Having Trouble adding UEFI entry using efibootmgr
15,811
The -d
option to efibootmgr
takes a whole-disk device, such as /dev/sda
or /dev/sdb
, not a partition (such as the /dev/sdb2
you've provided). The -p
option identifies the partition on the disk, which in your example you've set to 2
.
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Author by
user2851684
Updated on September 18, 2022Comments
-
user2851684 over 1 year
I am trying to rename the boot label of ubuntu. In order to rename the label, I have to delete the entry and create it again. However
efibootmgr
seem to not recognize the correct partition. Here is what I do to create the entry:sudo efibootmgr -c -w -l \\EFI\\ubuntu\\shimx64.efi -L "Lubuntu" -p 2 -d /dev/sdb2
This works, however right after I reboot this entry is deleted. When I do
efibootmgr -v
I get thisBoot0003* Lubuntu HD(2,0,0,500a0dff)File(\EFI\ubuntu\shimx64.efi) Boot0007* Ubuntu HD(2,1f4800,82000,adcf2808-6afb-47fc-be64-5ce73ca83859)File(\EFI\ubuntu\grubx64.efi)RC Boot00A5* Windows Boot Manager HD(2,1f4800,82000,adcf2808-6afb-47fc-be64-5ce73ca83859)File(\EFI\Microsoft\Boot\bootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...s................
"Ubuntu" is the working entry. As you can clearly see, they are pointing to totally different places, yet the files are in the same place.
Any ideas?