Re: Network with QEMU generated image (guix system vm)?
On Wed, Sep 28, 2016 at 12:42:47PM +, ng0 wrote: > What I mean is, I expect this feature (tcp connections in/out to/from > "the internet" to vm) to work in guix system vm, as it is a normal > expectation coming from NixOS and Gentoo that it just works without any > added specialities. Ping does not use TCP/IP. It uses ICMP, which is a different protocol. QEMU has a variety of types of virtualized networking. The basic type does not support ICMP. You should use some other command to test the network. You could use `guix download https://gnu.org/index.html`. It has the advantage of not requiring any packages to be installed.
Re: Network with QEMU generated image (guix system vm)?
ng0: I'm having trouble following what you mean, I'm available on IRC if you want to talk about this further :)
Re: Network with QEMU generated image (guix system vm)?
David Craven writes: >> It should be enough to add “-net user” on the run-vm.sh command line >> (info "(guix) Running GuixSD in a VM"), and then having a DHCP client >> run inside the VM, such as ‘dhcp-client-service’. > > Ah, yes this probably needs some documentation. Also should include an > explanation why the flag isn't added by default and how to connect to > a ssh server running in the vm. > >> Currently I can't ping > > You can't ping a vm anyway since it emulates the TCP/UDP layers I > think and no ICMP. [0] > > [0] > http://unix.stackexchange.com/questions/78953/qemu-how-to-ping-host-network The solutions they describe in the stackexchange answers are some of those "simple" solutions which look even more "simple" to apply on GuixSD than on other systems, like every "simple" solution you find somewhere. What I mean is, I expect this feature (tcp connections in/out to/from "the internet" to vm) to work in guix system vm, as it is a normal expectation coming from NixOS and Gentoo that it just works without any added specialities. As I don't want to spend another week experimenting with this, I will just reconfigure my build server to run from a guix git checkout and test the services directly there. I am working on a system which wraps itself around GuixSD, sort of like an live-system but specific to some preconfigured applications, and I've set phases for myself. I'm stuck on phase I for too long now. Most if not all of what this is will be upstreamed, so at some point you'll see where this getting. -- ng0
Re: Network with QEMU generated image (guix system vm)?
All I'm saying is that you can't use ping. That's all...
Re: Network with QEMU generated image (guix system vm)?
David Craven writes: >> I still can't ping > > You can't ping as I have already mentioned. You need to use TAP/TUN > instead of -net user if you want to be able to ping. Setting up > TAP/TUN for vms doesn't work out of the box yet. Does anyone read the > references I post? =P > Not if the text above them reads like my question was misunderstood (I've read it like you thought I wanted to ping the VM itself, which is something I absolutely don't want to). With this additional information, I will look into the reference later. So you're telling me that the Guix system created VMs are too simplistic to be easily handled such simple tasks/testings and I'd be better off running my system from a git checkout at this moment in time, so I can apply new services and rebuild the running system with them? -- ng0
Re: Network with QEMU generated image (guix system vm)?
> I still can't ping You can't ping as I have already mentioned. You need to use TAP/TUN instead of -net user if you want to be able to ping. Setting up TAP/TUN for vms doesn't work out of the box yet. Does anyone read the references I post? =P
Re: Network with QEMU generated image (guix system vm)?
