Root Login in Chrome OS

Login to Chrome shell as root user
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By default, it is not possible to switch to root user from a normal user like chronos due to some security aspects of Chrome.

So the following procedure can be followed to get root shell access:

1. By default, chronos has sudo powers. So switch to root using the password of chronos

$ sudo su

2. Once landed in the root shell, the we can set the root password. But by default, the root file-system is mounted without write permission. So the root partition has be to be remounted with rw permission using the following command:

# mount -o remount,rw /

3. Reset the root password using the following command:

# passwd

4. Add the cronos to the wheel group, so that su - root (switching to root) is possible from the cronos user.

# vim /etc/group

append "cronos" or any other "username" to the 'wheel' group.