Cannot install .pem file in Keychain Access of MacOS

ebookhall · November 22, 2021, 4:27pm

Cannot install .pem file in Keychain Access of MacOS. Please see attached screenshot.

orangepizza · November 22, 2021, 4:42pm

you can't add a new certificate to "system roots", it's read-only.
add it to "System"

ebookhall · November 23, 2021, 12:38pm

I have tried to add it to "System", but it seems not ok. Pls see attached screenshots.

webprofusion · November 23, 2021, 1:26pm

Open the Keychain Access app and drag that file into the System folder of that app.
Find the ISRG Root X1 certificate in System and double click on it, open the Trust menu and change "Use System Defaults" to "Always Trust", then close that and enter your password to confirm the change (if prompted).