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bug#40496: cannot install bootloader
From: |
Marius Bakke |
Subject: |
bug#40496: cannot install bootloader |
Date: |
Wed, 08 Apr 2020 11:53:52 +0200 |
User-agent: |
Notmuch/0.29.3 (https://notmuchmail.org) Emacs/26.3 (x86_64-pc-linux-gnu) |
Arne Babenhauserheide <address@hidden> writes:
> Marius Bakke <address@hidden> writes:
>
>> I hope you are able to recover your system. If the problem is "just"
>> that the boot entry is missing,
>
> Do you mean in grub?
I mean in the firmware boot menu. The way UEFI works is that
bootloaders update the firmware directly with a name, EFI System
Partition, and executable (most likely "/EFI/Guix/grubx64.efi").
>> you should be able to create a new one
>> with "efibootmgr --create" manually. Here is a typical entry with the
>> EFI System Partition as the first partition of a disk:
>>
>> # efibootmgr -v
>> BootCurrent: 0000
>> Timeout: 1 seconds
>> BootOrder: 0000,0002
>> Boot0000* Guix
>> HD(1,GPT,32944052-6012-4cda-b270-fe653d430c84,0x800,0x4800)/File(\EFI\Guix\grubx64.efi)
>
> When I run efibootmgr -v, I get an error:
> $ efibootmgr -v
> EFI variables are not supported on this system.
This also requires booting in "EFI mode" so that /sys/firmware/efi is
present. The live USB image supports EFI, but you may need to disable
"legacy boot" to make it boot in EFI mode.
>> 1 is the partition number, and the UUID is the same as 'lsblk -o
>> PARTUUID /dev/sda1' assuming your disk is /dev/sda. I don't remember
>> what 0x800 and 0x4800 means, but don't think they are required.
>
> I get somewhat too little information from that:
>
> $ lsblk -O /dev/nvme1n1p1
> NAME KNAME PATH MAJ:MIN FSAVAIL FSSIZE FSTYPE FSUSED FSUSE% MOUNTPOINT LABEL
> UUID PTUUID PTTYPE PARTTYPE PARTLABEL PARTUUID PARTFLAGS RA RO RM HOTPLUG
> MODEL SERIAL SIZE STATE OWNER GROUP MODE ALIGNMENT MIN-IO OPT-IO
> PHY-SEC LOG-SEC ROTA SCHED RQ-SIZE TYPE DISC-ALN DISC-GRAN DISC-MAX DISC-ZERO
> WSAME WWN RAND PKNAME HCTL TRAN SUBSYSTEMS REV VENDOR ZONED
> nvme1n1p1
> nvme1n1p1
> /dev/nvme1n1p1
> 259:2 15,4G 884,9G 824,5G 93% /home
> 128 0 0 0
> 900G root disk brw-rw---- 0 512 0 512
> 512 0 none 1023 part 0 512B 2T 0 0B
> 0 nvme block:nvme:pci
You probably need to use "sudo" to read the PARTUUID.
HTH,
Marius
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bug#40496: cannot install bootloader, Ludovic Courtès, 2020/04/07