Unsubscribe On Tue 1 May 2018, 4:01 PM Louis Bourque <1734...@bugs.launchpad.net wrote:
> Hello dear skilled members, > > I would also call upon you to know if the «installation» of LibreBoot > that rewrites an open-sourced BIOS can be an alternative way to the fix > described in the Bug Description; that is, to correct the corrupted > function found the (proprietary) original BIOS ? If so, could you say > in which condition, or express reserves ? > > Please see : > https://libreboot.org/ > > Thanks again for your attention, much kindly. > > -- > You received this bug notification because you are subscribed to the bug > report. > 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: > Fix Released > 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'. > > The patch used to build the linux v4.15 kernel in step 8 can be found > at https://goo.gl/xUKJFR. > > --- > > 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 Yoga 3 11" > 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 > Toshiba Satellite L70-A-13M > Dell Inspiron 15-3531 > Mediacom Smartbook 14 Ultra M-SB14UC (fixed with official fix) > 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 > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1734147 Title: corrupted BIOS due to Intel SPI bug in kernel To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1734147/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
