Nearly all pages give health check.

[keithsloan]

It should be in your root directory, you will have to get it from the zip since you somehow are missing it.
Permissions depends on your method of upload typically, did you FTP it.

Does it say site updated at the top?
Your installs files are not being removed probably.

Check your data other logs error log for errors

Thanks I downloaded to ubuntu and used Filezilla to FTP to Raspberry Pi which I think did me no favours on file permissions.

Anyway I now have something to go on so will go away and check