I'm new to Raspbian. I wanted to experience single user mode and achieved that by adding "init=/bin/sh" to the text of the file /boot/cmdline.txt This worked fine.
I wanted to restore full user mode, but when I tried to edit /boot/cmdline.txt it didn't show the change I made, didn't show the appropriate timestamp and anyway it was read only so I could make no changes.
What am I missing?
Thanks in advance for all suggestions.