ng0 writes: > ng0 writes: > >> > Hi, >> >> > It should be enough to add “-net user” on the run-vm.sh command line >> > (info "(guix) Running GuixSD in a VM"), and then having a DHCP client >> > run inside the VM, such as ‘dhcp-client-service’. >> >> > Does that help? >> >> > Ludo’. >> >> I will double check on dhcp-client-service, but afaik I already tried >> all variations of dhcp we can have in guix. >> I will try passing just this again. >> >> > > It should be enough to add “-net user” on the run-vm.sh command line >> > > (info "(guix) Running GuixSD in a VM"), and then having a DHCP client >> > > run inside the VM, such as ‘dhcp-client-service’. >> >> > Ah, yes this probably needs some documentation. Also should include an >> > explanation why the flag isn't added by default and how to connect to >> > a ssh server running in the vm. >> >> > > Currently I can't ping >> >> > You can't ping a vm anyway since it emulates the TCP/UDP layers I >> > think and no ICMP. [0] >> >> Thanks for the answer, but as I've written in my initial question I >> don't want to ping the VM. >> I am creating a VM from a guix branch with ./pre-inst-env guix system >> and a config.scm of a specific system. I've read my initial post again >> and I can understand how you could draw this conclusion. >> So, I am not trying to ping the VM. I am inside the VM and my service >> needs an outbound connection to get an initial file into its home. To >> debug my service I need to test if I can ping gnu.org because connection >> fails in every configuration I have. With the normal qemu VMs running >> Gentoo in NixOS I have, I can use ping which is normal expected behavior. > > Adding: this is about gnunet-service, previously not published. I can't > continue with git service due to the reasons you will see in the > reminder I've sent about it in the thread. > > Do I have to add a networking bridge in GuixSD for the VM to work? > Currently nscd in the VM is discovered at 10.0.2.2 and the VM gets > 10.0.2.15. If so, can you either point me to documentation or what I > have to search for or provide some quick instructions how I set this up > on GuixSD? > >> > [0] >> http://unix.stackexchange.com/questions/78953/qemu-how-to-ping-host-network > > Thanks > -- > ng0 > > So obviously you need to add ntp-service if you just use %base-services + some minor additions I thought it was part of base. This fixes the resolution of names, but introduces problems with ntpd (unexpected origin timestamps). I still can't ping, but I will let the VM run for a while now to see if something needs to get in sync. -- ng0
Re: Network with QEMU generated image (guix system vm)?
ng0 writes: > > Hi, > > > It should be enough to add “-net user” on the run-vm.sh command line > > (info "(guix) Running GuixSD in a VM"), and then having a DHCP client > > run inside the VM, such as ‘dhcp-client-service’. > > > Does that help? > > > Ludo’. > > I will double check on dhcp-client-service, but afaik I already tried > all variations of dhcp we can have in guix. > I will try passing just this again. > > > > It should be enough to add “-net user” on the run-vm.sh command line > > > (info "(guix) Running GuixSD in a VM"), and then having a DHCP client > > > run inside the VM, such as ‘dhcp-client-service’. > > > Ah, yes this probably needs some documentation. Also should include an > > explanation why the flag isn't added by default and how to connect to > > a ssh server running in the vm. > > > > Currently I can't ping > > > You can't ping a vm anyway since it emulates the TCP/UDP layers I > > think and no ICMP. [0] > > Thanks for the answer, but as I've written in my initial question I > don't want to ping the VM. > I am creating a VM from a guix branch with ./pre-inst-env guix system > and a config.scm of a specific system. I've read my initial post again > and I can understand how you could draw this conclusion. > So, I am not trying to ping the VM. I am inside the VM and my service > needs an outbound connection to get an initial file into its home. To > debug my service I need to test if I can ping gnu.org because connection > fails in every configuration I have. With the normal qemu VMs running > Gentoo in NixOS I have, I can use ping which is normal expected behavior. Adding: this is about gnunet-service, previously not published. I can't continue with git service due to the reasons you will see in the reminder I've sent about it in the thread. Do I have to add a networking bridge in GuixSD for the VM to work? Currently nscd in the VM is discovered at 10.0.2.2 and the VM gets 10.0.2.15. If so, can you either point me to documentation or what I have to search for or provide some quick instructions how I set this up on GuixSD? > > [0] > http://unix.stackexchange.com/questions/78953/qemu-how-to-ping-host-network Thanks -- ng0
Re: Network with QEMU generated image (guix system vm)?
