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From: Alberto Alonso <alberto@ggsys.net>
To: Andries Brouwer <aebr@win.tue.nl>
Cc: Pavel Machek <pavel@ucw.cz>, Andrew Morton <akpm@osdl.org>,
	linux-kernel@vger.kernel.org
Subject: Re: Ext3 mounted as ext2 but journal still in effect.
Date: Thu, 18 Jan 2007 21:23:07 -0600	[thread overview]
Message-ID: <1169176987.1509.1.camel@w100> (raw)
In-Reply-To: <20070118220529.GA20862@win.tue.nl>

Thank you all for all your input. The tune2fs option was eventually
used and we run into other problems. I think Andries was right in
that the initrd was interfering, that's where we run into issues
after the tune2fs.

I was trying to avoid the tune2fs as it involves booting into
a live CD and brings the system down to where I can't access
it over the network (it is a 4 hour drive).

At the end we had to replace the drive and recreate all file
systems. If it ever happens again I will pay closer attention
to the initrd commands to see if the rootfstype=ext2 was overridden
with what's there.

Thanks,

Alberto

On Thu, 2007-01-18 at 23:05 +0100, Andries Brouwer wrote: 
> >> You were right, even after making the changes, it seems to be 
> >> telling lies:
> >> 
> >> # mount
> >> /dev/hda2 on / type ext2 (rw,usrquota)
> 
> Roughly speaking:
> /etc/mtab shows you what you said to mount.
> /proc/mounts shows what the current kernel state is.
> These may differ greatly.
> 
> For all filesystems mounted by you using mount(8), a line is added
> to /etc/mtab, where the contents of that line is related to the
> given mount command, but not to what the kernel did.
> 
> For the root filesystem, mount(8) writes an initial line in /etc/mtab
> taken from /etc/fstab. Again the information is from you, not from the kernel.
> 
> >> # dmesg | grep 'Kernel command'
> >> Kernel command line: ro root=/dev/hda2 rootfstype=ext2
> > ...
> >> /dev/root / ext3 rw 0 0
> 
> It would be a bad bug if the kernel mounted its root filesystem
> with a type different from the type given in "rootfstype=".
> But I see you use an initrd, and there can be all kinds of commands there.
-- 
Alberto Alonso                        Global Gate Systems LLC.
(512) 351-7233                        http://www.ggsys.net
Hardware, consulting, sysadmin, monitoring and remote backups


      reply	other threads:[~2007-01-19  3:23 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-12  5:08 Alberto Alonso
2007-01-12  5:25 ` Andrew Morton
2007-01-12  6:57   ` Alberto Alonso
2007-01-12 14:41     ` Pavel Machek
2007-01-15 15:26       ` Phillip Susi
2007-01-18 22:05       ` Andries Brouwer
2007-01-19  3:23         ` Alberto Alonso [this message]

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