Discussion:
[Bug 1734147] [NEW] Ubuntu 17.10 corrupting BIOS - Lenovo Y50-70
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tobia antoniolli
2017-11-23 15:47:25 UTC
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Public bug reported:

Hi all,

Basically on Lenovo Y50-70 after installing Ubuntu 17.10, many users
reported a corrupted BIOS.

It's not possible to save new settings in BIOS anymore and after
rebooting, the system starts with the old settings.

Moreover (and most important) USB booting is not possible anymore since
USB is not recognized. It's very serious, since our machines do not have
a CDROM.

Lenovo forums at the moment are full of topics regading this issue.

For example:

https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Y50-70-BIOS-Can-t
-Save-Settings-or-boot-with-USB/m-p/3849142

https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Y50-70-BIOS-Can-t
-Save-Settings-Or-Exit/m-p/3601285

https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/y50-70-BIOS-can-t
-save-settings-and-I-can-t-boot-system/m-p/3865727

Thank you!!

** Affects: grub2 (Ubuntu)
Importance: Undecided
Status: New

** Information type changed from Private Security to Public
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Launchpad Bug Tracker
2017-11-24 20:00:10 UTC
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Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: grub2 (Ubuntu)
Status: New => Confirmed
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britgreek
2017-11-24 20:09:31 UTC
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The problem also affects Lenovo G40-30. I have just installed Ubuntu
17.10 in legacy mode (dual boot with Windows 10) and the boot from USB
option is gone. Very serious issue, as there is no way to format our
hard drives and reinstall an OS. There was no reference in the
documentation for such a serious problem that would alter/corrupt our
bios.
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bruno
2017-11-24 22:48:31 UTC
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I have the same problem with Lenovo U31-70. Since I upgraded to Ubuntu
17.10 i'm unable to save any changes made to the bios.
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tobia antoniolli
2017-11-24 23:52:19 UTC
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** Summary changed:

- Ubuntu 17.10 corrupting BIOS - Lenovo Y50-70
+ Ubuntu 17.10 corrupting BIOS - many LENOVO laptops models
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Shaleghi
2017-11-25 06:18:36 UTC
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I have the same problem - Lenovo Y50-70 - I took my laptop to a
professional repair shop and they could not fix it.
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Toninetto
2017-11-25 07:55:50 UTC
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I've had the same problem. After trying different solutions, I had to remove the bios chip with hot air, read the content with a usb programmer, and flash a new chip. So now i can remove the secure boot and saving on exit...
I know this is an extreme solution, but I hope I can help someone find a simpler solution.
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davvvidko
2017-11-25 10:49:37 UTC
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Same problem with Lenovo G50-70

Cannot boot from USB/CD rom

I dont know how we can get this repaired.
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tobia antoniolli
2017-11-25 12:29:51 UTC
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** Description changed:

Hi all,

Basically on Lenovo Y50-70 after installing Ubuntu 17.10, many users
reported a corrupted BIOS.

It's not possible to save new settings in BIOS anymore and after
rebooting, the system starts with the old settings.

Moreover (and most important) USB booting is not possible anymore since
USB is not recognized. It's very serious, since our machines do not have
a CDROM.

Lenovo forums at the moment are full of topics regading this issue.

For example:

https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Y50-70-BIOS-Can-t
-Save-Settings-or-boot-with-USB/m-p/3849142

https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Y50-70-BIOS-Can-t
-Save-Settings-Or-Exit/m-p/3601285

https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/y50-70-BIOS-can-t
-save-settings-and-I-can-t-boot-system/m-p/3865727

Thank you!!
+
+
+ #### UPDATE (25/11/2017) ####
+
+ LENOVO machines affected so far:
+
+ Lenovo Y50-70
+ Lenovo G40-30
+ Lenovo U31-70
+ Lenovo G50-70
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Tautedorus
2017-11-25 15:44:29 UTC
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I can also confirm this. I use the Lenovo Z50-70 laptop and I have
encountered this problem. After installing Ubuntu 17.10 (and other
remixes of it) and reinstalling it again, the UEFI BIOS does not save
any changes except the date and time. I could not reset the UEFI BIOS
settings because it did not save any changes and the CMOS battery is
soldered, unfortunately. What is even worse, the UEFI BIOS does not boot
any bootable media. I tried booting DVDs, USB sticks and other HDDs with
no luck. The only thing that the boot menu shows is the old installation
partition name and nothing else. Before that happened I used Manjaro
distribution which did not have such problems even after reinstalling it
multiple times. By the way, the solution to this problem was the a
motherboard replacement... Two times.

The only way to boot bootable devices is to install and properly
configure rEFInd:
https://forums.lenovo.com/t5/forums/v3_1/forumtopicpage/board-id/ll04_en
/thread-id/154203/page/2. That does not solve the UEFI BIOS corruption
problem. It is just a workaround.

