From mboxrd@z Thu Jan 1 00:00:00 1970 From: akronix5@gmail.com (Abel) Date: Mon, 30 Jan 2017 01:34:29 +0100 Subject: How do you generate the config file? In-Reply-To: References: <9360101485732261@web29m.yandex.ru>

Message-ID: To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org Yes, similar procedure I've followed. I didn't forget step 4. I actually always did `sudo make install_modules`. I'm not sure what's going on. Maybe it has sth to do with Ubuntu, that's why specifically mention I was using Ubuntu. Maybe I can try with some other distro. Probably Manjaro has better support for latest kernel releases. It's late here. I'll keep trying and let you know in case I figure out sth. On Jan 30, 2017 1:27 AM, "Guru Das S" wrote: On 29 January 2017 at 16:19, Abel wrote: > I've posted a mail with the screenshot (waiting for moderation) when I try > to boot from make defconfig built kernel. Basically the kernel doesn't boot > because "Missing modules (cat /proc/modules; ls /dev " it says...It's the > same screen that appeared when I tried using make oldconfig pressing enter > for default values. > > I tried using make localmodconfig but It again asks for many config params > that I don't know anything about. > > Saludos, > > Abel. Hi Abel, The procedure I followed in order to compile, install and boot my custom compiled kernel is: 1. Copy .config from existing distribution to kernel tree. 2. Run make localmodconfig (I also got a bunch of prompts for parameters I had no idea about. I just pressed down Enter till the stream of options stopped flowing!) 3. Run make -j where N is a good number for your system. 4. Run make modules_install 5. Run make install (This ran update-grub for me at the end, though, which was convenient) That's it. I was able to boot into this newly compiled kernel via grub's selection menu upon rebooting. I think you may have missed doing Step 4 above. Guru Das Srinagesh. > > On 30 January 2017 at 01:11, Abel wrote: >> >> Hi. >> >> I just built using make defconfig and it, again, doesn't boot. Instead it >> displays the error that I've described before (sorry I forgot to attach the >> screenshot, I attach it here). >> >> As I already stated, neither /boot/${uname -r} nor make oldconfig work for >> me, they both show the screen above. >> >> Saludos, >> >> Abel. >> >> On 30 January 2017 at 01:08, Guru Das S wrote: >>> >>> On 29 January 2017 at 15:32, ??? wrote: >>> > Hello, >>> > If you want to reuse the config of current kernel, you can use >>> > `make oldconfig` to generate config file. >>> > >>> > -- >>> > My best regards to you. >>> > >>> > No System Is Safe! >>> > Dongliang Mu >>> > >>> > 2017-01-29 18:24 GMT-05:00 Ozgur Karatas : >>> >> >>> >> Hello, >>> >> >>> >> you can get .config files in two ways, firstly get the existing >>> >> .config file >>> >> and compile to kernel. >>> >> >>> >> $ cp /boot/config-x.x.x /bla/linux/.config >>> >> >>> >> Second, use the generate command: >>> >> >>> >> $ make defconfig >>> >> >>> >> Regards, >>> >> >>> >> ~Ozgur >>> >> >>> >> 30.01.2017, 01:18, "Abel" : >>> >> >>> >> Hi! >>> >> >>> >> Where do you get the config file from? or do you generate it yourself? >>> >> >>> >> I'm using xUbuntu 16.04 in a VM inside VMWare, following the >>> >> instructions >>> >> described in kernelnewbies wiki. (By the way, the download links to >>> >> the iso >>> >> images of Ubuntu don't work for me) >>> >> >>> >> If I copy the latest config file in /boot, kernel 4.4.0, it starts to >>> >> ask me >>> >> many config parameters that I don't know what to answer. I tried to >>> >> press >>> >> always to set up the default parameters, but after compiling I >>> >> get >>> >> an error trying to boot from that kernel (see atachment). >>> >> >>> >> I tried with make menuconfig and that seems to work, but it takes too >>> >> long >>> >> because it builds and includes many many drivers modules. >>> >> Yeah, I know I could navigate through the ncurses window and select >>> >> the >>> >> stuff I want and deselect what I don't want, but I'd rather prefer >>> >> just a >>> >> simple config file that builds and works and don't waste time in >>> >> understanding all the stuff that it's in there. >>> >> >>> >> So, isn't there a way to get a simple config file just to develop >>> >> kernel >>> >> stuff for an Ubuntu image? >>> >> I've even gone to the kernel ppa sources for Ubuntu: >>> >> http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9.5/; but it only >>> >> provides >>> >> a patch using the debian config files (which don't come from git >>> >> sources of >>> >> course). >>> >> >>> >> I just want a config file, copy it to the kernel root code and >>> >> compile. >>> >> >>> >> Greetings, >>> >> >>> >> Abel >>> >> >>> >> >>> >> _______________________________________________ >>> >> Kernelnewbies mailing list >>> >> Kernelnewbies at kernelnewbies.org >>> >> https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >>> >> >>> > >>> > _______________________________________________ >>> > Kernelnewbies mailing list >>> > Kernelnewbies at kernelnewbies.org >>> > https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >>> >>> Hi Abel, >>> >>> To add to what Ozgur said, you may first copy the existing .config >>> file that comes along with your Linux distribution to your kernel >>> tree, and then use: >>> >>> $ make localmodconfig >>> >>> instead of defconfig. A quick Google search should tell you the >>> differences between the two - and from what I've read, localmodconfig >>> is preferred to defconfig. >>> >>> Hope this helps. >>> >>> >>> Guru Das Srinagesh. >> >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20170130/2d62ab0f/attachment.html