Disk identifier created by parted doesn't match the one we generated
and used in bootloader config. We need to rewrite it to make our image
bootable.

Modified involved API and data structures to access previously
generated disk identifiers after MBR is initialized. Written disk
identifiers to MBR.

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Added generation of partition UUIDs for MSDOS partitions.
UUID for MSDOS partitions is <disk identifier>-<partition number>,
where disk identifier is a random 4 bytes long number. It's usually
generated when MBR/partition table is initialized.

As UUID is used to point to the root partition in bootloader config
we need to generate it before the MBR is initialized.
After MBR is created we need to rewrite system identifier to match
it with what is used in bootloader config. This will be implemented
in the next commit.

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

This option enables generation of <image>.bmap file for the
result image using native bmaptool.

[YOCTO #9413]

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

New syntax 'except Exception as err' is supported by Python >= 2.7.
Old syntax 'except Exception, err' is not supported by Python 3.

Used new syntax to be able to run wic on Python 3.

[YOCTO #9412]

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

'with' statement is not used in baseimager.py
It's supported by Python 2.7, which is included into all target
distros. Other wic modules use this statement.

Removed useless 'from __future__ import with_statement' from
wic code.

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

All classes in Python3 are new style classes and don't need
to be inherited from object. Wic code works fine without
this inheritance even with Python2, so it's harmless to
remove it.

[YOCTO #9412]

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Replaced calls of dict.keys and dict.has_key methods with the
'key in dict' statement. 'key in dict' is more pythonic, faster
and readable. dict.has_key doesn't exist in Python 3.

[YOCTO #9412]

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Moved DiskImage class from utils/fs_related.py to
imager/direct.py as it's only used there.

Removed fs_related module as it doesn't contain anything
except of DiskImage.

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Added new argument to add_partition call to pass partition
system id down the stack.

[YOCTO #9096]

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>

Interesting bug was found during implementation of 'include'
parser command.

Build directory was removed in do_configure_partition method of
bootimg- source plugins. This can cause removal of previously
prepared partition images if /boot partition is mentioned after
other partitions in .ks file.

Moved work directory removal to direct.py before processing
partitions.

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>