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Mount image file to partitions

abp
Posts: 1
Hi
I downloaded a device firmware.
Like this:
zetnu.xilinx-201907311618-autofreq-user-Update2UBI-NF-sig.tar.gz
I extract above file and file content is these files:
- BOOT.bin
- devicetree.dtb
- rootfs.jffs2
- uImage
Next to this files, was a file yo install.
This file:
runme.sh
This file content is this:
`
#!/bin/sh -e
path=$(pwd) cp_config="all" if [ ! -d /mnt/upgrade ]; then mkdir /mnt/upgrade fi if [ -e /usr/bin/ctrl_bd ]; then ret=`cat /usr/bin/ctrl_bd | grep "XILINX" | wc -l` else ret=0 fi if [ $ret -eq 1 ];then cd ./xilinx if [ -e /dev/ubi_ctrl ];then if [ ! -d /mnt/config ];then mkdir /mnt/config fi ubiattach /dev/ubi_ctrl -m 2 mount -t ubifs ubi1:rootfs /mnt/config if [ ! -d /mnt/config/home/usr_config ];then mkdir /mnt/config/home/usr_config fi if [ `ls /mnt/config/home/usr_config | wc -l` -gt 1 ];then cp_config="all" #cp -r /config/* /mnt/config/home/usr_config/ else cp_config="mac" #cp -r /config/mac /mnt/config/home/usr_config/ fi umount /mnt/config ubidetach -d 1 /dev/ubi_ctrl fi if [ -e BOOT.bin ]; then flash_erase /dev/mtd0 0x0 0x80 >/dev/null 2>&1 nandwrite -p -s 0x0 /dev/mtd0 ./BOOT.bin >/dev/null 2>&1 rm -rf BOOT.bin fi if [ -e devicetree.dtb ]; then flash_erase /dev/mtd0 0x1020000 0x1 >/dev/null 2>&1 nandwrite -p -s 0x1020000 /dev/mtd0 ./devicetree.dtb >/dev/null 2>&1 rm devicetree.dtb fi if [ -e uImage ]; then flash_erase /dev/mtd0 0x1100000 0x40 >/dev/null 2>&1 nandwrite -p -s 0x1100000 /dev/mtd0 ./uImage >/dev/null 2>&1 rm uImage fi if [ -e rootfs.jffs2 ]; then if [ -f /dev/mtd3 ];then flash_erase /dev/mtd2 0x0 0x1E0 >/dev/null 2>&1 else flash_erase /dev/mtd2 0x0 0x280 >/dev/null 2>&1 fi nandwrite -p -s 0x0 /dev/mtd2 ./rootfs.jffs2 >/dev/null 2>&1 rm rootfs.jffs2 fi if [ -e /dev/ubi_ctrl ];then if [ ! -d /mnt/config ];then mkdir /mnt/config fi ubiattach /dev/ubi_ctrl -m 2 mount -t ubifs ubi1:rootfs /mnt/config if [ ! -d /mnt/config/home/usr_config ];then mkdir /mnt/config/home/usr_config fi if [ $cp_config == "all" ];then cp -r /config/* /mnt/config/home/usr_config/ if [ -e ../lighttpd-htdigest.user ]; then line1=`cat ../lighttpd-htdigest.user | wc -c` if [ $line1 != "0" ]; then cp -r ../lighttpd-htdigest.user /mnt/config/home/usr_config/lighttpd-htdigest.user if [ -e ../shadow ]; then line2=`cat ../shadow | wc -c` if [ $line2 != "0" ]; then cp /etc/shadow /mnt/config/home/usr_config/shadow old_shd=`sed -n '1p' /mnt/config/home/usr_config/shadow` o1=`echo ${old_shd:5}` o2=${o1#*:} new_shd=`cat ../shadow` n1=$new_shd":"$o2 sed -i '1d' /mnt/config/home/usr_config/shadow sed -i "1i $(echo $n1)" /mnt/config/home/usr_config/shadow fi fi fi fi else cp -r /config/mac /mnt/config/home/usr_config/ fi sync umount /mnt/config ubidetach -d 1 /dev/ubi_ctrl fi if [ -e /dev/ubi_ctrl ];then ubiattach /dev/ubi_ctrl -m 2 mount -t ubifs ubi1:rootfs /mnt/upgrade cd /mnt/upgrade/upgrade rm -rf /mnt/upgrade/upgrade/* cd $path if [ -e ./xilinx/angstrom_rootfs.jffs2 ];then cp -rf ./xilinx/angstrom_rootfs.jffs2 /mnt/upgrade/upgrade if [ -f /dev/mtd3 ];then flash_erase /dev/mtd3 0 0xa0 >/dev/null 2>&1 fi fi flash_erase /dev/mtd0 0x1040000 0x1 >/dev/null 2>&1 nandwrite -p -s 0x1040000 /dev/mtd0 ./xilinx/upgrade-marker.bin >/dev/null 2>&1 sync umount /mnt/upgrade ubidetach -d 1 /dev/ubi_ctrl fi else echo "this is not for c5" fi rm -rf *.tar.gz #/sbin/reboot -f &
`
Above code used nandwrite to write in a device.
Now, I want to mount these images to a directory or partitions. and add or change somethings to these images. next write again to images.
How can I do it?
Step 1, I just want to mount and read file and directories.
Please help me.
Thanks
0
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