From: Marius Bakke <mbakke@fastmail.com>
To: Arne Babenhauserheide <arne_bab@web.de>
Cc: 40496@debbugs.gnu.org
Subject: bug#40496: cannot install bootloader
Date: Wed, 08 Apr 2020 11:53:52 +0200 [thread overview]
Message-ID: <87369el2vj.fsf@devup.no> (raw)
In-Reply-To: <87sghe8oc6.fsf@web.de>
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Arne Babenhauserheide <arne_bab@web.de> writes:
> Marius Bakke <mbakke@fastmail.com> 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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next prev parent reply other threads:[~2020-04-08 9:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-07 20:24 bug#40496: cannot install bootloader Arne Babenhauserheide
2020-04-07 20:40 ` Marius Bakke
2020-04-07 21:16 ` Arne Babenhauserheide
2020-04-07 22:38 ` Marius Bakke
2020-04-08 6:48 ` Arne Babenhauserheide
2020-04-08 9:53 ` Marius Bakke [this message]
2020-04-08 20:33 ` Arne Babenhauserheide
2020-04-08 22:18 ` Arne Babenhauserheide
2020-04-07 22:08 ` Ludovic Courtès
2020-04-07 22:23 ` Arne Babenhauserheide
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