On Friday, 2 October 2020 4:11:24 PM AEST Andrew Pam via luv-main wrote:
> On 2/10/20 3:55 pm, Russell Coker via luv-main wrote:
> > Any ideas as to why a system might want to boot FreeDOS but not GRUB?
>
> Check the BIOS settings - USB booting can emulate a floppy disk, a
> CD-ROM, an LS120 SuperDisk or a native USB mass storage device.

Thanks for the suggestion, the HP BIOS settings are awkward in regard to
floppy/cd/hard drive which makes me lack confidence in them doing the right
thing.

Here is the Linux boot device I'm trying to use:

Disk /dev/sdb: 3.8 GiB, 4026531840 bytes, 7864320 sectors
Disk model: Flash Disk     
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: 0x00fe7504

Device     Boot Start     End Sectors Size Id Type
/dev/sdb1        2048 6293503 6291456   3G 83 Linux

Here is the FreeDOS boot device.  They both seem to be configured as hard
drives.

Disk /dev/sdc: 7.5 GiB, 8054112256 bytes, 15730688 sectors
Disk model: USB Disk       
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: 0x00000000

Device     Boot Start    End Sectors  Size Id Type
/dev/sdc1  *       63  63377   63315 30.9M  4 FAT16 <32M
/dev/sdc2       63488 129023   65536   32M  4 FAT16 <32M


--
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