How to edit system images (e.g. Rasbian, Openstack)

We can use guestfish a simple tool to edit images file

Open file with command

guestfish -a OrangePi_2G-IOT_Ubuntu1604_Server_GSMPPP_V1_0.img
Welcome to guestfish, the guest filesystem shell for
editing virtual machine filesystems and disk images.
Type: 'help' for help on commands
 'man' to read the manual
 'quit' to quit the shell

><fs> run
 100% ⟦▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒⟧ --:--
><fs> list-filesystems 
/dev/sda1: ext2
/dev/sda2: ext4
><fs> mount /dev/sda2 /
><fs> edit /etc/network


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