← Back to team overview

ac100 team mailing list archive

Re: [Question #247956]: Wifi doesn't work in Lubuntu 14.04


Question #247956 on AC100_enablement changed:

LastStarDust posted a new comment:
thanks for the hint. I have tried to compile my own kernel. I used the ubuntu-trusty master branch.
The kernel I found there is 3.13.11
This is the very detailed list of all steps I followed. Still can't boot ...

extracted ubuntu-12.04-preinstalled-desktop-armhf+ac100.tar.gz on
/dev/mmcblk0p7 as explained in the guide https://code.google.com/p/cm-

on my Ubuntu desktop pc:

git clone git://kernel.ubuntu.com/ubuntu/ubuntu-trusty.git
export INSTALL_MOD_PATH=./modules_install
export CROSS_COMPILE=arm-linux-gnueabihf-
export ARCH=arm
mkdir -p modules_install/lib/firmware
make tegra_defconfig
make -j8 bzImage
make -j8 modules
make -j8 dtbs
make -j8 modules_install
make -j8 firmware_install
cat arch/arm/boot/dts/tegra20-paz00.dtb >> arch/arm/boot/zImage

copied needed files on sdcard and on the pc

sudo nvflash --bl sos-uboot-r5-2013-11-10.bin --go

on toshiba in the sosboot kernel

mkdir /mnt/sd
mount -t vfat /dev/mmcblk0p1 /mnt/sd
mkdir /mnt/root
mount -t ext4 /dev/mmcblk1p7 /mnt/root
cp /mnt/sd/all.db.fixed /mnt/root/usr/share/flash-kernel/db/all.db
cp /mnt/sd/u-boot-tools_2013.10-3_armhf.deb /mnt/root/tmp
cp -r /mnt/sd/modules_install/* /mnt/root/
cp /mnt/sd/zImage /mnt/root/vmlinuz-3.13.11
cp /mnt/sd/tegra_defconfig /mnt/root/config-3.13.11
chroot /mnt/root
/mnt/sd/help.sh mount_vfs
export PATH=/sbin:/usr/sbin:/bin:/usr/bin
dpkg -i /tmp/u-boot-tools_2013.10-3_armhf.deb
update-initramfs -v -c -k 3.13.11
mkimage -A arm -O linux -T ramdisk -C gzip -n "initramfs" -d initrd-3.13.11.img uInitrd-3.13.11
/mnt/sd/help.sh umount_vfs
umount /mnt/root
umount /mnt/sd

boot with this boot.src
setenv bootmenu_4 'Boot LUBUNTU 14.04 (Kernel 3.13.11)=mmc dev 0;\
setenv bootargs "cma=64M root=/dev/mmcblk0p7 rootwait quiet splash";\
ext2load mmc 0:7 0x1000000 /boot/vmlinuz-3.13.11;\
ext2load mmc 0:7 0x2200000 /boot/uInitrd-3.13.11;\
bootz 0x1000000 0x2200000;'

kernel and initrd loads successfully but then system freezes, what I
have done wrong?

You received this question notification because you are a member of
AC100 Team, which is an answer contact for AC100_enablement.