From: Alexander Skwar <alexanders.mailinglists+nospam@gmail.com>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] Determine boot disk device name...
Date: Tue, 26 Oct 2010 10:29:41 +0200 [thread overview]
Message-ID: <AANLkTikp-8mrhoPSaZYT=m7CwCMfPrvBUK9tiQBeZFmB@mail.gmail.com> (raw)
In-Reply-To: <20101025212848.GA6297@us.ibm.com>
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Hi!
2010/10/25 Malahal Naineni <malahal@us.ibm.com>
> Alexander Skwar [alexanders.mailinglists+nospam@gmail.com<alexanders.mailinglists%2Bnospam@gmail.com>]
> wrote:
> > I also wanted to suggest this, but…
> >
> > benutzer@horst:~$ cat /proc/cmdline
> > root=/dev/xvda1 ro
>
> I got confused with boot and root! Thanks for correction. Usually boot
> disk is mounted at /boot. Your boot disk could be same as root disk (in
> this case there would not be anything mounted at /boot but just a
> directory).
>
Well, but even the location of the /boot directory/partition doesn't
necessarily tell, from where someone booted - suppose, you've got
a boot disk /dev/sda. On /dev/sda, there's grub. Grub's setup so,
that it boots a system/kernel, which is on /dev/sdb. The system
is "self contained" on /dev/sdb.
In such a case, the system would've been booted from /dev/sda,
but there's no way to tell that, once the "/dev/sdb system" has
been started - or is there?
Cheers,
Alexander
--
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next prev parent reply other threads:[~2010-10-26 8:30 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-24 2:58 [linux-lvm] Determine boot disk device name Jon Price
2010-10-25 18:11 ` Malahal Naineni
2010-10-25 19:21 ` Alexander Skwar
2010-10-25 21:28 ` Malahal Naineni
2010-10-26 8:29 ` Alexander Skwar [this message]
2010-10-26 18:41 ` Malahal Naineni
2010-10-26 18:55 ` Ray Morris
2010-10-25 19:16 ` Stephane Chazelas
2010-12-02 3:12 ` Stuart D. Gathman
2010-10-27 5:52 ` Luca Berra
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