Re: difference between gentoo=nodevfs devfs=nomount

[Mike Frysinger <vapier@gentoo.org>]

On Thursday 20 May 2004 04:16 pm, Nicolas DELY wrote:
> In my gentoo, there are a linux kernel 2.6.6, and no devfs flag in
> kernel.  I would like no more devfs and only udev. I'm wondering what
> are the differences between the kernel boot option: gentoo=nodevfs
> devfs=nomount. In gentoo doc, it is suggested to put devfs=nomount to
> disable devfs. Moreover, I have disable RC_DEVICE_TARBALL="no", and
> RC_DEVFSD_STARTUP="no" in /etc/conf.d/rc .

you dont need any of that junk ... just make sure your kernel doesnt have the 
'mount devfs at boot' option selected and install udev ... if your kernel is 
2.6.x the init scripts will detect and default to udev

> 1) With gentoo=nodevfs, kernel stops because it cannot find my / fs .
> There is no symlink in /dev (/dev/hdaX   --> /dev/ide/..../partX) but
> there is a rule in /etc/udev/rules.conf :
> # devfs-names for ide-devices (uncomment only one)
> #  /dev/ide/.../{disc,cd} and /dev/{cdroms,discs}/* type names
> BUS="ide", KERNEL="hd*", PROGRAM="/etc/udev/scripts/ide-devfs.sh %k %b
> %n", NAME="%k", SYMLINK="%c{1} %c{2}"

eh i dont know wtf is doing on here ... if your kernel failed to mount root 
(which i think you're describing), then that has nothing to do with userspace 
and everything to do with your kernel/bootloader

> 2) I don't understand why use ide-cd instead of ide-scsi, with ide-cd
> udev doesn't create node in /dev in order to mount cdrom. Whereas with
> ide-scsi /dev/sr0 is created and I can mount it. Is ide-cd for burn cds?

latest version of cdrdao/linux allows you to do burning with ide/atapi ... 
dont bother screwing around with ide-scsi and just tell your burner apps to 
use like /dev/cdroms/cdrom0

> 3) On my second computer, i have the same config but with
> nvidia-drivers. I run gdm and it works fine execept duplicated symbols
> (xorg-x11) but it is impossible to switch consoles with ctrl-alt-fX, in
> fact X freeze. The framebuffer doesn't work very well, i cannot obtain
> vgay1 : 1024x768, maybe it is because nvidia module is not load at
> kernel boot time?

dont use nvidia kernel module and nvidia frame buffer driver at the same time, 
end of story ... if you do, any problems you have are *your* problems and 
very little chance anyone will help
-mike


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