From: "Dr. Werner Fink" <werner@suse.de>
To: util-linux@vger.kernel.org
Subject: Re: [util-linux] [PATCH 4/5] sulogin: mount temporary /dev and /proc if not found
Date: Fri, 7 Dec 2012 18:25:06 +0100 [thread overview]
Message-ID: <20121207172506.GA27066@boole.suse.de> (raw)
In-Reply-To: <20121207170118.GG603@rampage>
On Fri, Dec 07, 2012 at 12:01:18PM -0500, Dave Reisner wrote:
>
> Ok, I didn't realize udev still was responsible for these links these
> days, but perusing the code shows otherwise. Could you explain why
> sulogin is wanted in the initramfs? Seems like an odd use case to me.
>
> > If in initrd the sulogin will be called after mounting /proc and /dev and running
> > udev rules or enabling the links in initrd then the code does only check for existence
> > of /proc and /dev.
>
> If you're in the initramfs, rootfs is tmpfs. Won't your statfs check
> return a buffer which has f_type == TMPFS_MAGIC even if /dev is not
> mounted?
Hmmm ... maybe a check for RAMFS_MAGIC should be done before to
distinguish between TMPFS_MAGIC or RAMFS_MAGIC for the initrd.
Or the mounted /proc could be used to check for /dev
Werner
--
"Having a smoking section in a restaurant is like having
a peeing section in a swimming pool." -- Edward Burr
next prev parent reply other threads:[~2012-12-07 17:25 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-07 8:00 [PATCH 1/5] sulogin: use the linked lists from list.h for consoles list Werner Fink
2012-12-07 8:00 ` [PATCH 2/5] sulogin: make usleep() workaround work Werner Fink
2012-12-18 15:07 ` Karel Zak
2012-12-07 8:00 ` [PATCH 3/5] sulogin: use alarm function to indicate if a timeout occurs Werner Fink
2012-12-18 15:15 ` Karel Zak
2012-12-07 8:00 ` [PATCH 4/5] sulogin: mount temporary /dev and /proc if not found Werner Fink
2012-12-07 14:17 ` Dave Reisner
2012-12-07 15:49 ` [util-linux] " Dr. Werner Fink
2012-12-07 17:01 ` Dave Reisner
2012-12-07 17:25 ` Dr. Werner Fink [this message]
2012-12-10 12:27 ` Werner Fink
2012-12-18 15:23 ` Karel Zak
2012-12-23 4:33 ` Dave Reisner
2012-12-23 21:53 ` Karel Zak
2012-12-10 12:27 ` [PATCH 5/5] sulogin: add multi console feature from SysVinit sulogin Werner Fink
2012-12-18 15:18 ` Karel Zak
2012-12-18 15:17 ` [PATCH 4/5] sulogin: mount temporary /dev and /proc if not found Karel Zak
2012-12-07 8:00 ` [PATCH 5/5] sulogin: add multi console feature from SysVinit sulogin Werner Fink
2012-12-07 10:27 ` Dr. Werner Fink
2012-12-18 15:05 ` [PATCH 1/5] sulogin: use the linked lists from list.h for consoles list Karel Zak
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