1494 2011-09-18 03:55:55 +0000 [btrfs] kernel not support btrfs 2011-09-21 17:41:00 +0000 1 1 7 Build System, Metadata & Runtime Meta-yocto meta-yocto unspecified x86 Multiple VERIFIED INVALID Medium major 1.1 1 jiajun.xu nitin.a.kamble ke.yu poky.bs.watcher poky.watcher richard.purdie sgw wenhuax.fan --- --- --- oldest_to_newest 16277 0 jiajun.xu 2011-09-18 03:55:55 +0000 tree/branch: poky/1.1_M4 commit: 6462c158fc482e495c1171ffc7747e2ad650a292 With latest 1.1 M4 branch, after I build a minimal image with btrfs enabled and boot up the btrfs image, the kernel will report "no valid root filesystem found". It seems btrfs related config options are not enabled for kernel. 16288 1 sgw 2011-09-19 08:14:24 +0000 Could you please give more information about how you set the flags for the kernel and image type setting? You need to include the following line in your local.conf file: IMAGE_FSTYPES += " btrfs" KERNEL_FEATURES_append = " cfg/btrfs " for some reason += does not work with KERNEL_FEATURES. 16291 2 nitin.a.kamble 2011-09-19 08:56:35 +0000 Jiajun, Saul said it right, the kernel btrfs config needs to be enabled with KERNEL_FEATURES line in the local.conf. Without that kernel will not include the btrfs support. Thanks, Nitin 16292 3 nitin.a.kamble 2011-09-19 08:57:09 +0000 Jiajun, Saul said it right, the kernel btrfs config needs to be enabled with KERNEL_FEATURES line in the local.conf. Without that kernel will not include the btrfs support. Thanks, Nitin 16303 4 jiajun.xu 2011-09-19 22:30:46 +0000 (In reply to comment #3) > Jiajun, > Saul said it right, the kernel btrfs config needs to be enabled with > KERNEL_FEATURES line in the local.conf. Without that kernel will not include > the btrfs support. > Thanks, > Nitin Thanks, Saul, Nitin. After setting KERNEL_FEATURES_append, btrfs option is enabled for kernel. 16304 5 jiajun.xu 2011-09-19 22:31:10 +0000 Verify the bug as INVALID.