Base Users Guide: 
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| Prev | Appendix B. Release Notes | Next |
Host-based SSH authentication is now the default. This eliminates the requirement the users have password-less ssh keys and/or mounted home area on remote nodes
Two-factor SSH authentication using Google Authenticator Apps for Android and/or iPhone is supported for any/all users. Users can easily create a time-based verification codes that are used in addition to their usual password.
libqrencode.so and qrencode added to easily generate QR 2-dimensional codes.
New ZFS-linux roll to support the ZFS file system via the ZFS on Linux. Does not support zfs as root file system, yet.
New kernel-org roll to more easily support vanilla linux kernels from kernel.org.
Added Infiniband Support (Mellanox Hardware). Subnet manager runs by default on frontend. Devices properly configured for users to run OpenMPI applications.
Base: removed creation of md5sum of all rpm packages during rocks create distro
Base: now properly configure rsyslog on Rocks 6 (instead of syslog)
Base: properly configure logrotate on Rocks 6
Base: better handlying of "rocks run host" when running command on the local host
Base: added suport for frontend with single partition
Base: new documentation section on ipmi and insert-ethers command line
Base: support for GPT partition table on the compute nodes (disk bigger that 2TB)
Base: Bugfix. Secure Attributes resynchronized after reinstall/reboot.
Base: Bugfix. Fixed "remove appliance" to raise an error if a host with that appliance type stil exists.
Base: Bugfix. Support software RAID-1 for compute node / partitions
Base: Bugfix. For automatic reinstalls, grub configuration modified to add ksdevice= directive
Base: Bugfix. Fixed permissions on file: /etc/security/ca/ca.cfg
Base/Kernel: Bugfix. Kernel roll can now be rebuilt if just the Rocks-trimmed OS Roll is installed. Full CentOS distribution not required.
Kernel: tracker client now checks received rpm with internal rpm md5sum
Ganglia: updated Ganglia to 3.3.7