[Bug 1734147] [NEW] Ubuntu 17.10 corrupting BIOS - Lenovo Y50-70

[tobia antoniolli]

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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https://bugs.launchpad.net/bugs/1734147

Title:
  Ubuntu 17.10 corrupting BIOS - Lenovo Y50-70

Status in grub2 package in Ubuntu:
  New

Bug description:
  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!!

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