Re: kern/55932: NFS root is not read only

[David Holland <dholland-bugs%netbsd.org@localhost>]

The following reply was made to PR kern/55932; it has been noted by GNATS.

From: David Holland <dholland-bugs%netbsd.org@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/55932: NFS root is not read only
Date: Wed, 9 Jun 2021 01:40:08 +0000

 On Sat, Jan 16, 2021 at 01:55:01PM +0000, Michael van Elst wrote:
  >  >and the kernel NFS mountroot code seems to alread mount / as read-write
  >  >(different than all other file systems mounted as root - this is bug 2).
  >  
  >  Bug 2 seems to be intentional:
  >  
  >          /*
  >           * Historical practice expects NFS root file systems to
  >           * be initially mounted r/w.
  >           */
  >          mp->mnt_flag &= ~MNT_RDONLY;
 
 There's no reason to mount an nfs root readonly. Mounting root
 readonly is so you can fsck.
 
 -- 
 David A. Holland
 dholland%netbsd.org@localhost