> Hi, > It should be enough to add “-net user” on the run-vm.sh command line > (info "(guix) Running GuixSD in a VM"), and then having a DHCP client > run inside the VM, such as ‘dhcp-client-service’. > Does that help? > Ludo’. I will double check on dhcp-client-service, but afaik I already tried all variations of dhcp we can have in guix. I will try passing just this again. > > It should be enough to add “-net user” on the run-vm.sh command line > > (info "(guix) Running GuixSD in a VM"), and then having a DHCP client > > run inside the VM, such as ‘dhcp-client-service’. > Ah, yes this probably needs some documentation. Also should include an > explanation why the flag isn't added by default and how to connect to > a ssh server running in the vm. > > Currently I can't ping > You can't ping a vm anyway since it emulates the TCP/UDP layers I > think and no ICMP. [0] Thanks for the answer, but as I've written in my initial question I don't want to ping the VM. I am creating a VM from a guix branch with ./pre-inst-env guix system and a config.scm of a specific system. I've read my initial post again and I can understand how you could draw this conclusion. So, I am not trying to ping the VM. I am inside the VM and my service needs an outbound connection to get an initial file into its home. To debug my service I need to test if I can ping gnu.org because connection fails in every configuration I have. With the normal qemu VMs running Gentoo in NixOS I have, I can use ping which is normal expected behavior. > [0] > http://unix.stackexchange.com/questions/78953/qemu-how-to-ping-host-network -- ng0
Re: Network with QEMU generated image (guix system vm)?
> It should be enough to add “-net user” on the run-vm.sh command line > (info "(guix) Running GuixSD in a VM"), and then having a DHCP client > run inside the VM, such as ‘dhcp-client-service’. Ah, yes this probably needs some documentation. Also should include an explanation why the flag isn't added by default and how to connect to a ssh server running in the vm. > Currently I can't ping You can't ping a vm anyway since it emulates the TCP/UDP layers I think and no ICMP. [0] [0] http://unix.stackexchange.com/questions/78953/qemu-how-to-ping-host-network
Re: Network with QEMU generated image (guix system vm)?
Hi, It should be enough to add “-net user” on the run-vm.sh command line (info "(guix) Running GuixSD in a VM"), and then having a DHCP client run inside the VM, such as ‘dhcp-client-service’. Does that help? Ludo’.
Re: Network with QEMU generated image (guix system vm)?
Aljosha Papsch writes: > On 26.09.2016 19:30, Jan Nieuwenhuizen wrote: >> What I don't understand: sometimes the clone works instantly, sometimes >> I need to "wait a bit" until cloning or `ping gitlab.com' works. It >> seemed to be always immediately available when I added the mcron and >> rottlog test services, which confuses me even more. Might just be >> coincidence. >> >> Greetings, >> Jan >> > I'm guessing here but it sounds alot like neighbor discovery being slow > with ARP. I had the same issue few months ago with GNS3 where I created > a virtual topology. They use qemu VMs for each host. After creating > topology I wanted to ping a little and some packages would be dropped > before they went through. > > http://wiki.qemu.org/Documentation/Networking suggests in section > "Network backend types" that user networking is slow while tap > networking is fast. So ARP discovery performance might just suffer from > qemu user networking. Maybe it's worth trying tap networking. I used it > a few weeks ago (with lxc containers) and it's pretty flexible. Haven't > paid attention to performance though. Afaik gnunet uses tun/tap when available[0]. My limited knowledge about qemu I assumed that those modules in the way I can configure guix so far do not exist in the way I might want them in the vm (maybe) (different story, different problem). As far as my goals are concerned, this try and and error of something as simple as a stupid ping is slowing me down in developing guix services for my roadmap items. > I might be able to dig up notes on topology if you are interested. In > it, hypervisors form a VPN and integrate guests in the VPN using taps > and bridges. It's not a guix recipe unfortunately, just a Gnome Dia file. I'm very much interested, throw anything at me which helps me to solve this somehow. > Best regards > > [0] However, the lack of calling outside world is not gnunet exclusive. -- ng0
Re: Network with QEMU generated image (guix system vm)?
