Kevin Hao b617cd5b47 wic/filemap: Fall back to standard copy when no way to get the block map
For some filesystems, such as aufs which may be used by docker container,
don't support either the SEEK_DATA/HOLE or FIEMAP to get the block
map. So add a FileNobmap class to fall back to standard copy when there
is no way to get the block map.

[Yocto #12988]

(From OE-Core rev: 7934ed49179242f15b413c0275040a3bb6b68876)

Signed-off-by: Kevin Hao <kexin.hao@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2020-07-18 11:06:31 +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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Readme 251 MiB