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Hongzhi.Song
4ca9402c37
Udev-extraconf works correctly with sysvinit in the aspect of automounting
block devices. But it has a serious problem in case of systemd. Block devices
automounted by udev is unaccessible to host space(out of udevd's private
namespace). For example, we cannot format those block devices.
e.g.
root@qemux86:~# mkfs.ext4 /dev/sda1
mke2fs 1.43.8 (1-Jan-2018)
/dev/sda1 contains a ext4 file system
last mounted on Tue Apr 3 06:22:41 2018
Proceed anyway? (y,N) y
/dev/sda1 is apparently in use by the system; will not make a filesystem here!
Other distributions has no such problem, because they use a series of rules to
manager block devices. Different types of block devices match different rules.
But udev-extraconf just use one rule, automount.rules, which results in this
problem.
The 'systemd-mount' command is recommended by the systemd community to solve such
problems.
This patch makes use of 'systemd-mount' to solve the above problem.
[YOCTO #12644]
(From OE-Core rev: a0b3389c5afc23f622f793cbad8b4135093e6f08)
(From OE-Core rev: 4af22800a7af4fcb80cafe08d982a4850d9dd2ad)
Signed-off-by: Hongzhi.Song <hongzhi.song@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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.