Kohei Nozaki's blog 

The book seems little obsolete because it was published on 2009 and intended to use with version 4.0. but most part of the book makes sense to me because major features of Roller are unchanged till current version 5.1.1.

A instruction about weblog itself is interested and fun to read. the book has many step-by-step instruction about its function and it's very easy to read. especially, instruction of creating a new template from scratch was good for me. some contents are obsoleted surely but I can recommend this book for beginners of Roller.

But maybe you should read the official documents first than buy this book. official document can be obtained from here as PDF or ODT.

NOTE: an additional Section 9, which is not included the book and the book claims that it can be downloaded via packtpub.com but the URL returns 404 now. the support desk send me PDF after I sent an email to ask how can I get section 9. they said the link got updated after renewal of their web site. it needs to add /sites/default/ as prefix of the path now.

What are the good points of virtual machines?

I'm working to move my personal financial system which is running on a physical machine to virtual machine because its simplicity of maintenance and portability. currently I'm running the system on tower form PC, but it makes annoying noise, and it consumes power much, so I'm going to make the system virtual, and move it to my old MacBook or something.

Backup of virtual machines are so easy because it exists as regular files in the physical machine, and it can be automated easily thanks to OS X's TimeMachine and VMware Fusion's snapshot. and I can easily move its machine running on in case I need to do it. when I want to do some heavy calculation, I can easily copy the whole of the virtual machine to another high-performance environment anytime while running it on low power-consuming machine regularly.

Installation 

VMware Fusion 6.0.2 supplies "easy installation" function for CentOS 6.5 (not for 7.0). which answers annoying questions instead of me during installation process. all I need to answer were username and password to use. then, VMware will getting almost all of my work done contains installation of VMware Tools. several minutes after, you'll see GUI login prompt. for my purpose GUI is unnecessary but I don't want to do these annoying work by myself so I just followed this way.

I made some changes before installation begins such as following:

• Increase HDD size to 384GB (There's no need to reserve that actual size in the host machine. actual size increases with actual use in the virtual machine. Increasing of size is impossible when snapshots available, but it's possible after deleting all of snapshots)
• Increase CPU number to 2
• Increate amount of memory to 2GB
• Set network interface to physical (I want to login via ssh from my LAN)
• Enable VNC daemon

[kyle@localhost ~]$ df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3       374G  2.6G  353G   1% /
tmpfs           935M  228K  935M   1% /dev/shm
/dev/sda1       291M   39M  238M  14% /boot