openembedded-core.git/scripts/lib/wic, branch 2016-10

canned-wks: use GPT partition table

2016-10-11T07:26:09+00:00

According to UEFI specification all EFI platforms must support
GUID Partition Table(GPT) disk layout. Here is a list of advantages
of using GPT disk layout over the legacy MBR partitioning:

 - Logical Block Addresses (LBAs) are 64 bits (rather than 32 bits).
 - Supports many partitions (rather than just four primary partitions).
 - Provides both a primary and backup partition table for redundancy.
 - Uses version number and size fields for future expansion.
 - Uses CRC32 fields for improved data integrity.
 - Defines a GUID for uniquely identifying each partition.
 - Uses a GUID and attributes to define partition content type.
 - Each partition contains a 36 character human readable name.

Used GPT partitioning in all EFI kickstart files.
Tested result images on NUC, MinnowBoard MAX and MinnowBoard Turbot.

Signed-off-by: Ed Bartosh 
Signed-off-by: Richard Purdie

systemd-bootdisk.wks: update kernel command line

2016-10-11T07:26:09+00:00

Used ttyS0 console.
Removed usage of ttyPCH0 (FRI2 leftover)
Decreased bootloader timeout to 5 seconds
Removed 'vmalloc=256MB snd-hda-intel.enable_msi=0' as it's not
needed for any of reference BSPs.

Signed-off-by: Ed Bartosh 
Signed-off-by: Richard Purdie

mkgummidisk.wks: update kernel command line

2016-10-09T07:29:05+00:00

Used ttyS0 console.
Removed usage of ttyPCH0 (FRI2 leftover)
Decreased bootloader timeout to 5 seconds
Removed 'vmalloc=256MB snd-hda-intel.enable_msi=0' as it's not
needed for any of reference BSPs.

Signed-off-by: Ed Bartosh 
Signed-off-by: Richard Purdie

mkefidisk.wks: update kernel command line

2016-10-07T15:43:50+00:00

Used ttyS0 console.
Removed usage of ttyPCH0 (FRI2 leftover)
Decreased bootloader timeout to 5 seconds
Removed 'vmalloc=256MB snd-hda-intel.enable_msi=0' as it's not needed
for any of reference BSPs.

Signed-off-by: Ed Bartosh 
Signed-off-by: Richard Purdie

mkefidisk.wks: use MSDOS partition table

2016-10-07T15:43:50+00:00

Stopped using GPT partition table in mkefidisk.wks as it's not
supported by all reference hardware.

Signed-off-by: Ed Bartosh 
Signed-off-by: Richard Purdie

wic: rewrite MBR disk identifier

2016-10-07T15:43:50+00:00

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 
Signed-off-by: Richard Purdie

wic: generate PARTUUID for MDOS partitions

2016-10-07T15:43:50+00:00

Added generation of partition UUIDs for MSDOS partitions.
UUID for MSDOS partitions is -,
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 
Signed-off-by: Richard Purdie

wic: set PARTUUID only for gpt partition table

2016-10-07T15:43:50+00:00

sgdisk fails to set PARTUUID for msdos partitions as it's only
supported for GPT partitions.

Checked partition table format to run sgdisk --partition-guid
only for GPT partitions.

Signed-off-by: Ed Bartosh 
Signed-off-by: Richard Purdie

mkefidisk.wks: use partition UUID and GPT partition table

2016-09-30T16:14:43+00:00

This is a preparation to use mkefidisk as a default wks for
genericx86* BSPs. This change enables usage of partition UUID
instead of device name to specify root partition in kernel
command line. It should make images to boot on devices with
boot device names that differ from what's mentioned in wks file.

Signed-off-by: Ed Bartosh 
Signed-off-by: Richard Purdie

wic: rename and amend systemd-boot wks file

2016-09-30T16:11:31+00:00

Rename wks for systemd-boot per the suggestion from community.
Also amend description to distinguish it from others when
running "wic list images".

Signed-off-by: Jianxun Zhang 
Signed-off-by: Ross Burton