BUILD: 1.6_M1: 215dab864e7cf74394840621ad0754db593708f1
ENVIRONMENT: Multiple environments
STEPS TO REPRODUCE: 
1. set IMAGE_FSTYPES = "btrfs" and KERNEL_FEATURES_append = " cfg/fs/btrfs " in local.conf
2. build core-image-minimal image and boot it up

EXPECTED OUTCOME: btrfs format image could be booted up

ACTUAL OUTCOME:

| Running intercept scripts:
| WARNING: The license listed MIT was not in the licenses collected for packagegroup-core-boot
| log_check: Using /home/ionut/work/poky/build/tmp/work/qemux86-poky-linux/core-image-minimal/1.0-r0/temp/log.do_rootfs.3458 as logfile
| Logfile is clean
|  Removing any system startup links for run-postinsts ...
|   /home/ionut/work/poky/build/tmp/work/qemux86-poky-linux/core-image-minimal/1.0-r0/rootfs/etc/rcS.d/S99run-postinsts
|  Removing any system startup links for run-postinsts ...
| Building feeds for [poky]..
| executing: ldconfig -r /home/ionut/work/poky/build/tmp/work/qemux86-poky-linux/core-image-minimal/1.0-r0/rootfs -c new -v
| /lib:
| 	libcrypt.so.1 -> libcrypt-2.18.so
| 	libblkid.so.1 -> libblkid.so.1.1.0
| 	libnss_dns.so.2 -> libnss_dns-2.18.so
| 	libnss_compat.so.2 -> libnss_compat-2.18.so
| 	libdl.so.2 -> libdl-2.18.so
| 	libresolv.so.2 -> libresolv-2.18.so
| 	librt.so.1 -> librt-2.18.so
| 	libutil.so.1 -> libutil-2.18.so
| 	libBrokenLocale.so.1 -> libBrokenLocale-2.18.so
| 	libuuid.so.1 -> libuuid.so.1.3.0
| 	libnsl.so.1 -> libnsl-2.18.so
| 	libanl.so.1 -> libanl-2.18.so
| 	libc.so.6 -> libc-2.18.so
| 	ld-linux.so.2 -> ld-2.18.so
| 	libz.so.1 -> libz.so.1.2.8
| 	libnss_files.so.2 -> libnss_files-2.18.so
| 	libpthread.so.0 -> libpthread-2.18.so
| 	libm.so.6 -> libm-2.18.so
| /usr/lib:
| 	libkmod.so.2 -> libkmod.so.2.2.5
| saving cache in little endian encoding
| Size before prelinking 5860.
| Size after prelinking 5944.
| Error: error checking /home/ionut/work/poky/build/tmp/deploy/images/qemux86/core-image-minimal-qemux86-201SMALL VOLUME: forcing mixed metadata/data groups
| WARNING: exit code 1 from a shell command.
| ERROR: Function failed: do_rootfs (log file is located at /home/ionut/work/poky/build/tmp/work/qemux86-poky-linux/core-image-minimal/1.0-r0/temp/log.do_rootfs.3458)
ERROR: Task 7 (/home/ionut/work/poky/meta/recipes-core/images/core-image-minimal.bb, do_rootfs) failed with exit code '1'
NOTE: Tasks Summary: Attempted 1779 tasks of which 300 didn't need to be rerun and 1 failed.
No currently running tasks (1779 of 1780)

Summary: 1 task failed:
  /home/ionut/work/poky/meta/recipes-core/images/core-image-minimal.bb, do_rootfs
Summary: There were 4 WARNING messages shown.
Summary: There was 1 ERROR message shown, returning a non-zero exit code.