asked 2016-03-11 14:56:26 +0000
This post is a wiki. Anyone with karma >75 is welcome to improve it.
I'm using atomic fedora 23, I learned that "/usr" in atomic should be readonly, now I noticed that "/" is readonly too, but /proc/mounts still shows it rw mount. Could anyone help me to understand how to make "/" readonly happen?
-bash-4.3# touch a
touch: cannot touch ‘a’: Permission denied
-bash-4.3# cat /proc/mounts | grep "\/dev\/mapper\/atomicos-root \/ "
/dev/mapper/atomicos-root / xfs rw,relatime,attr2,inode64,noquota 0 0