[gentoo-user] Howto recreate files in /dev?

[gentoo-user] Howto recreate files in /dev?

[Alexander Skwar]

Hello!

Yesterday, I managed to unmount /dev of a running system (which is
an astonishingly stupid idea... :]). As I didn't know how to recreate
the files in /dev (I'm using udev), I rebooted the system.

But rebooting can't be the answer ;)

How do I recreate all the dev files?

Thanks,

Alexander Skwar
-- 
You can never tell which way the train went by looking at the tracks.
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Re: [gentoo-user] Howto recreate files in /dev?

[Ow Mun Heng]

On Fri, 2006-07-21 at 07:47 +0200, Alexander Skwar wrote:
> Hello!
> 
> Yesterday, I managed to unmount /dev of a running system (which is
> an astonishingly stupid idea... :]). As I didn't know how to recreate
> the files in /dev (I'm using udev), I rebooted the system.

The reboot should have settled your problem.
> 
> But rebooting can't be the answer ;)
> 
> How do I recreate all the dev files?

mknod is the only way I know and/but you need to know the major and
minor numbers for all the devices you want to create. 
> 
> Thanks,
> 
> Alexander Skwar
> -- 
> You can never tell which way the train went by looking at the tracks.
-- 
Ow Mun Heng <Ow.Mun.Heng@wdc.com>

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Re: [gentoo-user] Howto recreate files in /dev?

[Dirk Heinrichs]

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Am Freitag, 21. Juli 2006 07:47 schrieb ext Alexander Skwar:

> Yesterday, I managed to unmount /dev of a running system (which is
> an astonishingly stupid idea... :]). As I didn't know how to recreate
> the files in /dev (I'm using udev), I rebooted the system.

/sbin/udevstart could have helped.

Bye...

	Dirk
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Re: [gentoo-user] Howto recreate files in /dev?

[Richard Fish]

On 7/20/06, Alexander Skwar <listen@alexander.skwar.name> wrote:
> Hello!
>
> Yesterday, I managed to unmount /dev of a running system (which is
> an astonishingly stupid idea... :]). As I didn't know how to recreate
> the files in /dev (I'm using udev), I rebooted the system.
>
> But rebooting can't be the answer ;)
>
> How do I recreate all the dev files?

This should work.  It uses the same mechanism that Gentoo (/sbin/rc)
uses at system boot time.  /dev should *not* be mounted when this is
run:

# (source /sbin/functions.sh ; start_addon udev)

HTH,
-Richard
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Re: [gentoo-user] Howto recreate files in /dev?

[Alexander Skwar]

Richard Fish wrote:
> On 7/20/06, Alexander Skwar <listen@alexander.skwar.name> wrote:


>> How do I recreate all the dev files?
> 
> This should work.  It uses the same mechanism that Gentoo (/sbin/rc)
> uses at system boot time.  /dev should *not* be mounted when this is
> run:

/dev should *NOT* be mounted?

What do you mean? Normally, /dev is a tmpfs and needs to be populated. If
/dev wouldn't be tmpfs, your snippet would overwrite everything in
/dev, no? Or would start_addon udev automatically mount a tmpfs in /dev?

> # (source /sbin/functions.sh ; start_addon udev)

Thanks.

Alexander Skwar
-- 
Injustice anywhere is a threat to justice everywhere.
		-- Martin Luther King, Jr.
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Re: [gentoo-user] Howto recreate files in /dev?

[Richard Fish]

On 7/21/06, Alexander Skwar <listen@alexander.skwar.name> wrote:
> /dev should *NOT* be mounted?

What I mean is the command I gave you will attempt to mount /dev.  So
if you are in that situation again, don't try to mount /dev yourself,
just run the command.

You can take a look at /lib/rcscripts/addons/udev-start.sh for more details.

-Richard
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