sudo mkfs.ext3 /dev/sdb4
http://g300nh.blogspot.com/2010/06/software-installation-on-dd-wrt-part-1.html https://www.myopenrouter.com/forum/dd-wrt-wnr3500l-jffsetcipkgconf-no-such-file https://tongwing.woon.sg/blog/tag/ipkg/ https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=86912 https://forum.dd-wrt.com/phpBB2/viewtopic.php?p=821913 https://forum.dd-wrt.com/phpBB2/viewtopic.php?p=777884#777884