Please find my response inline
I have a scenario where I need to build a driver for different kernel versions. I have kernel-headers of different version in /lib/modules/ 2.6.32-xxxx 2.6.39-xxxx
and currently I am booted into 2.6.32-xxxx(which I find out by uname -r)
You don't need to boot on a specific kernel version to build external module for it.
I am aware of that. I just need the kernel header of that specific version instead. What I meant was that since I was using the expression "uname -r" in my makefile below- "make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules" so I specified that.
Now in my driver makefile, I generate .ko of driver make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
but I notice that the driver .ko gets generated for 2.6.39-xxxx though I am booted into 2.6.32-xxxx. Can anyone help me figure out why this is happening?
Could you check that /lib/modules/2.6.32-xxxx/build is not a symbolic link to linux 2.6.39-xxxx sources ?
I am pasting the output for you to check [root@Noi1-502156 ~]# cd /lib/modules [root@Noi1-502156 modules]# ls 2.6.32-220.4.2.el6.x86_64 2.6.39-300.17.1.el6uek.x86_64 2.6.32-358.6.2.el6.x86_64 2.6.39-400.24.1.el6uek.x86_64 [root@Noi1-502156 modules]# ll total 16 drwxr-xr-x. 8 root root 4096 Feb 28 14:41 2.6.32-220.4.2.el6.x86_64 drwxr-xr-x. 7 root root 4096 Jul 15 2013 2.6.32-358.6.2.el6.x86_64 drwxr-xr-x 8 root root 4096 Aug 12 2013 2.6.39-300.17.1.el6uek.x86_64 drwxr-xr-x. 4 root root 4096 Jul 10 2013 2.6.39-400.24.1.el6uek.x86_64 [root@Noi1-502156 modules]# Regards, Saket Sinha