On 26.09.2016 19:30, Jan Nieuwenhuizen wrote: What I don't understand: sometimes the clone works instantly, sometimes I need to "wait a bit" until cloning or `ping gitlab.com' works. It seemed to be always immediately available when I added the mcron and rottlog test services, which confuses me even more. Might just be coincidence. Greetings, Jan I'm guessing here but it sounds alot like neighbor discovery being slow with ARP. I had the same issue few months ago with GNS3 where I created a virtual topology. They use qemu VMs for each host. After creating topology I wanted to ping a little and some packages would be dropped before they went through. http://wiki.qemu.org/Documentation/Networking suggests in section "Network backend types" that user networking is slow while tap networking is fast. So ARP discovery performance might just suffer from qemu user networking. Maybe it's worth trying tap networking. I used it a few weeks ago (with lxc containers) and it's pretty flexible. Haven't paid attention to performance though. I might be able to dig up notes on topology if you are interested. In it, hypervisors form a VPN and integrate guests in the VPN using taps and bridges. It's not a guix recipe unfortunately, just a Gnome Dia file. Best regards
Re: Network with QEMU generated image (guix system vm)?
Thanks, I've tried to apply a bit of this, however the problem seems to be no matter what I do, I get a read only filesystem. But strange enough: I can touch files. Having a readonly filesystem should prevent me from ping and git clone, but it can't do this. Because the file system is read only, gnunet-service can't write files I think, which prevents fetching the initial hostlist I configured to be fetched. But it could also be because I need to change some defaults I've set, however it should not prevent me from git clone and ping. Jan Nieuwenhuizen writes: > ng0 writes: > >> For a considerable long time and countless tries, that's why I'm asking >> about any way to do this as it just does not work. Just about anything >> which would work on GuixSD from a git checkout of guix.git is welcome. > > Find attached my ssh/lsh-seed hack to allow unattended entry into a vm > and a minimal vm description. > > Here's what I did > > 19:18:45 janneke@dundal:~/src/guix > $ guix system vm os.scm > /gnu/store/4rqrzxz8amzq7j599sfr2vsbwy01fx04-run-vm.sh -net > user,hostfwd=tcp::2223-:& > 19:19:37 janneke@dundal:~/src/guix > $ ssh-keygen -f "$HOME/.ssh/known_hosts" -R [localhost]:2223 > [wait] > 19:19:40 janneke@dundal:~/src/guix > $ ssh localhost -p 2223 > .. RET RET > janneke@os ~$ GIT_SSL_NO_VERIFY=1 git clone > https://gitlab.com/janneke/mes.git > Cloning into 'mes'... > remote: Counting objects: 969, done. > remote: Compressing objects: 100% (348/348), done. > remote: Total 969 (delta 654), reused 886 (delta 610) > Receiving objects: 100% (969/969), 316.35 KiB | 0 bytes/s, done. > Resolving deltas: 100% (654/654), done. > > What I don't understand: sometimes the clone works instantly, sometimes > I need to "wait a bit" until cloning or `ping gitlab.com' works. It > seemed to be always immediately available when I added the mcron and > rottlog test services, which confuses me even more. Might just be > coincidence. > > Greetings, > Jan > > From 8c8687407057ca9caa123905f7ca2e3feeffa203 Mon Sep 17 00:00:00 2001 > From: Jan Nieuwenhuizen > Date: Thu, 8 Sep 2016 14:09:28 +0200 > Subject: [PATCH] gnu: Add lsh-seed, lsh-service: use it. > > --- > gnu/packages/ssh.scm | 26 ++ > gnu/services/ssh.scm | 7 +++ > 2 files changed, 33 insertions(+) > > diff --git a/gnu/packages/ssh.scm b/gnu/packages/ssh.scm > index b2612a4..5255848 100644 > --- a/gnu/packages/ssh.scm > +++ b/gnu/packages/ssh.scm > @@ -517,3 +517,29 @@ manipulating key files.") > authentication with SSH's so-called @dfn{interactive keyboard password > authentication}.") > (license