[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
ThinkPad P72 progress update
In late November I invested (heavily) in a Lenovo ThinkPad P72 mobile
workstation to replace my deceased ThinkPad W700. Like the W700, the P72
came full of leading (bleeding?) edge features and nuggets, among which
are a pair of 2T NVMe SSDs connected to an Intel RST RAID controller, an
NVIDIA Quadro P5200 video, and a 4K display.
My original plan was to do a forensic bare metal backup of the factory
installed Windows 10 Professional, split the RAID1 configuration, install
F29 on the first SSD and import Windows 10 to a VM running under F29. As
they say, even the best plans go right out the window five minutes after
the battle begins.
As I reported earlier, I ran into trouble almost immediately. The Intel
RST RAID controller cannot be accessed by any commonly known backup
software. After much research, I found that the BIOS supports two access
modes for the Intel RST chip: native RST and an AHCI/SATA emulation mode.
Linux can't see the Windows-only RST mode at all. Linux can see SATA with
mdadm, but there is no common ground between the two. Fedora really really
wants to use mdadm. So if I want to installed a native F29 on this system,
I have to give it a SATA hard drive. The RAID1 and RST mode must go.
Bear in mind that when I flip that switch in the BIOS, the factory
installed Windows 10 Professional will vaporize and I will be left with
two 2T NVMe SSDs running in emulated SATA mode. This will certainly be
slower than the native NVMe interface, but I really have no other choice.
To see if F29 would even run on the P72, I tried booting it from a DVD
containing the F29 Workstation ISO image. That failed. I made a thumb
drive with the same ISO image, and that too failed. In each case I got a
black screen after the GNOME display manager started. Research said a
change was needed in a BIOS Display setting for the P5200 chip. I had to
change a [HYBRID] Windows-only speed hack over to [DISCRETE] so F29 could
actually see the true PCI interface.
I hit F10 save and rebooted into runlevel 3, which it (miraculously?) just
did. For 126 seconds. Then it threw an error which I promptly transcribed
and sent off to the thinkpad_acpi maintainer:
I got this error on my new Lenovo ThinkPad P72 mobile workstation just 126
seconds after booting the Fedora 29 Workstation live DVD from a thumb
drive in runlevel 3 (text only). This is a manual transcription of the
Fedora 29 (Workstation Edition)
Kernel 4.10.16-300.fc29.x86_64 on an x86_64 (tty1)
localhost login: [ 41.103546] L1TF CPU bug present and SMT on, data
leak possible. See CVE-2018-3646 and
https://www.kernel.org/doc/html/latest/admin-guide/l1tf.html for details
[root@localhost ~]# ls -al
dr-xr-x---. 3 root root 4096 Feb 8 22:31 .
dr-xr-xr-x. 18 root root 4096 Feb 8 22:31 ..
-rw-------. 1 root root 12502 Oct 24 20:03 anaconda-ks.cfg
-rw-r--r--. 1 root root 18 Jul 15 2010 .bash_logout
-rw-r--r--. 1 root rot 176 Jul 15 2010 .bash_profile
-rw r--r--. 1 root root 176 Jul 15 2010 .bashrc
drwxr-xr-x. 3 root root 4096 Feb 8 22:31 .cache
-rw-r--r--. 1 root root 100 Jul 15 2010 .cshrc
-rw-r--r--. 1 root root 129 Jul 15 2010 .tchrc
[root@localhost ~]# cd /home/liveuser
[root@localhost liveuser]# ls -al
drwx------. 4 liveuser liveuser 4096 Feb 8 22:31 .
drwxr-xr-x. 3 root root 4096 Feb 8 22:31 ..
-rw-r--r--. 1 liveuser liveuser 10 Oct 8 09:41 .bash_logout
-rw-r--r--. 1 liveuser liveuser 10 Oct 8 09:41 .bash_profile
-rw-r--r--. 1 liveuser liveuser 10 Oct 8 09:41 .bashrc
dr-xr-xr-x. 3 liveuser liveuser 4096 Feb 8 22:31 .config
dr-xr-xr-x. 4 liveuser liveuser 4096 Oct 24 19:50 .mozilla
[root@localhost liveuser]# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 32G 0 32G 0T /dev
tmpfs 32G 4.0K 32G 1% /dev/shm
tmpfs 32G 1.3M 32G 1% /run
tmpfs 32G 0 32G 0% /sys/fs/cgroup
/dev/sda1 1.0G 1.0G 0 100% /run/initramfs/live
/dev/mapper/live-rw 6.4G 5.2G 1.2G 83% /
tmpfs 32G 4.0K 32G 1% /tmp
vartmp 32G 0 32G 0% /var/tmp
tmpfs 6.3G 0 6.3G 0% /run/user/0
[root@localhost liveuser]# [ 126.960811] thinkpad_acpi: unhandled HKEY
[ 126.960872] thinkpad_acpi: please report the conditions when this event
happened to email@example.com
I haven't broken the RAID yet because I still have some serious backing up
to do. Once I make the change from HYBRID to DESCRETE, all is lost and I'm
at square zero.
Robert G. (Doc) Savage
Fairview Heights, IL
"Perfection is the enemy of good enough."
-- Admiral of the Fleet Sergei G. Gorshkov
To unsubscribe, send email to firstname.lastname@example.org with
"unsubscribe silug-discuss" in the body.