On Mon, Nov 23, 2015, at 17:32, Richard Weinberger wrote: > Am 23.11.2015 um 21:31 schrieb Balaco Baco: > > On Mon, Nov 23, 2015, at 17:07, Richard Weinberger wrote: > >> Am 23.11.2015 um 21:04 schrieb Balaco Baco: > >>> On Mon, Nov 23, 2015, at 16:38, Richard Weinberger wrote: > >>>> Am 23.11.2015 um 20:04 schrieb Balaco Baco: > >>>>> On Mon, Nov 23, 2015, at 13:35, Richard Weinberger wrote: > >>>>>> Am 22.11.2015 um 16:39 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. > >>>>>> > >>>>>> "Does not work" is not a valid error description. > >>>>>> Please find out what exactly does not work. > >>>>> > >>>>> There is no clear error. In this paragraph I just pointed to something > >>>>> in the instructions that mislead me to give the path to the folder > >>>>> *where* slirp was, instead of the slip program itself, its file. The > >>>>> most I could see that did not work I said right after, below in the > >>>>> previous message. Please assume and try to see that I'm trying my best > >>>>> to follow your directions, but I still could not do it although you just > >>>>> said you did. > >>>>> > >>>>> You may also ask me to directly do things or steps that you do (maybe > >>>>> it's something I don't know or do that make it don't work). > >>>>> > >>>>> > >>>>>>> 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. > >>>>>>> > >>>>>>> ======================== > >>>>>> > >>>>>> DHCP cannot work on SLIRP. > >>>>>> That's why you have to configure the interface manually. > >>>>>> > >>>>>>> What can I do? > >>>>>>> > >>>>> > >>>>> If configure the interface manually is to type the commands (inside UML) > >>>>> below, that I did before: > >>>>> > >>>>> root@uml:~# ifconfig eth0 10.0.2.15 up > >>>>> root@uml:~# route add default gw 10.0.2.15 > >>>>> > >>>>> It did not work. > >>>>> > >>>>> What information is useful for you? I don't know. So, since you seem to > >>>>> have thought I did not try enough before, now I'm sending the whole boot > >>>>> log, and each step I did before and repeated right now, after I read > >>>>> your message. > >>>>> > >>>>> > >>>>>>>> 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. > >>>>>> > >>>>>> AFAIK Debian folks have some patches in their package. > >>>>> > >>>>> I choose the best distro I know for the intended uses (RedHat and sister > >>>>> is usually not that good, but I don't discard using them to start). I > >>>>> did not use Fedora or RedHat that even the blog shows because I don't > >>>>> want and don't need graphical interface. Just CLI is perfect, just fine. > >>>>> > >>>>> If you can point which patch or which feature Debian patched I can work > >>>>> around it. Right now I know that it may have some problem, but I can > >>>>> even look for help my self or anywhere else because I don't know what it > >>>>> is - not much clues I can tell. > >>>>> > >>>>>> Thanks, > >>>>>> //richard > >>>>> > >>>>> Ironically, doing the same steps I did before it seemed to work today. > >>>>> :-/ I hate when this happens... hopefully it won't stop tomorrow, with > >>>>> another ironic happening. > >>>>> > >>>>> Now, with a close to work situaton, I guessed that it just needed to > >>>>> find the DNS the host uses (easy, fine), and then I repeat the route add > >>>>> command. But this is not true. Before I update UML's /etc/resolv.conf > >>>>> the only IP I can ping from UML is 127.0.0.1. What else do I need to do > >>>>> to have network in UML? > >>>> > >>>> ICMP is not supported on SLIRP. Only UDP and TCP. > >>>> > >>> > >>> What does this mean? Please explain a bit more clearly to me. I don't > >>> have much knowledge as you with UML and Kernel related (low system) > >>> things. > >> > >> This has 0 do to with UML. SLIRP is a very old user space tool. :) > >> > >>> Is TPC/IP supported? In theory, TPC happens above IP communication > >>> layer. So, should it work? > >> > >> TPC? > >> > > > > That's just a typo, of course. > > As I wrote, TCP and UDP work on SLIRP. > > >>> The network you said you had is the same as I just saw/did? Although I > >>> can communicate with the host, I won't be able to use its Internet > >>> connection? > >> > >> You can also use Internet. > >> > > > > I cannot. I have showed this with the attached with details in the > > complete session attached file. I can ping 127.0.0.1 (the host) but > > cannot ping any other IP addresses. May you help me find out the reason? > > If you need more information that I have sent in the attached file, > > please ask me. > > As I wrote ICMP is not supported on SLIRP. > > Thanks, > //richard
Please be clearer. You said "you can also use the Internet". But after that you repeat "As I wrote ICMP is not supported on SLIRP." So what do I have here? What are the practical ways to use the Internet within UML machine? The things want to do is to download packages, open websites, and other common Internet uses from most computers. -- http://www.fastmail.com - Access your email from home and the web ------------------------------------------------------------------------------ Go from Idea to Many App Stores Faster with Intel(R) XDK Give your users amazing mobile app experiences with Intel(R) XDK. Use one codebase in this all-in-one HTML5 development environment. Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs. http://pubads.g.doubleclick.net/gampad/clk?id=254741551&iu=/4140 _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
