[Parted-maintainers] Bug#896171: MS DOS partition table recognized as Atari AHDI

[Emmanuel Kasper]

Ok i can reproduce the issue using the pc6.mbr posted by bouke:

cp pc6.mbr disk.img
# otherwise parted complains "Can't have a partition outside the disk"
truncate -s 600GB disk.img

# fdisk correctly detects the msdos partition table
fdisk -l disk.img
Disk disk.img: 600 GiB, 644245094400 bytes, 1258291200 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: 0x44a777ed

Device     Boot     Start       End   Sectors  Size Id Type
disk.img1  *         2048    718847    716800  350M 17 Hidd
disk.img2          718848 975747071 975028224  465G  7 HPFS
disk.img3       975747072 976771071   1024000  500M 27 Hidd

# parted fails

parted disk.img print

Disk /home/manu/Téléchargements/disk.img: 644GB
Sector size (logical/physical): 512B/512B
Partition Table: atari
Disk Flags:

Number  Start   End     Size    Type     File system  Flags
 1      8323MB  14,8GB  6446MB  primary               boot


Also using the disktype utility (which knows both msdos and ahdi) the
msdos partition table is properly recognized.

CCing John as he is the original atari patch author

@john: I am heavily suspecting here the disk signature, but maybe you
have a better idea ?