FOR USERS WITH ACTIVE BASH LINE Hello after a long loong looooong struggle and learning and with the above patch
http://people.canonical.com/~ypwong/lp1734147/linux- image-4.15.0-041500rc6-generic_4.15.0-041500rc6.201712312330+clear+debug_amd64.deb I successfully restored UEFI BIOS on Lenovo B50-80. The only solution working for me, if I hadn't played with windows efi boot manager: First I installed Ubuntu 16.04 in Oracle Virtual Box on Windows PC on a flash drive - must be at least 16GB. I had to forbid creating any virtual disks. Assigned live CD from iso and then simply attached Flash drive. It was better on Windows than Live Linux. After successful install on USB Flash drive, I plugged the Flash drive to the affected Lenovo. From minimal Bash-line I found the grub.cfg location on USB. usually - ls (hd0,XY)/boot/grub I used the configfile command - configfile (hd0,msdos1)/boot/grub/grub.cfg - in my case. Grub 2.02 started without hesitation and allowed me to pick to run Ubuntu 16.04 on the USB drive. Booted in the system I did all the necessary updates sudo apt update sudo apt upgrade I also used boot-repair, that allowed me to see grub graphical interface straightaway after reboot. But I think this is not necessary. I did not use ukuu for a kernel upgrade, I just simply used wget command. Nice inspiration is here: http://sourcedigit.com/22874-update-linux-kernel-4-14-rc7-ubuntu-systems/ UEFI BIOS started to work only after the last upgrade which you can find here in this forum, and allowed me to change anything permanently after exit. Then I was able to boot any bootable CD or USB Drive. However I did Lenovo One key recovery, which magically started to work after UEFI BIOS was unlocked. Good luck for those still struggling. -- 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: corrupted BIOS due to Intel SPI bug in kernel 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: An update to linux kernel on Ubuntu 17.10 that enabled the Intel SPI drivers results in a serial flash that is read only in Intel Broadwell and Haswell machines with serial flashes with SPI_NOR_HAS_LOCK set. Symptoms: * BIOS settings cannot be saved * USB Boot impossible * EFI entries read-only. --- Fix: The issue was fixed in kernel version 4.13.0-21 by configuring the kernel so it is not compiled with Intel SPI support. 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 (fixed following your new instruction (thank you)) 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 Mediacom Smartbook 14 Ultra M-SB14UC Acer Aspire E3-111-C0UM HP 14-r012la --- Affected serial flash devices by manufacturer part number, JEDEC ID (SPI_NOR_HAS_LOCK set in drivers/mtd/spi-nor/spi-nor.c) /* ESMT */ f25l32pa, 0x8c2016 f25l32qa, 0x8c4116 f25l64qa, 0x8c4117 /* GigaDevice */ gd25q16, 0xc84015 gd25q32, 0xc84016 gd25lq32, 0xc86016 gd25q64, 0xc84017 gd25lq64c, 0xc86017 gd25q128, 0xc84018 gd25q256, 0xc84019 /* Winbond */ w25q16dw, 0xef6015 w25q32dw, 0xef6016 w25q64dw, 0xef6017 w25q128fw, 0xef6018 --- 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
