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| author | Xe Iaso <me@xeiaso.net> | 2024-12-28 18:30:53 -0500 |
|---|---|---|
| committer | Xe Iaso <me@xeiaso.net> | 2024-12-28 18:31:05 -0500 |
| commit | 22bcd9e88c45ed9548de998f323cd11913f2dbbc (patch) | |
| tree | cdd0853584f747815423c3a9a4183cf8c120e8ca | |
| parent | 69129c3eb216525c4bf3c7acce84e2542d9f8d86 (diff) | |
| download | xesite-22bcd9e88c45ed9548de998f323cd11913f2dbbc.tar.xz xesite-22bcd9e88c45ed9548de998f323cd11913f2dbbc.zip | |
how to force linux to boot from a USB
Signed-off-by: Xe Iaso <me@xeiaso.net>
| -rw-r--r-- | lume/src/notes/2024/force-linux-boot-usb.mdx | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/lume/src/notes/2024/force-linux-boot-usb.mdx b/lume/src/notes/2024/force-linux-boot-usb.mdx new file mode 100644 index 0000000..8daea5a --- /dev/null +++ b/lume/src/notes/2024/force-linux-boot-usb.mdx @@ -0,0 +1,35 @@ +--- +title: "How to force a Linux device to boot from USB when the GPU is dead and you can't do it from the BIOS" +date: 2024-12-28 +--- + +tl;dr: use `efibootmgr` + +Let's say you have a Kingston DataTraveler with a Linux ISO on it and want to boot from it, but your GPU is broken or something and you can't view output. Here's what you do: + +List the potential boot targets with `sudo efibootmgr`: + +``` +$ sudo efibootmgr +BootCurrent: 0005 +Timeout: 1 seconds +BootOrder: 0005,0000,0006 +Boot0000* Linux Boot Manager HD(3,GPT,d540ada8-f3df-4783-b774-01f46cb8246f,0x800,0xff800)/File(\EFI\systemd\systemd-bootx64.efi) +Boot0005* UEFI OS HD(3,GPT,d540ada8-f3df-4783-b774-01f46cb8246f,0x800,0xff800)/File(\EFI\BOOT\BOOTX64.EFI)0000424f +Boot0006* UEFI: KingstonDataTraveler 3.0, Partition 2 PciRoot(0x0)/Pci(0x8,0x1)/Pci(0x0,0x3)/USB(2,0)/USB(0,0)/HD(2,GPT,39313032-3630-4130-b232-303133343532,0x150,0x1680)0000424f +``` + +The Kingston DataTraveler is Boot0006, so tell efibootmgr to mark 0006 as the next boot target: + +``` +$ sudo efibootmgr --bootnext 0006 +BootNext: 0006 +BootCurrent: 0005 +Timeout: 1 seconds +BootOrder: 0005,0000,0006 +Boot0000* Linux Boot Manager HD(3,GPT,d540ada8-f3df-4783-b774-01f46cb8246f,0x800,0xff800)/File(\EFI\systemd\systemd-bootx64.efi) +Boot0005* UEFI OS HD(3,GPT,d540ada8-f3df-4783-b774-01f46cb8246f,0x800,0xff800)/File(\EFI\BOOT\BOOTX64.EFI)0000424f +Boot0006* UEFI: KingstonDataTraveler 3.0, Partition 2 PciRoot(0x0)/Pci(0x8,0x1)/Pci(0x0,0x3)/USB(2,0)/USB(0,0)/HD(2,GPT,39313032-3630-4130-b232-303133343532,0x150,0x1680)0000424f +``` + +Then reboot. You will boot off of the USB drive. |