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While file has a large inode number (> 0xFFFFFFFF), mkfs.ext4 could not parse hardlink correctly. Prepare three hardlink files for mkfs.ext4 $ ls -il rootfs_ota/a rootfs_ota/boot/b rootfs_ota/boot/c 11026675846 -rw-r--r-- 3 hjia users 0 Jul 20 17:44 rootfs_ota/a 11026675846 -rw-r--r-- 3 hjia users 0 Jul 20 17:44 rootfs_ota/boot/b 11026675846 -rw-r--r-- 3 hjia users 0 Jul 20 17:44 rootfs_ota/boot/c $ truncate -s 1M rootfs_ota.ext4 $ mkfs.ext4 -F -i 8192 rootfs_ota.ext4 -L otaroot -U fd5f8768-c779-4dc9-adde-165a3d863349 -d rootfs_ota $ mkdir mnt && sudo mount rootfs_ota.ext4 mnt $ ls -il mnt/rootfs_ota/a mnt/rootfs_ota/boot/b 12 -rw-r--r-- 1 hjia users 0 Jul 20 17:44 mnt/a 14 -rw-r--r-- 1 hjia users 0 Jul 20 17:44 mnt/boot/b 15 -rw-r--r-- 1 hjia users 0 Jul 20 17:44 mnt/boot/c After applying this fix $ ls -il mnt/rootfs_ota/a mnt/rootfs_ota/boot/b 12 -rw-r--r-- 3 hjia users 0 Jul 20 17:44 mnt/a 12 -rw-r--r-- 3 hjia users 0 Jul 20 17:44 mnt/boot/b 12 -rw-r--r-- 3 hjia users 0 Jul 20 17:44 mnt/boot/c (From OE-Core rev: 3b2c7350a7f3fb20f2b61ddb41f81959a54bc873) Signed-off-by: Hongxu Jia <hongxu.jia@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.