Yi Zhao d15a8d87b6 opkg-keyrings: check if opkg-key exists before run postinst
By default, the opkg-key command is not included in pokg package because
it is only installed when gpg support is enabled. We'd better check if
it exists before run 'opkg-key populate' in pkg_postinst.

(From OE-Core rev: 096a03659cdfa99ca2b4b50ff37d6f2001d0bc90)

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2020-05-09 18:57:21 +01:00

QEMU Emulation Targets
======================

To simplify development, the build system supports building images to
work with the QEMU emulator in system emulation mode. Several architectures
are currently supported in 32 and 64 bit variants:

  * ARM (qemuarm + qemuarm64)
  * x86 (qemux86 + qemux86-64)
  * PowerPC (qemuppc only)
  * MIPS (qemumips + qemumips64)

Use of the QEMU images is covered in the Yocto Project Reference Manual.
The appropriate MACHINE variable value corresponding to the target is given
in brackets.
Description
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