The description of this bug has been updated for how to repair affected BIOS. If you are still suffering from this issue and the Ubuntu system on your laptop is functional, please give it a try. Including the solution into v4.13 kernel is being investigated. However, if you can no longer boot to Ubuntu for some reasons, besides posting your questions here, https://askubuntu.com/ or https://ubuntuforums.org/ are two other excellent support channels that you can ask for help and advice from the wider community.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1734147 Title: Ubuntu 17.10 corrupting BIOS - many LENOVO laptops models Status in Linux: Unknown Status in linux package in Ubuntu: Confirmed Status in linux-hwe-edge source package in Xenial: Fix Released Status in linux-oem source package in Xenial: Fix Released Status in linux source package in Artful: Fix Released Bug description: Description: An update to linux kernel on Ubuntu 17.10 that enabled the intel-spi-* drivers made Insyde BIOS unusable. Main issues were Settings being not stored, USB Boot impossible and EFI entries read- only. Fix: The issue was fixed in Kernel Version 4.13.0-21. But previous affected machines still suffered from a broken BIOS. Repair: If you still can boot into Ubuntu, you can recover your BIOS with the following steps: 1. Boot into Ubuntu 2. Download http://people.canonical.com/~ypwong/lp1734147/linux-image-4.15.0-041500rc6-generic_4.15.0-041500rc6.201712312330+20170103+1_amd64.deb 3. Install the downloaded package: $ sudo dpkg -i linux-image-4.15.0-041500rc6-generic_4.15.0-041500rc6.201712312330+20170103+1_amd64.deb 4. Make sure the kernel is installed without any error. Once installed, reboot. 5. At grub, choose the newly installed kernel. You can choose the "recovery" mode. 6. Reboot and go to BIOS settings to confirm your BIOS has been recovered. 7. In case your BIOS is not recovered, reboot to the new kernel, then reboot *once again* to the new kernel, do not enter BIOS settings before the reboot. After the second reboot, check BIOS. 8. If your BIOS issue remains, download another kernel from http://people.canonical.com/~ypwong/lp1734147/linux-image-4.15.0-041500rc6-generic_4.15.0-041500rc6.201712312330+clear+debug_amd64.deb, and use dpkg to install it, then repeat steps 4 to 6. After your BIOS is fixed, the kernel packages you just installed are no longer needed, you can remove it by running 'sudo dpkg -r linux- image-4.15.0-041500rc6-generic'. --- Test Case: Fix has been verified by our HWE team on affected hardware. Regression Potential: Minimal, it's unlikely anyone is actually doing anything which requires this driver. --- Affected Machines: Lenovo B40-70 Lenovo B50-70 Lenovo B50-80 Lenovo Flex-3 Lenovo Flex-10 Lenovo G40-30 Lenovo G50-30 Lenovo G50-70 Lenovo G50-80 Lenovo S20-30 Lenovo U31-70 Lenovo Y50-70 Lenovo Y70-70 Lenovo Yoga Thinkpad (20C0) Lenovo Yoga 2 11" - 20332 Lenovo Z50-70 Lenovo Z51-70 Lenovo ideapad 100-15IBY Acer Aspire E5-771G Acer Aspire ES1-111M-C1LE (not fixed by 4.14.9 and 4.14.10) Acer TravelMate B113 Acer Swift SF314-52 (Fixed by 4.14.9) Toshiba Satellite S55T-B5233 Toshiba Satellite L50-B-1R7 Toshiba Satellite S50-B-13G Dell Inspiron 15-3531 (not fixed by 4.14.9) Mediacom Smartbook 14 Ultra M-SB14UC Acer Aspire E3-111-C0UM HP 14-r012la --- Original Description: 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. Thank you!! To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1734147/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
