Read-only file system

Cause

Files and directories on file systems that are mounted read-only cannot be changed.

Action

If you only modify these files and directories occasionally, use rlogin(1) to log in to the servers of the mounted file systems and change the files or directories from there.

If you change these files and directories frequently, use mount(1M) to make the file systems read-write.

Technical Notes

The symbolic name for this error is EROFS, errno=30.