Thanks for help! I have not ever mount /sys and /proc filesystems, so is there other way to chech the host's ip address and netdevice information? Best Regards! 2013/8/13 Srinivas Ganji <srinivasganji.kernel@gmail.com>:

Hi John,

Have you set "NAT" under Devices --> Network Adapters? This is just a guess and I am not sure whether this serves your purpose or not.

Regards, Srinivas G

On Tue, Aug 13, 2013 at 10:57 AM, Hatte John <june.tune.sea@gmail.com> wrote:

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hi:

I am trying to boot up my linux kerel from virtual machine ,everything goes fine . but when I typed 'ifconfig' command , it reports no such file : /proc/net/dev .

What is the reason ? I have enable netcard for my virtual machine ,is this a problem of software or hardware?

Is the file " /proc/net/dev" created at netcard initailize function ?

Thanks!

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Thanks for reply! Acctually ,I have just entered shell command line ,no process is running yet ! I don 't clear of why /proc have not been mounted . So I want to find reason by debuging ,and I find /proc filesystem exist in ram ,with several entries ceated . Chould you tell me the key point that mount /proc on system ? Best Regards! 2013/8/14 <Valdis.Kletnieks@vt.edu>:

On Tue, 13 Aug 2013 21:43:55 +0800, Hatte John said:

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I have not ever mount /sys and /proc filesystems, so is there other way to chech the host's ip address and netdevice information?

If in fact /sys and /proc aren't getting mounted, a *whole lot* of stuff won't work (for instance, /bin/ps will break, as will /bin/df. I'm reasonably sure that most udev implementations need /sys around, so I'm surprised that you're getting booted at all...

Thanks ! I use initramfs in booting stage ,and also mount /proc in init script file . I am puzzled that when is nic driver registered ? when chould nic start up and work well ? Best Regards! 2013/8/19 <Valdis.Kletnieks@vt.edu>:

On Sun, 18 Aug 2013 22:07:02 +0800, you said:

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Acctually ,I have just entered shell command line ,no process is running yet !

Actually, if you have a shell command line, at least one process is in fact running - your shell itself.

...

I don 't clear of why /proc have not been mounted . So I want to find reason by debuging ,and I find /proc filesystem exist in ram ,with several entries ceated .

Chould you tell me the key point that mount /proc on system ?

Depends on your system. If you have an embedded system, it may mot mount it at all. If your system uses an initrd or initramfs, it probably gets done by the startup script in there. If neither of those happen, it's usually done by /etc/rc.sysinit or similar, unless your system uses systemd for startup in which case you're going to be digging around to figure out where it does it.