Hi I tried to clone the repository
I ran 'bzr checkout bzr://bzr.helenos.org/mainline HelenOS' I get the following error bzr: ERROR: Connection error: failed to connect to bzr.helenos.org:4155: Connection timed out My internet connection is working fine. On Fri, Sep 21, 2012 at 12:21 AM, Martin Decky <[email protected]> wrote: > Hello Kapil, > > thanks for your interest in HelenOS! > > > I have recently installed HelenOS and would like to contribute to its >> development. This would be my first open source development project, so >> could anyone tell me how I should start ? >> > > You should probably start by getting the current mainline branch of > HelenOS and compiling it on your host system. This is described on our wiki > [1]. You should also spend some time reading our documentation from the > 0.2.0 release [2]. It is slightly outdated, but most of the generic facts > are still valid. Then, of course, the ultimate source of knowledge about > HelenOS is the HelenOS source code itself. Don't be afraid, we try hard to > make it understandable. But don't expect to get everything in a couple of > hours, though :-) > > A basic text describing how to contribute is also on our wiki [3]. In case > you have any specific questions, please do not hesitate to send them to the > mailing list. > > [1] > http://trac.helenos.org/wiki/**UsersGuide/CompilingFromSource<http://trac.helenos.org/wiki/UsersGuide/CompilingFromSource> > [2] > http://www.helenos.org/**documentation<http://www.helenos.org/documentation> > [3] > http://trac.helenos.org/wiki/**HowToContribute<http://trac.helenos.org/wiki/HowToContribute> > > > 1. On executing 'exit', it would exit the shell. But nothing happens >> after that and I can't do anything, not even restart the shell. >> > > Well, you can always use the F2, F3, etc., keys and switch to an another > virtual console. There should be yet another instance of the shell running > there. > > Once you exit all the shells, there is indeed no easy way how to spawn a > new one. This limitation will be mitigated once we will implement the > notion of user sessions -- when you exit the shell, you should get a login > prompt of some sort and thus the possibility to spawn a new shell. > > In the current mainline branch the user interface looks a little bit > different, because we have already integrated the initial GUI > implementation. > > > it doesn't even take me to kernel console. >> > > You should be able to press F12 and get to the kernel console at any time. > > > 2. Like above, on executing 'halt' in kcon, kernel halts, but I can't do >> anything after that. Either it should shut down or something should >> happen, not just freeze out. >> > > If you use the "halt" command in the kernel console, it just halts. That's > what you wanted :-) > > But seriously, powering off a computer is actually not an easy task. On a > PC this usually requires to run some ACPI routine or worse. Due to the > microkernel design of HelenOS the kernel is really not supposed to know > anything about such things, there should be an user space driver to handle > this instead. > > But even that is not so easy, because you cannot halt the system in the > kernel and then ask an user space device driver to power off the machine, > since there is no user space running any more (a chicken-and-egg problem). > You see, it is really not so easy as it looks. And because the primary task > of an operating system is to run (shutting down is actually just a corner > case), we didn't spent much time implementing this properly yet. But I > agree with you that it needs to be solved, eventually. > > As an aside: The kernel console is actually only a debugging feature, it > won't be present on any machine running HelenOS "in production". But there > is still a long and winding road to HelenOS running in production. > > > By the way, is there no option to shut down >> the system ? >> > > You can use the "reboot" command from the kernel console. That should at > least reboot the system. This is easier that powering it off on a PC. > > > 3. When I executed 'continue' in kernel console, something went wrong. >> The shell started, but without display and on executing some commands, >> it overlapped with the kernel console. (I've attached the image) >> > > Thanks for letting us know. This bug slipped somehow into the release, but > it can be reproduced only if you use the "kcon" shell command to get to the > kernel console. If you use the F12 key to get to the kernel console and > then use the "continue" command, the user space output redraws fine. > > > 4. I cannot view anything that is outside the qemu window i.e. I cannot >> scroll. This may be a problem of qemu(I don't know ?) >> > > It's not a problem of QEMU. There is simply no scrollback functionality > implemented in HelenOS yet. You see, there are only a handful of HelenOS > developers, thus our manpower is limited. But hey, the release number is > 0.5, we don't claim that we can ship it to customers now :-) > > Anyway, any contribution will be more than welcomed. > > > Also, is there any documentation of the HelenOS API ? >> > > Again, the documentation is lacking behind and the most definitive source > is the source code. You should look into uspace/lib/c for starters. The API > is similar to standard C and POSIX and should not be very surprising if you > have say some GNU/Linux experience. > > > Martin Decky > > ______________________________**_________________ > HelenOS-devel mailing list > [email protected] > http://lists.modry.cz/cgi-bin/**listinfo/helenos-devel<http://lists.modry.cz/cgi-bin/listinfo/helenos-devel> >
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