>>> Executing post-image script board/raspberrypi3-64/post-image.sh vfat(boot.vfat): adding file 'bcm2710-rpi-3-b.dtb' as 'bcm2710-rpi-3-b.dtb' ... vfat(boot.vfat): adding file 'bcm2837-rpi-3-b.dtb' as 'bcm2837-rpi-3-b.dtb' ... vfat(boot.vfat): adding file 'rpi-firmware/bootcode.bin' as 'rpi-firmware/bootcode.bin' ... vfat(boot.vfat): adding file 'rpi-firmware/cmdline.txt' as 'rpi-firmware/cmdline.txt' ... vfat(boot.vfat): adding file 'rpi-firmware/config.txt' as 'rpi-firmware/config.txt' ... vfat(boot.vfat): adding file 'rpi-firmware/fixup.dat' as 'rpi-firmware/fixup.dat' ... vfat(boot.vfat): adding file 'rpi-firmware/start.elf' as 'rpi-firmware/start.elf' ... vfat(boot.vfat): adding file 'Image' as 'Image' ... Disk full vfat(boot.vfat): failed to generate boot.vfat make[1]: *** [target-post-image] Error 1 make: *** [_all] Error 2 This little patch helps: --- a/board/raspberrypi/genimage-raspberrypi3-64.cfg +++ b/board/raspberrypi/genimage-raspberrypi3-64.cfg @@ -11,7 +11,7 @@ image boot.vfat { "Image" } } - size = 32M + size = 64M } image sdcard.img {
With what configuration and Buildroot version is this? Presumably with a big initramfs? I just did a test build with 2017.05-rc3 here and raspberrypi3_64_defconfig, and I end up with ~15 MB used in the fat partition: sudo mount -o loop,ro images/boot.vfat /tmp/mp df -h /tmp/mp Filesystem Size Used Avail Use% Mounted on /dev/loop0 32M 15M 18M 47% /tmp/mp ls -lahS /tmp/mp total 15M -rwxr-xr-x 1 root root 12M May 30 2017 Image -rwxr-xr-x 1 root root 2.8M May 30 2017 start.elf drwxrwxrwt 30 root root 60K May 30 21:45 .. -rwxr-xr-x 1 root root 50K May 30 2017 bootcode.bin drwxr-xr-x 2 root root 16K Jan 1 1970 . -rwxr-xr-x 1 root root 15K May 30 2017 bcm2710-rpi-3-b.dtb -rwxr-xr-x 1 root root 8.2K May 30 2017 bcm2837-rpi-3-b.dtb -rwxr-xr-x 1 root root 6.6K May 30 2017 fixup.dat -rwxr-xr-x 1 root root 774 May 30 2017 config.txt -rwxr-xr-x 1 root root 65 May 30 2017 cmdline.txt If you change the configuration significantly then it isn't surprising that you may need to tweak other things, so this IMHO isn't a bug.
Alexander, Peter, All, > I just did a test build with 2017.05-rc3 here and raspberrypi3_64_defconfig, > and I end up with ~15 MB used in the fat partition[...] Ditto. > If you change the configuration significantly then it isn't surprising > that you may need to tweak other things, so this IMHO isn't a bug. Agreed. I'm closing this report. If you still have the issue with a stock Buildroot rpi3_64 defconfig, please re-open. Thanks! :-)
Just for the record, this was on version a6a4a8b2ef1fa747fdc79bc7bae0518417910f5d. And yes, I added the ramdisk option in the config, plus some other things. I agree that more than 32M bootfs might not be necessary for most people. The error simply came somewhat unexpected for me, since I "just changed the config" ;-) Would it make sense to be able to configure the bootfs size via make nconfig just as the rootfs size? Or at least print some error message pointing to the appropriate genimage.cfg so that users don't have to dig for the size option? If so, I could open an enhancement bug.
> Would it make sense to be able to configure the bootfs size via make > nconfig[...]? No, it does not make sense. Remember that our defconfigs are just basic samples to have a board boot up to a shell. If your use-case diverges from the sample, it is your responsibility to adapt it. Regards, Yann E. MORIN.