Maybe it is a defective Lenovo UEFI BIOS (two motherboard replacements
proved that it could be defective "by design"). However, as I mentioned
before, other distributions had not caused any of these problems before.
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Marcin Ciosek
2017-11-25 20:27:48 UTC
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This is not Ubuntu bug.
I've created the workaround description (user marcin78 here) and as you can clearly see, it refers to my Antergos installation being the last one writing BIOS.
I think (I'm not system expert) that this can be related to the way the kernel update scripts (modules rebuild or mkinird or any other) is handling the process. It could be that other system users don't do so many BIOS rewrites (Windows is updated in a different way) and this problem is not affecting most of PC users. Although there are reports also from Windows installations.
So far the fix is replacing the chip. Far beyond most of our skills and definitely won't come cheap from Lenovo service.
Hope the rEFInd tip can serve you for now.
Marcin
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britgreek
2017-11-25 23:12:05 UTC
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Actually, this MUST be a Ubuntu / Linux bug, as the current Ubuntu 17.10
rendered our Lenovo laptops useless in the long run, without any
documentation or warning that the installation would affect the BIOS.
This is a very serious issue, both legally and ethically and I think
that we should demand an immediate fix. No OS should have anything to do
with the modification of the BIOS without the consent of the owner. What
will happen if we need to format our hard drives? How will we be able to
install the OS that we want? i am not happy with any workaround. I want
my computer to function as it did when I purchased it, in terms of its
bios settings and booting from USB is an essential feature. What remains
to be explained is the reason why it only affects Lenovo hardware and
not any other brand.
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sultan tell
2017-11-26 10:43:31 UTC
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Same problem with lenovo Z50-70
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britgreek
2017-11-26 11:06:30 UTC
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Just found a bios update, but it fails to install. I am trying to run
the exe from Lenovo website on Windows 10. The laptop just restarts
without performing the update.
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tobia antoniolli
2017-11-26 12:15:37 UTC
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** Description changed:

Hi all,

Basically on Lenovo Y50-70 after installing Ubuntu 17.10, many users
reported a corrupted BIOS.

It's not possible to save new settings in BIOS anymore and after
rebooting, the system starts with the old settings.

Moreover (and most important) USB booting is not possible anymore since
USB is not recognized. It's very serious, since our machines do not have
a CDROM.

Lenovo forums at the moment are full of topics regading this issue.

For example:

https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Y50-70-BIOS-Can-t
-Save-Settings-or-boot-with-USB/m-p/3849142

https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Y50-70-BIOS-Can-t
-Save-Settings-Or-Exit/m-p/3601285

https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/y50-70-BIOS-can-t
-save-settings-and-I-can-t-boot-system/m-p/3865727

Thank you!!

-
#### UPDATE (25/11/2017) ####

LENOVO machines affected so far:

Lenovo Y50-70
Lenovo G40-30
Lenovo U31-70
Lenovo G50-70
+ Lenovo Z50-70
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tobia antoniolli
2017-11-26 12:22:59 UTC
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I am not sure devs are working/have been informed, we need to directly involve them since this is a MAJOR issue as perfectly explained by britgreek on post #9.
Does anybody know how to speed up things here?
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britgreek
2017-11-26 12:46:15 UTC
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@tobia antoniolli

I think Lenovo does not support Linux as an OS, therefore, they will
claim that it is not their fault. On Lenovo forums, similar issues with
similar BIOS symptoms have been reported since 2016, without any
support. On the other hand, I do not see how Ubuntu devs can actually
revert the current situation, as Ubuntu theoretically has no access to
the BIOS or its code.

In my case, these laptops are used in a private school, and now I am
left stranded with machines that do not function as they should.
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britgreek
2017-11-26 13:55:35 UTC
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https://support.lenovo.com/gb/en/solutions/pd031426
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Lukas Bockstaller
2017-11-26 15:05:38 UTC
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Lenovo Yoga Thinkpad (20C0) is also affected.
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tobia antoniolli
2017-11-27 10:16:42 UTC
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@britgreek

I agree with you, Lenovo has nothing to do with this issue, however I
think it's Ubuntu devs responsability to take a look and try to fix this
issue, since Ubuntu 17.10 has corrupted our bios. Our machines here
(different models) reported this issue only after installing Ubuntu
17.10 and if you browse this forum, you would see that many others
reported Ubuntu corrupting the BIOS, something that is extremely
serious.

** Description changed:

Hi all,

Basically on Lenovo Y50-70 after installing Ubuntu 17.10, many users
reported a corrupted BIOS.

It's not possible to save new settings in BIOS anymore and after
rebooting, the system starts with the old settings.

Moreover (and most important) USB booting is not possible anymore since
USB is not recognized. It's very serious, since our machines do not have
a CDROM.

Lenovo forums at the moment are full of topics regading this issue.

For example:

https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Y50-70-BIOS-Can-t
-Save-Settings-or-boot-with-USB/m-p/3849142

https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Y50-70-BIOS-Can-t
-Save-Settings-Or-Exit/m-p/3601285

https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/y50-70-BIOS-can-t
-save-settings-and-I-can-t-boot-system/m-p/3865727

Thank you!!

- #### UPDATE (25/11/2017) ####
+ #### UPDATE (27/11/2017) ####

LENOVO machines affected so far:

Lenovo Y50-70
Lenovo G40-30
Lenovo U31-70
Lenovo G50-70
Lenovo Z50-70
+ Lenovo Yoga Thinkpad (20C0)
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