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André Draszik ee9d2f4fcf oeqa/runtime/systemd: skip unit enable/disable on read-only-rootfs
This doesn't work on read-only-rootfs:
    AssertionError: 1 != 0 : SYSTEMD_BUS_TIMEOUT=240s systemctl disable avahi-daemon.service
    Failed to disable unit: File /etc/systemd/system/multi-user.target.wants/avahi-daemon.service: Read-only file system

This patch does two things:
1) Decorate the existing test to be skipped if the rootfs is
   read-only
2) add a new test to be executed only if the rootfs is
   read-only. This new test remounts the rootfs read-write
   before continuing to execute the existing test, making
   sure to clean up correctly after itself (remount r/o
   again).

(From OE-Core rev: ec856301887b1139f93aa54d04bed9b842357b4f)

Signed-off-by: André Draszik <git@andred.net>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2019-10-19 23:18:33 +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.
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