From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: util-linux-owner@vger.kernel.org Received: from resqmta-ch2-10v.sys.comcast.net ([69.252.207.42]:42287 "EHLO resqmta-ch2-10v.sys.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750949AbaLQXCd (ORCPT ); Wed, 17 Dec 2014 18:02:33 -0500 From: worley@alum.mit.edu (Dale R. Worley) To: Phillip Susi Cc: util-linux@vger.kernel.org Subject: Re: Remount failure without fstab or mtab In-Reply-To: <5491A048.3070103@ubuntu.com> (psusi@ubuntu.com) Date: Wed, 17 Dec 2014 18:02:30 -0500 Message-ID: <87ppbhop6h.fsf@hobgoblin.ariadne.com> Sender: util-linux-owner@vger.kernel.org List-ID: Phillip Susi writes: > I have a bug report in debian about "mount -o remount,rw /" failing > because /etc/fstab does not contain an entry for the root fs, and > /proc is not mounted ( booting with init=/bin/bash for recovery ). > I'm not sure whether this is really a bug or not so I thought I'd ask. I'm not an expert on the Debian version of mount, but my understanding is that if there isn't a line in fstab/mtab, then the mount command must contain both the mount point and the block device because the underlying kernel call must be given both. Check the documentation of "remount" in your "mount" manual page. Dale