Re: [User-mode-linux-user] cannot install user-mode linux

[<zl...@tc...>]

Jeff Dike wrote:
>  > Kernel panic: Bogus address in segv
>  > ===================================
>  
>  > It is not clear for me what the interface umn is and why I have
>  > permission denied.  Any explanations are appreciated. I use RedHat
>  > Linux 6.0. 
>  
>  Is it consistent?  I get that on occasion, but I haven't been able to track it 
>  down yet.
> 

Yes, I can repeat it.
 
>  > Bringing up interface umn SIOCSIFADDR: Permission denied
>  >                                                         SIOCSIFFLAGS:
>  > Permission denied
>  >        SIOCSIFDSTADDR: Permission denied
>  >                                         SIOCSIFFLAGS: Permission
>  > denied 
>  
>  BTW, the net would work better if you made um_ifconfig setuid root.
>  
>  				Jeff
>  

It was already done:

-rwsr-sr-x  root users             33032  Dec 19 22:26 um_ifconfig

Btw, I run run_linux as a root so probably it is not important.
I know why I got  SIOCSIFADDR: Permission denied. It was because I had 
user permission, instead of root permission. I changed it and now I
got:

Bringing up interface umn SIOCSIFFLAGS: No such device

The rest is the same (up to Kernel panic: Bogus address in segv)

Zbigniew