[Buildroot] missing /proc in romfs

[Buildroot] missing /proc in romfs

[Mike Sander]

According to the buildroot docs the filesystem skeleton is available in 
/generic/target_skeleton.     The target_skeleton does include /proc.  
After I do a make, the project_build_arm/uclibc/root/ does NOT contain a 
/proc filesystem.  I'm not sure if other bits are missing. 

I have studied the output of the make process and have not been able to 
see where the basic filesystem is created.  I can see where specific 
bits are added to /etc /lib.   Could someone be so kind as to describe 
the initial steps in building the root filesystem  (and where 
target_skeleton fits in).   A brief list of the makefiles (and make 
targets) would be helpful.

Thanks in advance

Mike Sander

[Buildroot] missing /proc in romfs

[Hamish Moffatt]

On Tue, May 06, 2008 at 02:39:44PM -0400, Mike Sander wrote:
> According to the buildroot docs the filesystem skeleton is available in 
> /generic/target_skeleton.     The target_skeleton does include /proc.  
> After I do a make, the project_build_arm/uclibc/root/ does NOT contain a 
> /proc filesystem.  I'm not sure if other bits are missing. 

Correct, /proc will be an empty directory. The target system will mount
procfs onto /proc during boot, usually from /etc/rc or a similar script.

> I have studied the output of the make process and have not been able to 
> see where the basic filesystem is created.  I can see where specific 
> bits are added to /etc /lib.   Could someone be so kind as to describe 
> the initial steps in building the root filesystem  (and where 
> target_skeleton fits in).   A brief list of the makefiles (and make 
> targets) would be helpful.

The main Makefile has a target $(PROJECT_BUILD_DIR)/.root which copies
the target_skeleton into the project_build_$arch/$project/root
directory, and then other packages are installed into that some root.


Hamish
-- 
Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>