On 1/10/24 15:14, Mark Knecht wrote:


On Wed, Jan 10, 2024 at 2:38 PM <the...@sys-concept.com 
<mailto:the...@sys-concept.com>> wrote:
 >
 > On 1/9/24 19:22, Nikos Chantziaras wrote:
 > > On 10/01/2024 02:18, the...@sys-concept.com 
<mailto:the...@sys-concept.com> wrote:
 > >> I have a box that is two HD's and both are bootable; using "refind" 
instead of grub.
 > >> So the selection I choose at boot which drive to boot will be the default 
(during reboot, from command line) until I select the second drive.
 > >>
 > >> The box will be installed in a remote location, so I have no option to 
select which drive to boot from (unless I'm in front of the box).
 > >> Is it possible to select which drive I want to "boot" from the command 
line (reboot #2 etc)?
 > >
 > > Maybe this helps: 
https://gist.github.com/Darkhogg/82a651f40f835196df3b1bd1362f5b8c 
<https://gist.github.com/Darkhogg/82a651f40f835196df3b1bd1362f5b8c>
 >
 > Thank you for the link.

I have no experience with refind but for my UEFI systems I accomplish this
using efibootmgr and a simple batch file. The machine always boots Linux
by default but from within Linux I can tell it to reboot into Windows

mark@science2:~$ sudo efibootmgr
BootCurrent: 0003
Timeout: 1 seconds
BootOrder: 0003,0000
Boot0000* Windows Boot Manager
Boot0003* ubuntu


mark@science2:~$ cat bin/RebootWindows
sudo efibootmgr -n 0000
reboot
mark@science2:~$

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




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