REPOST: null device in linux jail root

Lucas Holt luke at
Tue Dec 16 11:35:12 PST 2003

I'll take a guess here and say you should have used /

The linux port is installed in /compat/linux

i would assume the jail is /compat/linux.  Therefore you could run the 
command from /.

On Dec 16, 2003, at 2:15 PM, Charles Howse wrote:

> Surely, *someone* who reads this list has upgraded the linux_base 
> port, and
> figured out the proper way to respond to this prompt.
> ___________________________________________
> Hi,
> I installed Linux compatibility when I installed FBSD 4.8, but I've 
> never
> really done anything with it.
> While portupgrading , I was presented with a prompt that I don't know 
> how to
> respond to:
> You need to create the null device in your jail root environment.
> Run the following commands outside the jail root environment,
> and then press enter:
> mkdir -m 0755 -p <Jail Root dir>/dev
> rm -f <Jail Root dir>//compat/linux/dev/null
> mknod <Jail Root dir>//compat/linux/dev/null c 2 2
> chmod 666 <Jail Root dir>//compat/linux/dev/null
> I found that this prompt comes from the makefile in the linux-base 
> port, which
> I don't have access to at the moment, so I can't quote it exactly.
> Clueless, I just pressed enter at the prompt, thinking I could always 
> go back
> and do it later, or deinstall the port and reinstall it when I learn 
> what to
> do.  
> I know what a jail is, but how do I know what my <Jail Root dir> is?
> Also, why the double slashes in the last 3 lines?  What do they mean?
> What is the proper way to deal with this prompt?
> -- 
> Thanks,
> Charles
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Lucas Holt
Luke at
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