http://books.google.com.hk/books?id=I-hVqkX6A9cC&printsec=frontcover&dq=Building+Embedded+Linux+Systems&source=bl&ots=auQkfbHh2i&sig=aiGMNvqc5PQTpAPlFABT32aPmQU&hl=zh-CN&ei=iHfmS5-SBIGUkAXn4anmBg&sa=X&oi=book_result&ct=result&resnum=1&ved=0CCMQ6AEwAA#v=onepage&q&f=false
PDF版本也有。