Re: [uml-user] Detail with one config warning

[Balaco B. <bal...@im...>]

On Fri, Nov 13, 2015, at 18:15, Richard Weinberger wrote:
> Am 12.11.2015 um 14:22 schrieb Balaco Baco:
> > On Thu, Nov 12, 2015, at 10:00, Richard Weinberger wrote:
> >> Am 12.11.2015 um 02:57 schrieb Balaco Baco:
> >>> On Wed, Nov 11, 2015, at 17:34, Richard Weinberger wrote:
> >>>> Am 11.11.2015 um 18:57 schrieb Balaco Baco:
> >>>>> Since I have no root access in the host machine, I must use 'slirp'.
> >>>>> Right? Now I'll install it (https://en.wikipedia.org/wiki/Slirp) from
> >>>>> source and pass the full path to UML in the command line, e.g.:
> >>>>
> >>>> Yes.
> >>>>
> >>>>> eth0=slirp,,/home/me/bin/
> >>>>
> >>>> Documentation says: ethn=slirp,ethernet address,slirp path
> >>>>
> >>>> That said, the slirp tool is old and AFIAK unmaintained.
> >>>> qemu forked it a long time ago and has it integrated into its
> >>>> source.
> >>>>
> >>>
> >>> Documentation of UML also said that ethernet address is optional. I did
> >>> both ways, none worked (and it took me a few minutes and tries to find
> >>> out that not all MAC addresses are possible to use for a virtual machine
> >>> like UML; is this at least mentioned in some UML doc? It shouls, IMHO).
> >>>
> >>> So, is it possible that I run an UML with full Internet access, and
> >>> without having root access in the host machine? Or am I trying something
> >>> that from the start was not possible?
> >>>
> >>> If it is not possible, is it easy to set up some form of file sharing
> >>> between the host and UML machine? (again, this must *not* depend on host
> >>> root access!)
> >>
> >> As I said, if you don't have root on the host, you have to use slirp.
> >>
> > 
> > And I am using slirp. But it do not work yet. I'm not sure what is
> > wrong. May you help me?
> 
> Just gave it a try. Works here.
> 
> ./linux ubda=../Downloads/Debian-Squeeze-AMD64-root_fs mem=1G
> eth0=slirp,FE:FD:01:02:03:04,/home/rw/work/slirp/slirp-1.0.17/src/slirp
> 
> root@uml:~# ifconfig eth0 10.0.2.15 up
> root@uml:~# route add default gw 10.0.2.15

Do not work for me. And to point directly to the slirp program instead
of its folder (which is understood by many as the *path* for anything,
not the things themselves, with full path) is news for me, and something
that should be pointed in the docs. I think many others will understand
it as I did before you said this.

Now there is a few lines about slirt and ETH0:

=======================
[autodetect SLIP/CSLIP, MTU 1500, MRU 1500, 115200 baud]

SLiRP Ready ...
Unsupported device type 256 for "eth0"
Failed to bring up eth0.
done.

========================

What can I do?

> Then you can use networking. Please not that slirp does not have a
> performance.
> Depending on your slirp package you can tweak it.

I have compiled it from source. Do you know exactly where and how I can
tweak it? If so, please say how, so I don't have to search and find what
is already known.

Thank you


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