I followed the intructions here
http://archlinuxarm.org/forum/viewtopic.php?f=29&t=3788#p21356 to update glibc and it all went through ok. But afterwards, pogo won't boot and get stuck at the flashing light. (It initially flashes green then changes to flashing yellowish after about 30sec.) I took the usb drive to a linux machine and checked that /lib is a symlink to /usr/lib, which, according to arch wiki, is a sign of successful update of glibc. Any ideas what goes wrong here? Thanks.