[gentoo-user] safe devfs -> udev migration

[gentoo-user] safe devfs -> udev migration

[Richard P. Groenewegen]

All,

During the gentoo installation I had very nasty error messages after
the first reboot.  The partition table of my harddisk was unreadable
and the file system could not be mounted.

Installation of devfs solved it, but, as I can tell from the mailing
list devfs is obsolete.

**    What is a safe way to migrate to udev?    **

I'd prefer to do only steps that are reversible, as the installation
is now finished and it took a while.  For your information, I have
/dev support in my 2.6 kernel.  Is it essential to remove /dev
support?

best regards,
Richard
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Re: [gentoo-user] safe devfs -> udev migration

[brettholcomb]

I used the steps on the Gentoo docs.  They also link to some udev site.

Essentially
1.  Set up kernel not to autostart devfs (when everything is okay you can remove devfs from the kernel)
2.  emerge udev
3.  I modified /etc/conf.d/rc (I think it was) to have a devfs and a udev version.  The udev version did not use the tarball and had another variable set.
4. Save the devfs rc and then copy the udev rc to rc
5. Reboot.

For me it worked.

> 
> From: "Richard P. Groenewegen" <rpg@xs2all.net>
> Date: 2005/07/19 Tue PM 01:10:10 EDT
> To: gentoo-user@lists.gentoo.org
> Subject: [gentoo-user] safe devfs -> udev migration
> 
> All,
> 
> During the gentoo installation I had very nasty error messages after
> the first reboot.  The partition table of my harddisk was unreadable
> and the file system could not be mounted.
> 
> Installation of devfs solved it, but, as I can tell from the mailing
> list devfs is obsolete.
> 
> **    What is a safe way to migrate to udev?    **
> 
> I'd prefer to do only steps that are reversible, as the installation
> is now finished and it took a while.  For your information, I have
> /dev support in my 2.6 kernel.  Is it essential to remove /dev
> support?
> 
> best regards,
> Richard
> -- 
> gentoo-user@gentoo.org mailing list
> 
> 

-- 
gentoo-user@gentoo.org mailing list

Re: [gentoo-user] safe devfs -> udev migration

[Volker Armin Hemmann]

On Tuesday 19 July 2005 19:10, Richard P. Groenewegen wrote:
> All,
>
> During the gentoo installation I had very nasty error messages after
> the first reboot.  The partition table of my harddisk was unreadable
> and the file system could not be mounted.
>
> Installation of devfs solved it, but, as I can tell from the mailing
> list devfs is obsolete.
>
> **    What is a safe way to migrate to udev?    **
>

follow the devfs-to-udev guide.
You'll find it on gentoo.org.

But beware, if you forget an etc-update, some stuff may be troublesom.
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gentoo-user@gentoo.org mailing list

Re: [gentoo-user] safe devfs -> udev migration

[Mariusz Pękala]

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On 2005-07-19 14:59:19 -0400 (Tue, Jul), brettholcomb@bellsouth.net wrote:
> I used the steps on the Gentoo docs.  They also link to some udev site.
> 
> Essentially
> 1.  Set up kernel not to autostart devfs (when everything is okay you can remove devfs from the kernel)
> [...]

As a note for ones interested, you may leave devfs compiled in kernel, even have
set it to automount, and then you may use a kernel boot option (GRUB,LILO):
 "devfs=nomount"
as noted in kernel description of CONFIG_DEVFS_MOUNT.

I've tested it about a month ago (2.6.11, but don't remember exact version)

HTH

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