Fedora 17 32-bit with tboot'{
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd0,msdos4)'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos4
--hint-efi=hd0,msdos4 --hint-baremetal=ahci0,msdos4 --hint='hd0,msd
os4' f5b2de9b-74da-4ac9-8345-b99dde1b46a0
else
search --no-floppy --fs-uuid --set=root
f5b2de9b-74da-4ac9-8345-b99dde1b46a0
fi
echo 'Loading tboot multiboot...'
multiboot /boot/tboot.gz /boot/tboot.gz logging=vga,memory,serial
echo 'Loading Fedora (3.5.4-txt)'
module /boot/vmlinuz-3.5.4-txt/ boot/vmlinuz-3.5.4-txt
root=UUID=f5b2de9b-74da-4ac9-8345-b99dde1b46a0 ro rd.md=0 rd.lvm=0 rd.dm=0 S
YSFONT=True KEYTABLE=us rd.luks=0 LANG=en_US.UTF-8 rhgb
echo 'Loading initial ramdisk ...'
module /boot/initramfs-3.5.4-txt.img /boot/initramfs-3.5.4-txt.img
echo 'Loading SINIT module...'
module /SINIT_51.BIN /SINIT_51.BIN
}
(Most of this is taken from the functional menuentry that boots into Fedora 17
with the custom kernel without tboot)
When I select this menu entry, the TBOOT setup seems to complete successfully,
but after a bunch of [TBOOT] text flies by, the screen goes black for a second
and the system loses power and reboots. My intuition is that when TBOOT tries
to transfer control to the host OS, there is some failure that causes a crash,
but there is no memory dump or kernel panic displayed on screen. If anybody
could provide any insight into what's wrong with my setup, or point me towards
a kernel/distro that might be easier to build, I'd appreciate it.
PS when booting into the custom kernel without tboot, everything works except
for Wi-Fi, as far as I can tell.
I was also previously able to boot into a 64-bit linux mint distro with tboot
and xen, but when I tried to use a 32-bit kernel/distro I got some kernel panic
about not being able to establish the dom0 kernel. I read that linux kernels
after ~2.35 could boot directly from tboot without xen, so I've been trying to
leave it out since then, but I don't mind using it if I need to.
Thanks in advance for any help,
Ren
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