Edit hosts file from terminal IDE with root accessed

Sunday, June 16, 2019

My terminal IDE accessed root but cannot edit hosts file.

root@172.16.0.151:/system/etc #vim hosts

But vim just opens hosts file as readonly. Where do I missed here?

Answer

You've missed that the /system file system is mounted read-only.

mount -o remount,rw /system
cd /system/etc
vim hosts

# edit, save, then make /system read-only again:
mount -o remount,ro /system

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