Date: Thu, 18 Oct 2012 10:59:03 +0300 From: Andriy Gapon <avg@FreeBSD.org> To: Alexander Yerenkow <yerenkow@gmail.com> Cc: freebsd-current <freebsd-current@FreeBSD.org> Subject: Re: A little question about safe mode Message-ID: <507FB6C7.50402@FreeBSD.org> In-Reply-To: <CAPJF9wm-dvUwgQzZzijakD=FBM9HTBQ%2BF4jC510KX%2BUOG-SfgA@mail.gmail.com> References: <CAPJF9wm-dvUwgQzZzijakD=FBM9HTBQ%2BF4jC510KX%2BUOG-SfgA@mail.gmail.com>
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First, I see "safe mode" mentioned in the subject, but nowhere in the body of the message? So, what's up with the safe mode? :-) on 18/10/2012 10:35 Alexander Yerenkow said the following: > Hello there. > I have problem here, and don't know if it's bug or "feature" :) > If I prerare boot media (hdd, sd card,usb, etc) with FreeBSD, and NOT > create there fstab, I see such behavior: > > 1. I need enter manually where from mount root (e.g. ufs:ada0s1a or > ufs:ada0s1a rw) This is a feature. You might want consider using options ROOTDEVNAME in your kernel. > 2. If I enter ufs:ada0s1a rw - I have / mounted in read-only anyway. <== Is > this bug?... It looks like a feature. The low-level mountroot code always mounts / as r/o. It's supposed to be later remounted as r/w by rc.d/root script. > 3. If I try to make it rw, with commands > mount -o rw -u /dev/ada0s1a / > there is no errors, but root is still RO. This sounds like a bug. Is there anything on the system console? > 4. I can't umount / remount some elsewhere this disk, just to create fstab > (it's already mounted and can't be updated). > > So, is this as-by-design, that you need "any other" media to boot, just to > create fstab, or there is "rw" mode broken, or I just missed something? > > It's very disappointing to be able boot interactively into system, but have > no way to "fix" fstab to make it non-interactively bootable :) You can try to create an md-based filesystem, mount it under /mnt and then unionfs-mount it over /etc. -- Andriy Gapon
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