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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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