rootfs porting to mipsel 32 bit - MIPS 1004K

I got an embedded Linux board (mipsel 32 bit - MIPS 1004K) with rootfs.cpio
.  Unfortunately, the rootfs is pretty old -customized from Debian MIPS
port release, based on Debian 6.  I need to upgrade it to the latest
version with gcc 4.9 since our application uses some of C++11 features.  I
come from ARM/BuildROOT.  After I have read through the webpage
https://www.debian.org/ports/mips/ ,   not much detailed info was found out
about porting rootfs.

Here is my question list that might need your help for advice:

  It (a)sounds like I need to mipsel linux machine. Any instruction to
access mipsel-aql-01.debian.org ?

      (b) Any tools available to select packages to build rootfs ?

Thank you so much.

Lijun Qin



I list the structure of original rootfs(528M) (Actually, it pretty much has
everything needed for development )

root@xx:/usr/bin# g++ -v
Using built-in specs.
Target: mipsel-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.4.5-8'
--with-bugurl=file:///usr/share/doc/gcc-4.4/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.4 --enable-shared --enable-multiarch
--enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix
--with-gxx-include-dir=/usr/include/c++/4.4 --libdir=/usr/lib --enable-nls
--enable-clocale=gnu --enable-libstdcxx-debug --disable-libssp
--enable-targets=all --enable-checking=release --build=mipsel-linux-gnu
--host=mipsel-linux-gnu --target=mipsel-linux-gnu
Thread model: posix
gcc version 4.4.5 (Debian 4.4.5-8)



evalkit@Debian82_EvalKit_Lijun:~/workspace/rootfs$ ls -al

total 125188

drwxr-xr-x 19 evalkit evalkit      4096 Oct  7 09:11 .

drwxr-xr-x  8 evalkit evalkit       4096 Oct  7 13:42 ..

drwxr-xr-x  2 evalkit evalkit       4096 Oct  7 09:11 bin

drwxr-xr-x  4 evalkit evalkit       4096 Oct  7 09:09 dev

drwxr-xr-x 68 evalkit evalkit      4096 Oct  7 09:11 etc

drwxr-xr-x  2 evalkit evalkit       4096 Oct  7 09:09 home

drwxr-xr-x 11 evalkit evalkit      4096 Oct  7 09:09 lib

drwx------  2 evalkit evalkit        4096 Oct  7 09:09 lost+found

drwxr-xr-x  2 evalkit evalkit      4096 Oct  7 09:09 mnt

drwxr-xr-x  3 evalkit evalkit      4096 Oct  7 09:09 opt

drwxr-xr-x  2 evalkit evalkit      4096 Oct  7 09:11 proc

drwx------  5 evalkit evalkit       4096 Oct  7 09:09 root

drwxr-xr-x  2 evalkit evalkit      4096 Oct  7 09:11 sbin

drwxr-xr-x  2 evalkit evalkit      4096 Oct  7 09:11 selinux

drwxr-xr-x  2 evalkit evalkit      4096 Oct  7 09:09 srv

drwxr-xr-x  2 evalkit evalkit      4096 Oct  7 09:09 sys

drwxr-xr-x  4 evalkit evalkit      4096 Oct  7 09:09 tmp

drwxr-xr-x 10 evalkit evalkit      4096 Oct  7 09:09 usr

drwxr-xr-x 13 evalkit evalkit      4096 Oct  7 09:11 var