[U-Boot] [U-Boot, v2] disk/part_dos: check harder for partition table

[Tom Rini]

On Tue, Apr 09, 2013 at 05:46:14AM -0000, egbert.eich at gmail.com wrote:

> From: Egbert Eich <eich at suse.com>
> 
> Devices that used to have a whole disk FAT filesystem but got then
> partitioned will most likely still have a FAT or FAT32 signature
> in the first sector as this sector does not get overwritten by
> a partitioning tool (otherwise the tool would risk to kill the mbr).
> 
> The current partition search algorithm will erronously detects such
> a device as a raw FAT device.
> 
> Instead of looking for the FAT or FAT32 signatures immediately we
> use the same algorithm as used by the Linux kernel and first check
> for a valid boot indicator flag on each of the 4 partitions.
> If the value of this flag is invalid for the first entry we then
> do the raw partition check.
> If the flag for any higher partition is wrong we assume the device
> is neiter a MBR nor PBR device.
> 
> Signed-off-by: Egbert Eich <eich at suse.com>

Applied to u-boot/master, thanks!

-- 
Tom
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