Re: How do I fix my EUFI boot from USB stick?

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On 1/17/25 11:35 PM, ToddAndMargo via users wrote:
On 1/17/25 11:15 PM, Felix Miata wrote:
ToddAndMargo via users composed on 2025-01-17 22:55 (UTC-0800):

Device       Start       End   Sectors  Size Type
/dev/sdc1     2048      4095      2048    1M BIOS boot
/dev/sdc2     4096   2101247   2097152    1G Linux extended boot
/dev/sdc3  2101248 121143295 119042048 56.8G Linux root (x86-64)

This stick is not configured for UEFI booting. Instead of a required EFI System
partition (ESP) of 100M or more you have a 1M BIOS boot partition.

# fdisk -l
...
Device              Start       End  Sectors  Size Type
/dev/nvme0n1p1       2048    657407   655360  320M EFI System
...
My boot drive

# fdisk -l /dev/nvme0n1p1
Disk /dev/nvme0n1p1: 200 MiB, 209715200 bytes, 409600 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000

I see what you mean.  Is there anyway to stick the EUFI on
the flash drive, or do I have to erase it and start over?

The ESP doesn't need to be too big, so you can probably take 200MB from the /boot partition to extend the first partition. Then you need to format it as FAT32 and flag it correctly (gparted knows how to do it). Then you need to install (or re-install) grub2-efi. Hopefully that will do it. You could probably copy the efi partition from another drive to get started. That might let you boot and re-install from the running system.

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