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Fail to boot in UEFI mode after a reinstall of grub-efi




Hi,

I have a Gigabyte MB with some years with an Intel processor capable of
64bits.  If I install Windows or Debian from scratch I can boot in
UEFI mode.  I can boot a USB pen with a Debian installer in UEFI mode.

If UEFI boot it gets broken for a reason, like replacing the boot
disk, I can not fix the UEFI boot.  This time I have followed the
instructions in https://wiki.debian.org/GrubEFIReinstall without
avail.

I need to understand what is broken with my PC and possibly report the
relevant bugs or updating the Wiki page.  I have bad experiences
updating BIOS, so I prefer not to do it.

This time I managed to boot the old installation by using a fresh
Debian install in a new disk and selecting one of the secondary
entries of grub to boot other OS on the secondary disks.

efibootmgr --verbose
BootCurrent: 0000
Timeout: 1 seconds
BootOrder: 0000,0001,0002,0003
Boot0000* debian	HD(1,GPT,4adac19e-a245-4228-91fc-59bb3560cd52,0x800,0xf3800)/File(\EFI\debian\grubx64.efi)
Boot0001* rEFInd Boot Manager	HD(1,GPT,087f2227-d0d0-4535-b6cc-402603e182ae,0x800,0x100000)/File(\efi\boot\bootx64.efi)
Boot0002* rEFInd Boot Manager	HD(1,GPT,087f2227-d0d0-4535-b6cc-402603e182ae,0x800,0x100000)/File(\EFI\refind\refind_x64.efi)
Boot0003* UEFI: USB Flash Disk 1100	HD(1,MBR,0x4294967181,0xebc,0x340)/File(\EFI\BOOT\BOOTX64.EFI)AMBO


Kind regards
Jose M Calhariz


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