Re: [gentoo-user] Re: Dual Booting - selection from command line

[Mark Knecht <markknecht@gmail.com>]

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On Wed, Jan 17, 2024 at 9:58 AM <thelma@sys-concept.com> wrote:
>
> On 1/10/24 15:14, Mark Knecht wrote:
> >
> >
> > On Wed, Jan 10, 2024 at 2:38 PM <thelma@sys-concept.com <mailto:
thelma@sys-concept.com>> wrote:
<SNIP>
>
> Thank you, yes that work perfectly
>
> "efibootmgr -n "  is one time entry for one reboot; to set it permanently
one should use:
> "efibootmgr -o + arrange entries"
>
> Does anybody know how to rename the boot entries, in my case I have:
>
> efibootmgr
> BootCurrent: 0004
> Timeout: 1 seconds
> BootOrder: 0000,0004,0002
> Boot0000* rEFInd Boot Manager
HD(1,GPT,87a5c5b6-c0a8-024c-b1c0-622907add992,0x800,0x200000)/File(\EFI\REFIND\REFIND_X64.EFI)
> Boot0002* UEFI OS
HD(1,GPT,87a5c5b6-c0a8-024c-b1c0-622907add992,0x800,0x200000)/File(\EFI\BOOT\BOOTX64.EFI)0000424f
> Boot0004* rEFInd Boot Manager
HD(1,GPT,9d2481cf-8c35-4d9d-88ee-1d0d6e06cc68,0x800,0x1dc800)/File(\EFI\refind\refind_x64.efi)
>
> This is cryptic,
> 0000 - is sda disk
> 0004 - nvme disk
>
> How to rename them to SDA  and NVME respectively

man efibootmgr shows a 'label' option but
I've never used it. Try it at your own risk.

If I was going to try it I would first create the
new one with the new label using the data from
an existing option, test it, and if it worked then
delete the one with the less useful name.

From Google Bard:
<QUOTE>
Use efibootmgr -c -d <disk> -p <partition> -l <new_label> -L <loader_path>
to create a new entry with the desired label and correct path to the
bootloader:

<disk>: The disk where the bootloader resides (e.g., /dev/sda)
<partition>: The partition number where the bootloader is located (e.g., 1)
<new_label>: The desired label for the boot option
<loader_path>: The full path to the bootloader file (e.g.,
\\EFI\\ubuntu\\shimx64.efi)
</QUOTE>

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