Extracting from /media/b/pk--thumb/chapters.rar
Extracting chapters.doc Failed
Although i could'nt sort out the problem but here is an alternative to unrar .rar files in linux.I have tried it in Debian Lenny.
First download a package from http://www.rarlab.com/rar/rarlinux-3.9.2b1.tar.gz
Untar rarlinux using tar xvvf rarlinux-3.9.2b1.tar.gz
Now navigate to the rarlinux directory and type make as su
Now you are done to using unrar.To unrar a file navigate to the rarlinux directory and type
unrar e (target .rar file)