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This class allow the extlinux.conf generation for U-Boot use.
The U-Boot support for it is given to allow the Generic Distribution
Configuration specification use by OpenEmbedded-based products.
This class can be inherited by u-boot recipes to create extlinux.conf
and boot using menu options.
U-boot with extlinux support is machine dependent, so to use this class
you need to set UBOOT_EXTLINUX to 1 in machine configuration file and
also set root= kernel cmdline UBOOT_EXTLINUX_ROOT. This variable is used
to pass root kernel cmdline, e.g:
UBOOT_EXTLINUX_ROOT = "root=/dev/mmcblk2p2"
(From OE-Core rev: 7c18abeb2a6ef8b7bb53aa92a9ee76bd465fada2)
Signed-off-by: Fabio Berton <fabio.berton@ossystems.com.br>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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