From: hpa@zytor.com (H. Peter Anvin)
To: linux-kernel@vger.kernel.org
Subject: Re: initramfs: is it supposed to work?
Date: Sat, 1 Jan 2005 20:31:42 +0000 (UTC) [thread overview]
Message-ID: <cr71be$1sv$1@terminus.zytor.com> (raw)
In-Reply-To: pan.2005.01.01.15.40.12.264342@dungeon.inka.de
Followup to: <pan.2005.01.01.15.40.12.264342@dungeon.inka.de>
By author: Andreas Jellinghaus <aj@dungeon.inka.de>
In newsgroup: linux.dev.kernel
>
> Hi,
>
> run-init seems to mount the new root, rm files in the old root,
> mount, chroot, open the console, exec. any reason we can't do
> that in shell script commands?
>
> > You don't pivot_root initramfs, because initramfs *IS* rootfs.
> >
> > Instead, use the run-init program
>
> ok, but still: is it ok for the kernel to die?
> after all pivot_root works fine, unless /initrd is unmounted.
> what exactly is the kernel internal that makes pivot_root special?
>
Your /initrd here is rootfs, and by unmounting rootfs, you've pulled
the rug out from underneath the kernel any time it needs to spawn a
kernel thread.
-hpa
prev parent reply other threads:[~2005-01-01 20:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-31 0:51 initramfs: is it supposed to work? Michael Tokarev
2004-12-31 8:06 ` H. Peter Anvin
2005-01-01 15:40 ` Andreas Jellinghaus
2005-01-01 20:31 ` H. Peter Anvin [this message]
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