I've realized my answer was not sent to the list. I'll do it now, being the subject may be of interest.
Andrea ---------- Forwarded message ---------- From: Andrea Adami <andrea.ad...@gmail.com> Date: Thu, May 3, 2012 at 6:24 PM Subject: Re: [yocto] Need help for building kernel image with embeddedinitramfs.cpio To: giovanni.pav...@exorint.it On Thu, May 3, 2012 at 6:00 PM, <giovanni.pav...@exorint.it> wrote: > Thanks for your suggestion. I have not yet tried with kernel modules > but the whole build sequence appears fine and the output is running. > > I am hitting a problem thought with step 3 > > I have this layout (meta-mylayer is parallel to meta-yocto): > > meta-mylayer/conf/machine/mymachine.conf > meta-mylayer/recipes-kernel/linux/linux.inc > meta-mylayer/recipes-kernel/linux/linux_2.6.37.bb > meta-mylayer/recipes-kernel/linux/linux_2.6.37/mymachine/defconfig > > linux.inc inherit from kernel and I am setting > PREFERRED_PROVIDER_virtual/kernel = "linux" > PREFERRED_VERSION_linux ?= "2.6.37" > in mymachine.conf. > > This builds and deploys a uImage-mymachine-"stamp1".bin fine for mymachine. > > I added a kernel recipe in my recipe-kernel layer > like this: > > meta-mylayer/recipes-kernel/linux/linuxramfs_2.6.37.bb > meta-mylayer/recipes-kernel/linux/linuxramfs_2.6.37/mymachine/defconfig > > in linuxramfs_2.6.37/mymachine/defconfig I patched all options for ramfs > (source / compression etc) > and tweaked linuxramfs_2.6.37.bb as per your indication (starting from the > linux_2.6.37.bb > I had up and running). > > Problems: > > 1. when I run "bitbake linuxramfs" I get > "ERROR: Multiple .bb files are due to be built which each provide > virtual/kernel" > > I am seeing multiple reference on the net about this error but I am not > understanding > how to handle. Both linuxramfs_2.6.37.bb and linux_2.6.37.bb are providing > virtual/kernel. > this can be solved adding PROVIDES = "" (see the kexecboot kernels linked above) > 2. "bitbake linuxramfs" deploys a uImage-mymachine-"stamp2".bin > To overwrite this in a way I get a uImage-ramfs-mymachine-"stampxxx".bin > (so that I can easily identify it against a normal uImage - only kernel) > what do_* task should I reimplement in my linuxramfs_2.6.37.bb recipe? > KERNEL_IMAGE_BASE_NAME KERNEL_IMAGE_SYMLINK_NAME see: http://cgit.openembedded.org/meta-openembedded/tree/meta-initramfs/recipes-kernel/linux/linux-yocto-tiny-kexecboot_3.2.bb > Thanks in advance for your attention > YW Cheers Andrea (from Verona) > Giovanni Pavoni > R&D Department > > Exor International S.p.A. > Via Monte Fiorino,9 > I-37057 San Giovanni Lupatoto (VR) > Phone:+390458774839 - Fax:+390458779023 > > giovanni.pav...@exorint.it - www.exorint.net - www.exorint.it > > > ATTENZIONE: Privacy Policy – D.Lgs. 196/2003 > Le informazioni contenute in questo messaggio di posta elettronica sono di > carattere privato e confidenziale ed esclusivamente rivolte al destinatario > sopra indicato. Nel caso aveste ricevuto questo messaggio di posta > elettronica per errore, vi comunichiamo che ai sensi del suddetto decreto è > vietato l’uso, la diffusione, distribuzione o riproduzione da parte di ogni > altra persona. Siete pregati di segnalarlo immediatamente rispondendo al > mittente e di distruggere quanto ricevuto (compresi i file allegati) senza > farne copia o leggerne il contenuto. > > This e-mail transmission contains information that is confidential and may > be privileged. It is intended only for the addressee(s) named above. If you > receive this e-mail in error, please do not read, copy or disseminate it in > any manner. If you are not the intended recipient, any disclosure, copying, > distribution or use of the contents of this information is prohibited. > Please reply to the message immediately by informing the sender that the > message was misdirected. After replying, please erase it from your computer > system. Your assistance in correcting this error is appreciated. > _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
