The GPT partition layout supports partition attributes.
The CLI sfdisk sets the partition attributes using the option
--part-attrs. See the examples below:
$ cat <<EOF | sfdisk disk.img
label: gpt
type=C12A7328-F81F-11D2-BA4B-00A0C93EC93B, size=64M
type=0FC63DAF-8483-4772-8E79-3D69D8477DE4
EOF
(...)
$ sfdisk --part-attrs disk.img 1 RequiredPartition,NoBlockIOProtocol,LegacyBIOSBootable,48
(...)
$ sfdisk --part-attrs disk.img 2 60,61,62,63
(...)
$ sfdisk --dump disk.img
(...)
disk.img1 : start= 2048, size= 131072, type=C12A7328-F81F-11D2-BA4B-00A0C93EC93B, uuid=BBE806BB-8567-A843-9FF5-9B6B35D2908E, attrs="RequiredPartition NoBlockIOProtocol LegacyBIOSBootable GUID:48"
disk.img2 : start= 133120, size= 1963999, type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, uuid=7DB39F08-C138-664B-B38E-ED2DEB549AA6, attrs="GUID:60,61,62,63"
This commit introduces the new job set-partition-attributes that is used
in the new-operation to set the attributes of the partition. The job
uses the newly introduced method setPartitionAttributes that is
implemented by the sfdisk and dummy backends.
Note: This is a copypaste of what was done for GPT partition label in
commit f585f6c (Add new job to set the GPT partition label) and GPT
partition UUID in commit 1dde035 (Add new job to set the GPT partition
UUID).
Note: RequiredPartition, NoBlockIOProtocol, LegacyBIOSBootable are
key words for 0, 1 and 2.
The GPT UUID are generated by the backends automatically once a
partition is created.
This reads the UUID that was generated after the creation of a partition
and stores it back to the object Partition.
The GPT partition layout supports unique GUID partitions.
The CLI sfdisk sets the partition UUID using the option --part-uuid.
See the examples below:
$ cat <<EOF | sfdisk disk.img
label: gpt
type=C12A7328-F81F-11D2-BA4B-00A0C93EC93B, size=64M
type=0FC63DAF-8483-4772-8E79-3D69D8477DE4
EOF
(...)
$ sfdisk --dump disk.img
(...)
disk.img1 : start= 2048, size= 131072, type=C12A7328-F81F-11D2-BA4B-00A0C93EC93B, uuid=BBE806BB-8567-A843-9FF5-9B6B35D2908E
disk.img2 : start= 133120, size= 1963999, type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, uuid=7DB39F08-C138-664B-B38E-ED2DEB549AA6
$ sfdisk --part-uuid disk.img 1 00000000^C000-0000-0000-000000000000
(...)
$ sfdisk --part-uuid disk.img 2 11111111-1111-1111-1111-111111111111
(...)
$ sfdisk --dump disk.img
(...)
disk.img1 : start= 2048, size= 131072, type=C12A7328-F81F-11D2-BA4B-00A0C93EC93B, uuid=00000000-0000-0000-0000-000000000000
disk.img2 : start= 133120, size= 1963999, type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, uuid=11111111-1111-1111-1111-111111111111
This commit introduces the new job set-partition-uuid that is used in
the new-operation to set the UUID of the partition. The job uses the
newly introduced method setPartitionUUID that is implemented by the
sfdisk and dummy backends.
Note: This is a copypaste of what was done for GTP partition label in
commit f585f6c (Add new job to set the GPT partition label).
The GPT partition layout supports naming partitions.
The support for the partition label was added in the backend libparted
since commit 28fa6ac (Add support for GTP partition labels).
The libparted was removed later by commit 8fa1814 (Remove libparted
backend) and no backend sets the partition label.
The CLI sfdisk sets the partition label using the option --part-label.
See the examples below:
$ cat <<EOF | sfdisk disk.img
label: gpt
type=C12A7328-F81F-11D2-BA4B-00A0C93EC93B, size=64M
type=0FC63DAF-8483-4772-8E79-3D69D8477DE4
EOF
(...)
$ sfdisk --part-label disk.img 1 efi
(...)
$ sfdisk --part-label disk.img 2 rootfs
(...)
$ sfdisk --dump disk.img
(...)
disk.img1 : start= 2048, size= 131072, type=C12A7328-F81F-11D2-BA4B-00A0C93EC93B, uuid=D08E5B2A-4649-9F4A-AEA3-6C3048888EAA, name="efi"
disk.img2 : start= 133120, size= 1963999, type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, uuid=0BEEFE82-19EA-DC4C-BB6A-27B6DA0C3BD2, name="rootfs"
This commit introduces the new job set-partition-label that is used in
the new-operation to set the label of the partition. The job uses the
newly introduced method setPartitionLabel that is implemented by the
sfdisk and dummy backends.
- Including ExternalCommandHelper::ping slot to receive pings.
- Including timer to watch last ping in the service to unregister it after reaching 42 seconds without pings.
- Stop helper before starting a new in CoreBackendManager::startExternalCommandHelper
- Unregister org.kde.kpmcore.helperinterface service in ExternalCommandHelper::exit
Caveats:
* copyblocks are not converted yet, but should be similar.
* There is no signaling back to main application which tells when even loop has started, so after password is entered, you need to click F5 to rescan devices
* There are some security checks but are they sufficient
This allows to use different implementations on different platforms.
E.g. libblkid is not available on FreeBSD.
libparted backend still uses the same libblkid implementation
sfdisk backend reads label and UUID from udev database
setFlags function now takes additional argument const Partition& partition.
This allows us to completely remove CoreBackendPartition class.
Remove getPartitionBySector and getExtendedPartitions.
These functions were designed around libparted API and are not very convenient
with other backends.
Andrius Štikonas
Gaël PORTAY
Yuri Chornoivan
Caio Carvalho
Adriaan de Groot