Renaming a file?

[groston]

My Pixel 7 Pro is rooted, however, it still grabs updates, etc., and I want to stop it from doing that. I did some searching and I found that to do this, I could simply rename a few files.

However, I have been unable to rename the files. This is what I have done:

• Installed ConnectBot
• typed 'su'
• cd'ed to the directory that has a file to rename
• typed 'mv oldFileName newFileName'

This resulted in the error mv: bad 'oldFileName': Read-only file system

Question: can someone point me to instructions that would allow me to make the file system not read-only or some other approach for addressing this issue? Thanks.