Difference between revisions of "IoTGateway/BSP/Linux/iMX6/FAQ"

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Line 56: Line 56:
 
*Prerequisites
 
*Prerequisites
 
*#one free loop device with partition support
 
*#one free loop device with partition support
 +
*#prewritten script, [[:File:mksd-linux.sh.gz|mksd-linux.sh.gz]]
 
*#prewritten script tarball, [[:File:Mk_inand.tar.gz|mk_inand.tar.gz]].
 
*#prewritten script tarball, [[:File:Mk_inand.tar.gz|mk_inand.tar.gz]].
 
*#the original sdcard <sub>([[IoTGateway/BSP/Linux/iMX6/Yocto_LBV3_User_Guide#To_build_sdcard_image|LBV3]]) ([[IoTGateway/BSP/Linux/iMX6/Yocto_LBV5_User_Guide#To_build_sdcard_image|LBV5]]) ([[IoTGateway/BSP/Linux/iMX6/Yocto_LBV6_User_Guide#To_build_sdcard_image|LBV6]])</sub>
 
*#the original sdcard <sub>([[IoTGateway/BSP/Linux/iMX6/Yocto_LBV3_User_Guide#To_build_sdcard_image|LBV3]]) ([[IoTGateway/BSP/Linux/iMX6/Yocto_LBV5_User_Guide#To_build_sdcard_image|LBV5]]) ([[IoTGateway/BSP/Linux/iMX6/Yocto_LBV6_User_Guide#To_build_sdcard_image|LBV6]])</sub>
Line 90: Line 91:
 
$ sudo mkdir ~/mnt/p2/{mk_inand,image}
 
$ sudo mkdir ~/mnt/p2/{mk_inand,image}
 
$ sudo cp ${SDCARD} ~/mnt/p2/image/
 
$ sudo cp ${SDCARD} ~/mnt/p2/image/
−
$ cat << 'MKSD_EOF' > ${MKSD}
+
$ gunzip mksd-linux.sh.gz
−
#!/bin/bash
 
−
 
 
−
echo -e "\nTransfer U-Boot & Linux to target device\n"
 
−
 
 
−
[ $# -lt 1 ] && echo "Please input target device, e.g. ./mksd-linux.sh /dev/mmcblk0" && exit 1
 
−
[ ! -e $1 ] && echo "Device $1 not found" && exit 1
 
−
[ "`cat /sys/block/${1##*/}/device/type`" == "SD" ] && echo "Device $1 is type of SD." && exit 1
 
−
 
 
−
echo "All data on "$1" now will be destroyed! Continue? [y/n]"
 
−
read ans
 
−
if [ $ans != 'y' ]; then exit 1; fi
 
−
 
 
−
echo 0 > /proc/sys/kernel/printk
 
−
 
 
−
echo "[Unmounting all existing partitions on the device ]"
 
−
 
 
−
umount $1* &> /dev/null
 
−
 
 
−
echo "[Partitioning $1...]"
 
−
 
 
−
DRIVE=$1
 
−
 
 
−
cd ../image
 
−
 
 
−
filename="fsl-image*.sdcard"
 
−
current_filename=`ls | grep fsl-image*.sdcard`
 
−
 
 
−
if [ -e $filename ];then
 
−
    echo "[Copy $current_filename image]"
 
−
    dd if=$current_filename of=$1 &>/dev/null
 
−
else
 
−
    echo $filename does not exist
 
−
    exit 1
 
−
fi
 
−
 
 
−
echo "[Resize filesystems...]"
 
−
 
 
−
rootfs_start=`fdisk -u -l ${DRIVE} | grep ${DRIVE}p2 | awk '{print $2}'`
 
−
 
 
−
# Create partition table for extend root file system (/dev/mmcblk1p2) partition
 
−
fdisk -u $DRIVE << EOF &>/dev/null
 
−
d
 
−
2
 
−
n
 
−
p
 
−
2
 
−
$rootfs_start
 
−
 
 
−
w
 
−
EOF
 
−
 
 
−
if [ -x /sbin/partprobe ]; then
 
−
    /sbin/partprobe ${DRIVE} &> /dev/null
 
−
else
 
−
    sleep 1
 
−
fi
 
−
 
 
−
e2fsck -f -y ${DRIVE}p2 &> /dev/null
 
−
resize2fs ${DRIVE}p2 &> /dev/null
 
−
 
 
−
if [ -x /sbin/partprobe ]; then
 
−
    /sbin/partprobe ${DRIVE} &> /dev/null
 
−
else
 
−
    sleep 1
 
−
fi
 
−
 
 
−
echo 7 > /proc/sys/kernel/printk
 
−
echo "[Done]"
 
−
 
 
−
MKSD_EOF
 
 
$ sudo cp ${MKSD} ~/mnt/p2/mk_inand/
 
$ sudo cp ${MKSD} ~/mnt/p2/mk_inand/
 +
$ sudo chmod +x ~/mnt/p2/mk_inand/${MKSD}
  
 
</syntaxhighlight></div>
 
</syntaxhighlight></div>

Revision as of 11:46, 2 November 2016


Compiling

U-boot

Please refer to the following sections for details

  • Getting Started / Build Instructions / To build u-boot (LBV3) (LBV5) (LBV6)
  • Customization / Building & updating u-boot manually (LBV3) (LBV5) (LBV6)

Kernel

Please refer to the following sections for details

  • Getting Started / Build Instructions / To build linux kernel (LBV3) (LBV5) (LBV6)
  • Customization / Building & updating kernel/modules/dtb manually (LBV3) (LBV5) (LBV6)

U-boot

Kernel

In Yocto Project, it is called "boot splashscreen", please refer to the each BSP's corresponding official Yocto website (list as below) for details

  • Yocto Project Reference Manual / Other Tips. (LBV3) (LBV5) (LBV6)

SDcard image

To build from prebuilt image, please refer to the following sections for details.

  • Getting Started / Introducing BSP / Prebuilt image (LBV3) (LBV5) (LBV6)

To build from BSP, please refer to the following sections for details.

  • Getting Started / Build Instructions / To build sdcard image (LBV3) (LBV5) (LBV6)

How To Stress Test On a Linux

Perform the command as below: 

stress -c 4 -i 4  -d 1 --hdd-bytes 512


How To create one LIV disk image of SD card

The LIV disk image of SD card is used to boot target device up and to install the entire system to on-baord eMMC.

E.g.
$ export LODEV=$(sudo losetup -f)
$ export MKINAND=mk_inand.tar.gz
$ export SDCARD=fsl-image-qt5-imx6qrsb4410a1.sdcard
$ export LIV=4410A1LIV6000.img
$ cp ${SDCARD} ${LIV}
$ dd if=/dev/zero of=${LIV} bs=1M seek=3700 count=0


  • using the following commands to create one
$ sudo losetup ${LODEV} ${LIV}
$ cat << EOF | sudo fdisk -u ${LODEV}
d
2
n
p
2
24576

w
EOF
$ sudo e2fsck -f ${LODEV}p2
$ sudo resize2fs ${LODEV}p2
$ mkdir -p ~/mnt/p2
$ sudo mount /dev/loop0p2 ~/mnt/p2
$ sudo mkdir ~/mnt/p2/{mk_inand,image}
$ sudo cp ${SDCARD} ~/mnt/p2/image/
$ gunzip mksd-linux.sh.gz
$ sudo cp ${MKSD} ~/mnt/p2/mk_inand/
$ sudo chmod +x ~/mnt/p2/mk_inand/${MKSD}

Other Features

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