Comments on: Six Easy Steps to Compiling and Installing Linux Kernel

By: manoj kumar k

manoj kumar k — Mon, 01 Mar 2010 16:30:09 +0000

ok, i was somehow able to make the function call. but whatever value i pass to the function, i get -1 as the return. both program and the newcal() definition seems to be fine. also i tried with different data types in the printf statement. then also same output.
if it is %d then i get -1 as output, %ld then i get fffffff as output. any possible mistake i might have overlooked?

By: manoj kumar k

manoj kumar k — Fri, 26 Feb 2010 23:13:03 +0000

sir, i have tried it again, even with a new kernel linux-2.6.32.5 and still after making necessary changes required in files and recompling, the gcc is not able to identify the newcall() function. if possible please send your mobile number to my mail(jonam4321@yahoo.com), i would like to come to you personally to see what is wrong. i am from c batch btech cse.

By: admin

admin — Thu, 25 Feb 2010 02:35:55 +0000

You can recompile the same kernel at so many times . Go to the kernel folder
# su
#cd /usr/src/linux
#make menuconfig
dont change anything simply save the file and exit
now type
#make
Try this . Sometimes without menuconfig make command will not work .

By: manoj kumar

manoj kumar — Wed, 24 Feb 2010 19:37:39 +0000

sir, i want to implement a user defined system call. i have made changes in files as needed(as instructed in class). but after this i have to recompile the kernel. how do you do it. because if i extract the same .bz file done before it will create the same copy of kernel without changes i made in the files i made in the present compiled kernel. and i am not able to compile the kernel file i have made changes to(eg. linux folder). is there any possible way to compile the same folder again without extracting again.