From mboxrd@z Thu Jan 1 00:00:00 1970 From: greg@kroah.com (Greg KH) Date: Sun, 7 Jun 2015 09:47:31 -0700 Subject: Guidance about minimal configurations for kernel compilation In-Reply-To: References: Message-ID: <20150607164731.GA26176@kroah.com> To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org On Sun, Jun 07, 2015 at 09:45:07PM +0530, Mayur Patil wrote: > Hi All, > > ? ? I am struggling to build small size with minimum time for kernel? > compilation with vanilla kernels of ?kernel.org.? > As mentioned in the makehelp, I have used defconfig but unable to get? > desirable results. I have followed linuxscratch?with which?make? > defconfig is taking about 20 to 30 minutes of time only for? > compilation and result of that compilation the kernel ?is also unable to? > boot.? Please guide which configurations should I use to get my? > kernel build fast and of minimum size. > This is my .config file: ?http://fpaste.org/229718/ Start with a working .config file from a distribution that you know works. Boot that kernel, plug in all of the devices you want to support, and then run 'make localmodconfig' and take that config and use it. It should build _much_ faster. good luck, greg k-h