USB Booting Woes

[Mark Phillips]

Matt,

I think there has been a miscommunication.

fdisk shows /dev/sdb1 as type Linux (0x83) - the Disklabel type is dos. (my
error to say it was formatted as dos). This drive is causing the issues
with booting. df shows it is ext4.

root at orca:/home/mark# fdisk -l /dev/sdb
Disk /dev/sdb: 2.7 TiB, 3000558944256 bytes, 732558336 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x00028375

Device     Boot Start       End   Sectors  Size Id Type
/dev/sdb1         256 732558335 732558080  2.7T 83 Linux

The other USB drive, /dev/sdc1 is formatted as NTFS and I use fuse to
access it. This drive is not causing the issues. I want that drive to be
Windows compatible as I mentioned before.

root at orca:/home/mark# fdisk -l /dev/sdc
Disk /dev/sdc: 1.8 TiB, 2000365289472 bytes, 3906963456 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x48f9a2e9

Device     Boot Start        End    Sectors  Size Id Type
/dev/sdc1        2048 3906963455 3906961408  1.8T  7 HPFS/NTFS/exFAT

I don't think I have to change anything in the partition table for
/dev/sdb1. Or, am I missing something?

Mark

On Sat, Dec 10, 2016 at 11:41 AM, Matt Graham <mhgraham at crow202.org> wrote:

> On 2016-12-10 11:18, Mark Phillips wrote:
>
>> On Sat, Dec 10, 2016 at 9:27 AM, Anon Anon <lokotejones at gmail.com> wrote:
>>
>>> Disk label type DoS and NTFS? I bet if you could reformat those
>>>
>> sdb is formatted as ext4. Not sure why fdisk shows [NTFS].
>> /dev/sdb1      ext4 2884121824 1265247048 1472346776  47% /media/backup
>>
>
> Also, the NTFS drive is not causing the issue. It is the ext4 drive.
>>
>
> The partition table has a "partition type" byte in it, and the partition
> table on sdb has sdb1 as 0x07 (NTFS).  The filesystem on sdb1 is ext4.
> Most Linux utilities don't pay any attention to the "partition type" byte.
> Your machine's BIOS, however, might.  BIOSes have very small brains, and
> "partition type NTFS but the filesystem isn't NTFS" may be confusing it.
> If I were you, I'd use fdisk to change sdb1 to type 0x83 (Linux) and see if
> that helps.
>
> --
> Crow202 Blog: http://crow202.org/wordpress
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> But only Light too dim for us to see.
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