I added BBMASK = "meta-ti/recipes-misc" to local.conf as instructed in http://git.yoctoproject.org/cgit/cgit.cgi/meta-ti/tree/README

but get errors when bitbaking:

$ MACHINE=beaglebone bitbake core-image-minimal
Pseudo is not present but is required, building this first before the main build
Parsing recipes: 100% |#########################################| Time: 00:01:03
Parsing of 895 .bb files complete (0 cached, 895 parsed). 1204 targets, 74 skipped, 7 masked, 0 errors.
ERROR: No recipes available for:
  /media/toshiba-usb3/work/poky/meta-ti/recipes-graphics/mesa/mesa_9.1.6.bbappend
ERROR: Command execution failed: Exited with 1

Summary: There were 2 ERROR messages shown, returning a non-zero exit code.