Steve Agnew wrote: 
> Hi Greg,
> 
> I checked the OSX error log which showed an error reported by fsck_msdos
> before trying to mount the .img file. Running this in a terminal window
> gives the following error:
> 
> Macintosh:~ steve$ fsck_msdos
> /Users/steve/Desktop/piCorePlayer1.21_RPI2.img 
> ** /Users/steve/Desktop/piCorePlayer1.21_RPI2.img
> Invalid BS_jmpBoot in boot block: fab800
> 
> After searching online for this error, I came across the testdisk
> utility.
> 
> This reports:
> 
> TestDisk 7.0, Data Recovery Utility, April 2015
> Christophe GRENIER <gren...@cgsecurity.org>
> http://www.cgsecurity.org
> 
> Disk /Users/steve/Desktop/piCorePlayer1.21_RPI2.img - 68 MB / 65 MiB -
> CHS 9 255
> Current partition structure:
> Partition                  Start        End    Size in sectors
> 
> Warning: number of heads/cylinder mismatches 4 (FAT) != 255 (HD)
> Warning: number of sectors per track mismatches 16 (FAT) != 63 (HD)
> 1 P FAT32 LBA                0  32 33     2 172 42      40960 [piCore]
> 
> Warning: Bad starting cylinder (CHS and LBA don't match)
> 2 P Linux                    2 172 43     8  38 30      87936
> 
> Warning: Bad starting cylinder (CHS and LBA don't match)
> No partition is bootable
> 
> I've got no idea what this means but I hope it is helpful. I've tried
> three different cards from 4GB, 8GB and 32GB and got the same error on
> each.
> 
> I'm using Apple-Pi Baker to copy the img file onto a Micro-SD card.
> 
> Regards, Steve.

Thanks Steve... I think...

This has led me into a place that I am not sure I want to be.

regards
Greg


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