From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jim Thomas Date: Sat, 30 Jan 2010 09:01:49 -0800 (PST) Subject: [Buildroot] BE: Buildroot How-To for QEMU/ARM (Jim Thomas) In-Reply-To: <1531E53627F1F749B4FE809BF2A4EB6701653FAE@WETMEX10.loepfe.com> References: <1531E53627F1F749B4FE809BF2A4EB6701653FAE@WETMEX10.loepfe.com> Message-ID: <965922.2943.qm@web44814.mail.sp1.yahoo.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Hi Noel, > If you want I can send you a kernel config ... that is working for my > QEMU build (it is based on the kernel versatile_defconfig). I would be interested in looking over your .config file. I think what I am missing may be on the QEMU side, not the Buildroot side. What qemu-system-arm command do you use to bring up your virtual machine? Thanks. Jim ----- Original Message ---- From: "Vellemans, Noel" To: buildroot at busybox.net Sent: Thu, January 28, 2010 3:46:24 AM Subject: [Buildroot] BE: Buildroot How-To for QEMU/ARM (Jim Thomas) Hi JIM >>From: Jim Thomas >>Subject: [Buildroot] Buildroot How-To for QEMU/ARM >> Now I want to use QEMU to boot a Linux kernel and RFS that I built myself for ARM using buildroot-2009.11. >>? >>I have not had much luck. Based on web searching, I have tried twisting knobs in 'make menuconfig' and rebuilt >>perhaps a couple of dozen times. >> >> Rather than do a core dump here of the details, I thought I would ask: >>? >>Has anyone used buildroot-2009.11 to build a kernel and RFS for ARM that boot successfully under qemu-0.12.2? Yes, I did this some time ago (for the 2009.11). {It was qemu-system-arm --version QEMU PC emulator version 0.11.0 (qemu-kvm-0.11.0), Copyright (c) 2003-2008 Fabrice Bellard, BUTY this will not make the difference I guess} The whole trick is that no need to have a KERNEL config to start with (the file system... is nothing special) If you want I can send you a kernel config ... that is working for my QEMU build (it is based on the kernel versatile_defconfig). { I even have build a booting ARM-QEMU from the buildroot-git a couple of days a go.} >>Do step-by-step notes exist for how to do this for ARM that were written for these latest versions of Buildroot and >>QEMU, or that have been verified as still complete and correct? Booting the kernel and roofs in QEMU can be done by a 1000ways, it depends on your creativity and Linux-skills how you do this (disk-image/ nfs-boot / .... etc ) >>Ultimately, I might like to get Buildroot/QEMU working for a particular ARM processor, but for now, a working >>configuration for any virtualized ARM target is good enough. I know ... having BUILDROOT 'build-in' support for a QEMU-ARM platform (as well as other QEMU platforms) would be nice, and I guess it is on many buildroot users their wish-list. >>A general purpose Buildroot/QEMU howto for ARM might serve as both a worthwhile regression test, and primary support >>document visible at the Buildroot web site. Regards Noel. Message: 3 Date: Wed, 27 Jan 2010 16:10:35 +0000 (UTC) From: Grant Edwards Subject: Re: [Buildroot] Buildroot How-To for QEMU/ARM To: buildroot at uclibc.org Message-ID: Content-Type: text/plain; charset=us-ascii On 2010-01-27, Jim Thomas wrote: > Hello, > > I can build qemu-0.12.2 under Ubuntu 9.10 and boot Linux in QEMU using > the pre-built kernel and RFS in arm-test-0.2, also from the QEMU > project. > > Now I want to use QEMU to boot a Linux kernel and RFS that I built > myself for ARM using buildroot-2009.11. > > I have not had much luck. Based on web searching, I have tried > twisting knobs in 'make menuconfig' and rebuilt perhaps a couple of > dozen times. > > Rather than do a core dump here of the details, I thought I would ask: > > Has anyone used buildroot-2009.11 to build a kernel and RFS for ARM > that boot successfully under qemu-0.12.2? I built for arm-integrator using HEAD back in November/December, and it ran fine on qemu-0.9.1. I didn't do much with it other than boot it up, log in, and test the virtual serial ports. > Do step-by-step notes exist for how to do this for ARM that were > written for these latest versions of Buildroot and QEMU, or that have > been verified as still complete and correct? Not that I've found. There were some articles written a couple years ago that have step-by-step instructions, but they're missing a step or two and are also now out of date in a few spots. Here's the .config file I last used -- AFAIR it was working at that point: # Automatically generated make config: don't edit # Wed Dec 16 09:10:07 2009 # BR2_HAVE_DOT_CONFIG=y BR2_VERSION="2009.11-git" # BR2_alpha is not set -- Grant Edwards grante Yow! I'm having fun at HITCHHIKING to CINCINNATI visi.com or FAR ROCKAWAY!! ------------------------------ _______________________________________________ buildroot mailing list buildroot at busybox.net http://lists.busybox.net/mailman/listinfo/buildroot End of buildroot Digest, Vol 43, Issue 62 ***************************************** _______________________________________________ buildroot mailing list buildroot at busybox.net http://lists.busybox.net/mailman/listinfo/buildroot