Re: [Bug-xorriso] Acer Aspire V5-121 doesn't see USB ISO as bootable

[Carlo Caione]

On Sun, Feb 26, 2017 at 12:06 PM, Carlo Caione <address@hidden> wrote:
> On Fri, Feb 24, 2017 at 9:33 PM, Thomas Schmitt <address@hidden> wrote:
>> Hi,
>
> Hey Thomas,
>
>> Carlo Caione:
>>> so basically an ISO generated by "mbr_only_copy" method BUT (and this
>>> is the most important thing) to have the image recognized by the UEFI
>>> we had to change the partition type of the main partition from 0x83 to
>>> 0x00 with something like:
>>> printf "\x00" | dd of=${OUTPUT} bs=1 count=1 seek=450 conv=notrunc
>>
>> Is it verified that "mbr_only" without "copy" does not work if the
>> ISO partition gets type 0x00 ?
>
> Yup. We just verified this and "mbr_only" without "copy" works fine
> only if the ISO partition has type 0x00.

Ups I misread your question and my reply could be misleading.
So "mbr_only" and "mbr_only_copy" both work fine only with the
partition type 0x00. Otherwise the USB driver is not recognized by
UEFI.

-- 
Carlo Caione  |  +39.340.80.30.096  |  Endless