如何制作和烧录UBI文件系统镜像

只能在本地机ubuntu上制作，本部分都在本地完成
首先要下载ubinize和mkfs.ubifs两个工具，以及ubinize的配置文件my_ubi.ini：
链接：https://pan.baidu.com/s/1bQVpGP3Var5r0sr5ctGctg
提取码：10ku

在code目录创建test文件夹，test目录下创建两个txt文件

mkdir test
cd test
echo "adcdefg" >simcon1.txt 
echo "higqmn" >simcon2.txt

ubinize和mkfs.ubifs my_ubi.ini三个文件传到code目录

let@by001:home/let/code$ ls
ubinize   mkfs.ubifs  my_ubi.ini    test

执行两条指令制作镜像

sudo ./mkfs.ubifs -m 2KiB -e 124KiB -c 24 -r /home/let/code/test/ /home/let/code/NON-HLOS.ubifs
./ubinize -v -o /home/let/code/NON-HLOS_genns_3M.ubi -m 2048 -p 128KiB -s 2048 my_ubi.ini

制作完成后，NON-HLOS_genns_3M.ubi就是可烧录文件：

let@by001:~/code$ ls
 NON-HLOS_genns_3M.ubi  ubinize
 mkfs.ubifs    NON-HLOS.ubifs
 my_ubi.ini    test

首先把生成的NON-HLOS_genns_3M.ubi传到data文件夹

[C:~]$ adb push "Z:NON-HLOS_genns_3M.ubi" data
2577 KB/s (1966080 bytes in 0.744s)

烧写镜像到mtd17
flash_eraseall /dev/mtd17
ubiformat /dev/mtd17 -f /data/NON-HLOS_genns_3M.ubi
ubiattach /dev/ubi_ctrl -m 17 -d 4 -O 2048
mount -t ubifs /dev/ubi4_0 /mnt/

[C:~]$ adb shell


BusyBox v1.22.1 (2021-10-11 14:48:04 CST) built-in shell (ash)
Enter 'help' for a list of built-in commands.

/ # ls data
ls data
NON-HLOS_genns_3M.ubi
/ # flash_eraseall /dev/mtd17
flash_eraseall /dev/mtd17
Erasing 128 Kibyte @ 400000 - 100% complete.
/ # ubiformat /dev/mtd17 -f /data/NON-HLOS_genns_3M.ubi
ubiformat /dev/mtd17 -f /data/NON-HLOS_genns_3M.ubi
ubiformat: mtd17 (nand), size 4194304 bytes (4.0 MiB), 32 eraseblocks of 131072 bytes (128.0 KiB), min. I/O size 2048 bytes
libscan: scanning eraseblock 31 -- 100 % complete  
ubiformat: 32 eraseblocks are supposedly empty
ubiformat: flashing eraseblock 14 -- 100 % complete  
ubiformat: formatting eraseblock 31 -- 100 % complete  
/ # ubiattach /dev/ubi_ctrl -m 17 -d 4 -O 2048
ubiattach /dev/ubi_ctrl -m 17 -d 4 -O 2048
UBI device number 4, total 32 LEBs (4063232 bytes, 3.9 MiB), available 0 LEBs (0 bytes), LEB size 126976 bytes (124.0 KiB)
/ # mount -t ubifs /dev/ubi4_0 /mnt/
mount -t ubifs /dev/ubi4_0 /mnt/
/ # ls mnt
ls mnt
simcon1.txt  simcon2.txt

断电重启
ubiattach /dev/ubi_ctrl -m 17 -d 4 -O 2048
mount -t ubifs /dev/ubi4_0 /mnt/

[C:~]$ adb shell


BusyBox v1.22.1 (2021-10-11 14:48:04 CST) built-in shell (ash)
Enter 'help' for a list of built-in commands.

/ # ls mnt
ls mnt
/ # ubiattach /dev/ubi_ctrl -m 17 -d 4 -O 2048
ubiattach /dev/ubi_ctrl -m 17 -d 4 -O 2048
UBI device number 4, total 32 LEBs (4063232 bytes, 3.9 MiB), available 0 LEBs (0 bytes), LEB size 126976 bytes (124.0 KiB)
/ # mount -t ubifs /dev/ubi4_0 /mnt/
mount -t ubifs /dev/ubi4_0 /mnt/
/ # ls mnt
ls mnt
simcon1.txt  simcon2.txt
/ #