Gentoo Archives: gentoo-user

From: Peter Humphrey <peter@××××××××××××.uk>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] UEFI data corruption? [SOLVED, mostly]
Date: Thu, 19 Sep 2019 08:30:36
Message-Id: 3787455.LRL8iXbs53@peak
In Reply to: Re: [gentoo-user] UEFI data corruption? [SOLVED, mostly] by Mick
1 On Wednesday, 18 September 2019 19:31:10 BST Mick wrote:
2
3 > > # efibootmgr -v
4 > > BootCurrent: 0000
5 > > Timeout: 1 seconds
6 > > BootOrder: 0000,0001,0002
7 > > Boot0000* EFI Stub HD(1,GPT,95b0a3f6-eae2-445c-
8 > > b098-3c8174588948,0x800,0x7f800)/File(\EFI\BOOT\BOOTX64.EFI)
9 >
10 > Boot0000 above is the first menu entry.
11 >
12 > "EFI Stub" is the label of this entry.
13
14 And it's the label I wanted to change to something more descriptive.
15
16 > Thereafter you can see the path of the bootable entry:
17 >
18 > HD - it is a hard drive
19 > 1 - on the first partition
20 > GTP - using a GPT partitioning schema
21 > 95b0a3f6-* - the UUID of the partition (not the fs)
22 > 0x800,0x7f800 - start-end of the partition in hex
23 > File - the filesystem path of the bootable image.
24 >
25 > > Boot0001* CD/DVD Drive BBS(CDROM,,0x0)..GO..NO........o.T.S.S.T.c.o.r.p.
26 > > .C.D.D.V.D.W. .S.N.-.
27 > > 2.0.8.F.B....................A...........................>..Gd-.;.A..MQ..L
28 > > .
29 > > 1.S.3.2.Y.6.G.B.0.C.B.0.G.K. . . . . . ........BO
30 >
31 > Boot0001 is the second boot entry and is a CD/DVD drive. It seems you have
32 > a CD in it, without it you would probably see something like this:
33 >
34 > Boot0001* UEFI:CD/DVD Drive BBS(129,,0x0)
35 >
36 > > Boot0002* Hard Drive BBS(HD,,0x0)..GO..NO........o.C.T.1.0.0.0.B.X.
37 > > 1.0.0.S.S.D.
38 > > 1....................A...........................>..Gd-.;.A..MQ..L.
39 > > 5.1.4.0.0.F.2.0.8.3.4.6. . . . . . . . ........BO..NO........o.C.T.
40 > > 1.0.0.0.B.X.1.0.0.S.S.D.
41 > > 1....................A...........................>..Gd-.;.A..MQ..L.
42 > > 5.1.4.0.0.F.2.0.8.3.F.8. . . . . . . .
43 > > ........BO..NO..........S.A.M.S.U.N.G. .M.Z.V.P.V.2.5.6.H.D.G.L.-.
44 > > 0.0.0.0.0....................A.......................................J..Gd
45 > > -. ;.A..MQ..L.S.A.M.S.U.N.G.
46 > > .M.Z.V.P.V.2.5.6.H.D.G.L.-.0.0.0.0.0........BO
47
48 Actually, there was no CD in the drive.
49
50 > Boot0002 is the final entry by the looks of it refers to a Samsung SSD.
51
52 Yes, it's the NVMe drive where the system resides. There are two other SSDs,
53 but I deleted their entries because they weren't required to boot.
54
55 --->8
56
57 Many thanks Mick.
58
59 --
60 Regards,
61 Peter.

Replies

Subject Author
Re: [gentoo-user] UEFI data corruption? [FIXED] Peter Humphrey <peter@××××××××××××.uk>