Hi Remgopal, On Wed, May 14, 2008 at 08:58:47AM -0700, Ramgopal Kota wrote: > Now I want to have the rootfs (jffs) on flash. Is there any document > which tells me how to do that ? As a learning exercise you could start by reading the Filesystem Hierarchy Standard: http://www.pathname.com/fhs/. This is a great document to give you some insight into a Unix filesystem. With that basic knowledge you can start to build your own filesystem. It's not that hard. Just use a standard Debian (that's what I did) mipsel installation and copy everything you need from it to your own filesystem. What do you need and what not? Well, you start with /sbin/init, since that is the very first process the Linux kernel starts when it is done with itself. So make sure that is in place. Next use ldd to find out what libraries it needs. Copy those in place too. Run ldd too for every library, to get it's dependings too. Next you put /etc/inittab in place. Read it carefully and follow all its scripts in it. Of course copy those in place too and all the tools all those scripts need. Again, for all the tools run ldd to find the libraries needed. In the start it looks like a lot, but you'll soon find out most basic pieces of the system use the same libraries over and over again. You can also copy the /dev directory from the Debian installation to your own filesystem. This way you will build a very basic and clean system and more important you will learn how a Linux system boots. For me back then it was a real eye opener when I read the aforementioned FHS document and just started by following all scripts mentioned in /etc/inittab. It takes some time, but it's worth the exercise! Good luck! -- $ cat ~/.signature Freddy Spierenburg <freddy@xxxxxxxxxxxxxxx> http://freddy.snarl.nl/ GnuPG: 0x7941D1E1=C948 5851 26D2 FA5C 39F1 E588 6F17 FD5D 7941 D1E1 $ # Please read http://www.ietf.org/rfc/rfc2015.txt before complain!
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