DSL Tips and Tricks :: Removing Kernel Modules
where is the exact location of "newcd/source/usr/bin" (i.e. full path)?
Depmod does the module dependency lists, for efficient use by modprobe, etc. You should not need mkwriteable just for remastering, but I was just saying it may be easier to modify the modules on the current ramdisk, run depmod to update, then you can easily copy it over to your remastering sandbox.
rule^
->the dir is in a hard disk partition created for the remastering and editing/deleting some file in it would only give me RO file system error, could have had deleted the beaver executable
->also the command whereis gives out the location of a particular executable file but how about it's config etc? how can i find the other parts?
->is there any particular example on when to use depmod?i know it's a kernel module compatibility check.. im better not to mess with this now. 
thanks again rule^ for the warm reply.
1. mount it as rw?
2. you should use "which" or "command -v" to find the location of an executable within $PATH. Configs are app-specific - usually check in /etc for system-wide configs, or ~/.project_name* for user contained configs.
3. it's not just a check, it will generate the lists used by modprobe. example: depmod -a
original here.