Gentoo Archives: gentoo-user

From: "J. Roeleveld" <joost@××××××××.org>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] making bootable USB
Date: Tue, 02 Sep 2014 18:17:14
Message-Id: bd777fac-e9c5-4d4d-a2ac-6b6d32d0ee4d@email.android.com
In Reply to: Re: [gentoo-user] making bootable USB by Joseph
1 On 2 September 2014 18:50:02 CEST, Joseph <syscon780@×××××.com> wrote:
2 >On 09/02/14 16:46, Alan McKinnon wrote:
3 >>On 02/09/2014 15:10, Joseph wrote:
4 >>> On 09/02/14 10:56, Mick wrote:
5 >>>> On 2 September 2014 09:00, Dale <rdalek1967@×××××.com> wrote:
6 >>>>> Neil Bothwick wrote:
7 >>>>>> On Tue, 02 Sep 2014 01:23:45 -0500, Dale wrote:
8 >>>>>>
9 >>>>>>>> Device Boot Start End Blocks Id System
10 >>>>>>>> /dev/sdb1 * 0 389119 194560 17 Hidden HPFS/NTFS
11 >>>>>>>>
12 >>>>>>> I don't know if it matters or not but on one of my sticks, I get
13 >this:
14 >>>>>>>
15 >>>>>>> Device Boot Start End Blocks Id System
16 >>>>>>> /dev/sde1 * 1 3915775 1957887+ c W95 FAT32 (LBA)
17 >>>>>>>
18 >>>>>>> Mine is FAT32 where yours is NTFS. Could that difference cause
19 >this
20 >>>>>>> problem?
21 >>>>>> No, it's just fdisk trying to guess the type of a filesystem that
22 >isn't
23 >>>>>> actually there. I've just run it over 7 distro ISOs and got
24 >"Hidden
25 >>>>>> HPFS/NTFS" for 5 of them.
26 >>>>>
27 >>>>> Well, it seems everyone is grasping at straws. So far, that is
28 >the only
29 >>>>> difference I have seen. It's a head scratcher for sure.
30 >>>>>
31 >>>>> Dale
32 >>>>
33 >>>> There's some more straws to grasp, namely the partition table that
34 >the
35 >>>> OP created with fdisk, as well as the first partition on it:
36 >>>>
37 >>>> Assuming the USB is still on /dev/sdb, then use fdisk to delete
38 >>>> partition /dev/sdb1.
39 >>>>
40 >>>> Then manually delete the USB DOS partition table:
41 >>>>
42 >>>> dd if=/dev/zero of=/dev/sdb bs=512 count=1
43 >>>>
44 >>>>
45 >>>> Finally, reinstall the iso once more without creating any
46 >partitions
47 >>>> manually:
48 >>>>
49 >>>> dd if=/home/joseph/Downloads/install-amd64-minimal-20140828.iso
50 >>>> of=/dev/sdb
51 >>>>
52 >>>> sync
53 >>>>
54 >>>> NOTE: Make sure that /dev/sdb is indeed your USB stick or you'll
55 >cause
56 >>>> damage
57 >>>> to whatever is on /dev/sdb.
58 >>>>
59 >>>> --
60 >>>> Regards,
61 >>>> Mick
62 >>>
63 >>> I just did as you suggested dd if=/dev/zero of=/dev/sdb bs=512
64 >count=1
65 >>> dd if=/home/joseph/Downloads/install-amd64-minimal-20140828.iso
66 >of=/dev/sdb
67 >>> sync
68 >>>
69 >>> make no difference, the USB still will not boot.
70 >>
71 >>what *does* happen when you try boot of the usb.
72 >>Something must happen on the screen, please describe that
73 >>
74 >>--
75 >>Alan McKinnon
76 >>alan.mckinnon@×××××.com
77 >
78 >I have tried it on two boxes, they are both small units without CD
79 >1.) First is an older box that can not boot from Gentoo ISO USB
80 >generated with "dd"
81 >BIOS setting are:
82 >USB-ZIP
83 >USB-FDD
84 >Hard Disk
85 >
86 >2.) The second box is an ATOM-330 and the same USB boots OK.
87 >
88 >So the issue might be with the Bios on the first box.
89
90 It takes 62 emails in this thread before you mention that the USB works in 1 of 2 machines.
91 Most logical conclusion from that little fact:
92 - the not working computer has an issue with some USB boot types.
93
94 In future. Please be more complete in your reports and supply the requested information sooner.
95
96 Kind regards,
97
98 Joost
99 --
100 Sent from my Android device with K-9 Mail. Please excuse my brevity.