On Sat, Nov 19, 2016 at 09:03:17PM +0000, Steve McIntyre wrote: > That's not a guarantee - a simple update of the EFI variables (e.g. by
Guarantee what? > afterwards. There have been known bugs in some firmware Again: this problem is result of Debian upgrade.That is, software was changed and no changes was made in hardware. Do You think if Linux doesn't work on that hardware, then hardware is wrong? In this case I am wonder how do Linux are working for few decades all over the hardware. > efibootmgr. Calling that command line again with extra "-v" will print > more information, maybe. grub-install: info: reading /usr/lib/grub/x86_64-efi/fshelp.mod. grub-install: info: reading /usr/lib/grub/x86_64-efi/ext2.mod. grub-install: info: reading /usr/lib/grub/x86_64-efi/part_gpt.mod. grub-install: info: kernel_img=0x578852d0, kernel_size=0x18a00. grub-install: info: the core size is 0x1c940. grub-install: info: writing 0x1dc00 bytes. grub-install: info: copying `/boot/grub/x86_64-efi/core.efi' -> `/boot/efi/EFI/debian/grubx64.efi'. grub-install: info: Registering with EFI: distributor = `debian', path = `\EFI\debian\grubx64.efi', ESP at hd0,gpt2. grub-install: info: executing efibootmgr --version </dev/null >/dev/null. grub-core/kern/disk.c:295: Closing `hd0'. grub-install: info: executing modprobe -q efivars. grub-core/kern/disk.c:295: Closing `hd0'. grub-core/kern/disk.c:295: Closing `hd0'. grub-install: info: executing efibootmgr -c -d /dev/sda -p 2 -w -L debian -l \EFI\debian\grubx64.efi. grub-core/kern/disk.c:295: Closing `hd0'. Could not prepare Boot variable: No space left on device > >From experience with other Lenovo machines, you *may* be able to fix > this by re-flashing the firmware/BIOS - this typically resets the EFI > variable storage space. Why it is about storage space again? Nothing changed there. Moreover, this "buggy" firmware successfully booted from other media, such as flash drive or usb hard drive. But there no efibootmgr command was used. Nothing was written into variable space in this case - efi loader was found by firmware without any record being made into that space. Could You assume that there are some sort of software bug? Here is series of commands and results: efibootmgr BootCurrent: 000E Timeout: 1 seconds BootOrder: 000E,0010,0011,0005,0012,0008,0009 Boot0005* Windows Boot Manager Boot0008* Generic Usb Device Boot0009* CD/DVD Device Boot000E* HL-DT-ST DVD-RAM GHB0N Boot0010* ST1000DX001-1CM162 Boot0011* StoreJetTranscend Boot0012* UEFI: StoreJetTranscend efibootmgr -B -b 0012 Could not delete variable: No space left on device efibootmgr -B -b 0011 BootCurrent: 000E Timeout: 1 seconds No BootOrder is set; firmware will attempt recovery Boot0005* Windows Boot Manager Boot0008* Generic Usb Device Boot0009* CD/DVD Device Boot000E* HL-DT-ST DVD-RAM GHB0N Boot0010* ST1000DX001-1CM162 efibootmgr -B -b 0010 BootCurrent: 000E Timeout: 1 seconds No BootOrder is set; firmware will attempt recovery Boot0005* Windows Boot Manager Boot0008* Generic Usb Device Boot0009* CD/DVD Device Boot000E* HL-DT-ST DVD-RAM GHB0N efibootmgr -o 000E,0005,0008,0009 Could not set BootOrder: No space left on devic BootCurrent: 000E Timeout: 1 seconds No BootOrder is set; firmware will attempt recovery Boot0005* Windows Boot Manager Boot0008* Generic Usb Device Boot0009* CD/DVD Device Boot000E* HL-DT-ST DVD-RAM GHB0N efibootmgr -B -b 000E BootCurrent: 000E Timeout: 1 seconds No BootOrder is set; firmware will attempt recovery Boot0005* Windows Boot Manager Boot0008* Generic Usb Device Boot0009* CD/DVD Device efibootmgr -o 0005,0008,0009 Could not set BootOrder: No space left on device efibootmgr BootCurrent: 000E Timeout: 1 seconds No BootOrder is set; firmware will attempt recovery Boot0005* Windows Boot Manager Boot0008* Generic Usb Device Boot0009* CD/DVD Device efibootmgr -c -d /dev/sda -p 2 -w -L debian -l \EFI\debian\grubx64.efi Could not prepare Boot variable: No space left on device efibootmgr BootCurrent: 000E Timeout: 1 seconds No BootOrder is set; firmware will attempt recovery Boot0005* Windows Boot Manager Boot0008* Generic Usb Device Boot0009* CD/DVD Device So, You can see: it can delete an entry, but cannot add. ### Vladimir Stavrinov ###
