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Record root file system image img production

2022-07-18 12:53:00 【51CTO】

First step ：

　　 Get ready rootfs file ; Can pass ubuntu base Basic image

The second step ：

　　 Use dd Tools make images ;

       
       if=/dev/zero  of=linux-rootfs.img bs=1M count=23
      
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　　 Notice at the beginning dd production img When you file , Its size should be larger than rootfs A little bigger , To facilitate subsequent modifications

The third step ：

Format image file ：

       
       mkfs.ext2 linux-rootfs.img
      
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Step four ：

Mount the image and copy the modified file system into it ：

       
       cp rootfs/*  linux-mnt/  -rfp
       
 umount ./linux-mnt/
      
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2.

here ：linux-rootfs.img There are rootfs What's in it ！！

Step five ：

Last Check and repair linux-rootfs.img Mirrored file system

       
       e2fsck  -p -f linux-rootfs.img
      
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