So I spent a bit of time today getting beta-1.
First thing I did after logging in was to run 'yum update' It is hung during cleanup. Here is where it stopped:
Cleanup : firewalld-config-standard-0.3.11-3.fc21.noarch 77/121 Cleanup : firewalld-0.3.11-3.fc21.noarch 78/121 [ 1541.629825] Ebtables v2.0 unregistered [ 1543.420638] nf_conntrack version 0.5.0 (16384 buckets, 65536 max) [ 1543.481335] ip6_tables: (C) 2000-2006 Netfilter Core Team [ 1543.652587] Ebtables v2.0 registered Cleanup : libselinux-utils-2.3-4.fc21.armv7hl 79/121 Cleanup : libselinux-python-2.3-4.fc21.armv7hl 80/121 Cleanup : man-db-2.6.7.1-8.fc21.armv7hl 81/121 Cleanup : initial-setup-0.3.23-2.fc21.armv7hl 82/121
I did the yum update from the serial console. I am also logged in via ssh if there is some other information you want to see...