efibootmgr help

Paul Cartwright pbcartwright at gmail.com
Sun Aug 30 13:21:09 UTC 2015


On 08/30/2015 08:28 AM, Tom H wrote:
>> > it gets me to a screen where I see:
>> >
>> > UEFI Boot
>> > Fedora
>> > UEFI OS
>> > UEFI OS
>> > ubuntu
>> > Windows...
>> > Fedora
>> > ubuntu
>> >
>> > not very descriptive to tell me what kernel or why duplicate Fedora &
>> > ubuntu entries..
>> > I selected the top Fedora entry and... it took me to my known fedora
>> > grub selection for all the fedora,ubuntu & windows OSes.. that is the
>> > fedora grub.cfg entries..
> Doesn't the firmware boot screen correspond to the output of "efibootmgr"?
 it looks that way..
so, tell me what the difference is between Fedora, 0005, and UEFI OS:

Boot0005* Fedora   
HD(8,GPT,ac2fc695-5de9-47d0-a19b-01e236404130,0x5ae5d800,0x2f800)/File(\EFI\FEDORA\shim.efi)
Boot0009* UEFI OS   
HD(8,GPT,ac2fc695-5de9-47d0-a19b-01e236404130,0x5ae5d800,0x2f800)/File(\EFI\BOOT\BOOTX64.EFI)

what is the difference between FEDORA/shim.efi and FEDORA/BOOTX64.EFI ...

 efibootmgr -v
BootCurrent: 0005
Timeout: 0 seconds
BootOrder: 0005,0009,000C,0004,0003,0002,0010,0000,0001
Boot0000* P0: WDC WD10EZEX-75M2NA0          BBS(17,,0x0)
Boot0001* P4: TSSTcorp DVD+/-RW SH-216DB    BBS(19,,0x0)
Boot0002* Fedora   
HD(8,GPT,ac2fc695-5de9-47d0-a19b-01e236404130,0x5ae5d800,0x2f800)/File(\EFI\fedora\shim.efi)
Boot0003* Windows Boot Manager   
HD(1,GPT,4cc2fdac-58ea-400c-8ef9-11e13499addf,0x800,0xfa000)/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.}...9................
Boot0004* ubuntu   
HD(1,GPT,4cc2fdac-58ea-400c-8ef9-11e13499addf,0x800,0xfa000)/File(\EFI\ubuntu\shimx64.efi)
Boot0005* Fedora   
HD(8,GPT,ac2fc695-5de9-47d0-a19b-01e236404130,0x5ae5d800,0x2f800)/File(\EFI\FEDORA\shim.efi)
Boot0009* UEFI OS   
HD(8,GPT,ac2fc695-5de9-47d0-a19b-01e236404130,0x5ae5d800,0x2f800)/File(\EFI\BOOT\BOOTX64.EFI)
Boot000C* UEFI OS   
HD(1,GPT,4cc2fdac-58ea-400c-8ef9-11e13499addf,0x800,0xfa000)/File(\EFI\BOOT\BOOTX64.EFI)
Boot0010* ubuntu   
HD(1,GPT,4cc2fdac-58ea-400c-8ef9-11e13499addf,0x800,0xfa000)/File(\EFI\Ubuntu\grubx64.efi)


-- 
Paul Cartwright
Registered Linux User #367800 and new counter #561587



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