I use
cpio -idv <rootfs
to extract what all is inside my rootfs.cpio file.
Following are the contents of a defualt rootfs.cpio that I get after compiling petalinux:
[root@xilinx ourput]# ls -ld *
drwxr-xr-x. 2 root root 4096 Apr 14 14:12 bin
drwxr-xr-x. 2 root root 4096 Apr 14 14:12 boot
drwxr-xr-x. 3 root root 4096 Apr 14 14:12 dev
drwxr-xr-x. 15 root root 4096 Apr 14 14:12 etc
drwxr-xr-x. 3 root root 4096 Apr 14 14:12 home
lrwxrwxrwx. 1 root root 9 Apr 14 14:12 init -> sbin/init
drwxr-xr-x. 3 root root 4096 Apr 14 14:12 lib
drwxr-xr-x. 10 root root 4096 Apr 14 14:12 media
drwxr-xr-x. 2 root root 4096 Apr 14 14:12 mnt
drwxr-xr-x. 2 root root 4096 Apr 14 14:12 proc
drwxr-xr-x. 2 root root 4096 Apr 14 14:12 sbin
drwxr-xr-x. 2 root root 4096 Apr 14 14:12 sys
lrwxrwxrwx. 1 root root 8 Apr 14 14:12 tmp -> /var/tmp
drwxr-xr-x. 9 root root 4096 Apr 14 14:12 usr
drwxr-xr-x. 8 root root 4096 Apr 14 14:12 var
also the following is the size of each folder:
[root@xilinx ourput]# du -sb *
680661 bin
4096 boot
8192 dev
160521 etc
8192 home
9 init
2572159 lib
36864 media
4136 mnt
4096 proc
730887 sbin
4096 sys
8 tmp
518578 usr
176548 var
The total size of the filesystem is around 6.9 MB which is too much for my system. I just need a login prompt in my application and nothing else, so why shoiud l I have so much of unnecessary stufs.
What should be my approach to remove packages I dont need, and reatin only login application. I saw in sbin there is a binary tinylogin, so would liek to keep it.But I think cannot blindly remove other files.
So what is the correct approach to reduce the size of the rootfs.cpio
Update
I woulkd like to tell that I have got a file named tinylogin, in sbin filder which provides login that I will need. But I have no idea what to do next!
