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| author | Ed Bartosh <ed.bartosh@linux.intel.com> | 2016-10-06 13:33:37 +0300 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2016-10-07 16:43:50 +0100 |
| commit | 221d3bdd6e0ab8a4d25e2c96bd976cbec4e76681 (patch) | |
| tree | 36ebfdcdd76558a6cebbfadc029258951e4ef52c /scripts/lib/wic/utils | |
| parent | 6ecc6addf4080eda75a15af077816c81c6bf70a5 (diff) | |
| download | openembedded-core-221d3bdd6e0ab8a4d25e2c96bd976cbec4e76681.tar.gz openembedded-core-221d3bdd6e0ab8a4d25e2c96bd976cbec4e76681.tar.bz2 openembedded-core-221d3bdd6e0ab8a4d25e2c96bd976cbec4e76681.zip | |
wic: rewrite MBR disk identifier
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>
Diffstat (limited to 'scripts/lib/wic/utils')
| -rw-r--r-- | scripts/lib/wic/utils/partitionedfs.py | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/scripts/lib/wic/utils/partitionedfs.py b/scripts/lib/wic/utils/partitionedfs.py index 8d93a68e3a..cb03009fc7 100644 --- a/scripts/lib/wic/utils/partitionedfs.py +++ b/scripts/lib/wic/utils/partitionedfs.py @@ -68,15 +68,17 @@ class Image(): 'offset': 0, # Offset of next partition (in sectors) # Minimum required disk size to fit all partitions (in bytes) 'min_size': 0, - 'ptable_format': "msdos"} # Partition table format + 'ptable_format': "msdos", # Partition table format + 'identifier': None} # Disk system identifier - def add_disk(self, disk_name, disk_obj): + def add_disk(self, disk_name, disk_obj, identifier): """ Add a disk object which have to be partitioned. More than one disk can be added. In case of multiple disks, disk partitions have to be added for each disk separately with 'add_partition()". """ self.__add_disk(disk_name) self.disks[disk_name]['disk'] = disk_obj + self.disks[disk_name]['identifier'] = identifier def __add_partition(self, part): """ This is a helper function for 'add_partition()' which adds a @@ -245,6 +247,12 @@ class Image(): (disk['disk'].device, disk['ptable_format']), self.native_sysroot) + if disk['identifier']: + msger.debug("Set disk identifier %x" % disk['identifier']) + with open(disk['disk'].device, 'r+b') as img: + img.seek(0x1B8) + img.write(disk['identifier'].to_bytes(4, 'little')) + msger.debug("Creating partitions") for part in self.partitions: |