license:gpl2+))) > + > +(use-modules (guix build-system trivial)) > +(define-public lsh-seed > + (package > +(name "lsh-seed") > +(version "0") > +(source #f) > +(build-system trivial-build-system) > +(arguments > + '(#:modules ((guix build utils)) > + #:builder > + (begin > + (use-modules (guix build utils)) > + (let* ((source (assoc-ref %build-inputs "source")) > +(out (assoc-ref %outputs "out")) > +(etc (string-append out "/etc")) > +(seed (string-append etc "/lsh-seed"))) > + (mkdir-p etc) > + (with-output-to-file seed > + (lambda () (display ""))) > + (chmod seed #o400) > + #t > +(home-page "http://localhost";) > +(synopsis "lsh-seed") > +(description "lsh-seed") > +(license license:gpl3+))) > diff --git a/gnu/services/ssh.scm b/gnu/services/ssh.scm > index 462988c..96ba3d7 100644 > --- a/gnu/services/ssh.scm > +++ b/gnu/services/ssh.scm > @@ -68,6 +68,13 @@ > (define (lsh-initialization lsh host-key) >"Return the gexp to initialize the LSH service for HOST-KEY." >#~(begin > + > + (unless (file-exists? #$%yarrow-seed) > +(when (file-exists? #$lsh-seed) > + (mkdir-p (dirname #$%yarrow-seed)) > + (copy-file (string-append #$lsh-seed "/etc/lsh-seed") > #$%yarrow-seed) > + (chmod #$%yarrow-seed #o400))) > + >(unless (file-exists? #$%yarrow-seed) > (system* (string-append #$lsh "/bin/lsh-make-seed") > "--sloppy" "-o" #$%yarrow-seed)) > -- > 2.9.3 > > > > -- > Jan Nieuwenhuizen | GNU LilyPond http://lilypond.org > Freelance IT http://JoyofSource.com | Avatar® http://AvatarAcademy.nl -- ng0
Re: Network with QEMU generated image (guix system vm)?
ng0 writes: > For a considerable long time and countless tries, that's why I'm asking > about any way to do this as it just does not work. Just about anything > which would work on GuixSD from a git checkout of guix.git is welcome. Find attached my ssh/lsh-seed hack to allow unattended entry into a vm and a minimal vm description. Here's what I did 19:18:45 janneke@dundal:~/src/guix $ guix system vm os.scm /gnu/store/4rqrzxz8amzq7j599sfr2vsbwy01fx04-run-vm.sh -net user,hostfwd=tcp::2223-:& 19:19:37 janneke@dundal:~/src/guix $ ssh-keygen -f "$HOME/.ssh/known_hosts" -R [localhost]:2223 [wait] 19:19:40 janneke@dundal:~/src/guix $ ssh localhost -p 2223 .. RET RET janneke@os ~$ GIT_SSL_NO_VERIFY=1 git clone https://gitlab.com/janneke/mes.git Cloning into 'mes'... remote: Counting objects: 969, done. remote: Compressing objects: 100% (348/348), done. remote: Total 969 (delta 654), reused 886 (delta 610) Receiving objects: 100% (969/969), 316.35 KiB | 0 bytes/s, done. Resolving deltas: 100% (654/654), done. What I don't understand: sometimes the clone works instantly, sometimes I need to "wait a bit" until cloning or `ping gitlab.com' works. It seemed to be always immediately available when I added the mcron and rottlog test services, which confuses me even more. Might just be coincidence. Greetings, Jan >From 8c8687407057ca9caa123905f7ca2e3feeffa203 Mon Sep 17 00:00:00 2001 From: Jan Nieuwenhuizen Date: Thu, 8 Sep 2016 14:09:28 +0200 Subject: [PATCH] gnu: Add lsh-seed, lsh-service: use it. --- gnu/packages/ssh.scm | 26 ++ gnu/services/ssh.scm | 7 +++ 2 files changed, 33 insertions(+) diff --git a/gnu/packages/ssh.scm b/gnu/packages/ssh.scm index b2612a4..5255848 100644 --- a/gnu/packages/ssh.scm +++ b/gnu/packages/ssh.scm @@ -517,3 +517,29 @@ manipulating key files.") authentication with SSH's so-called @dfn{interactive keyboard password authentication}.") (license license:gpl2+))) + +(use-modules (guix build-system trivial)) +(define-public lsh-seed + (package +(name "lsh-seed") +(version "0") +(source #f) +(build-system trivial-build-system) +(arguments + '(#:modules ((guix build utils)) + #:builder + (begin + (use-modules (guix build utils)) + (let* ((source (assoc-ref %build-inputs "source")) +(out (assoc-ref %outputs "out")) +(etc (string-append out "/etc")) +(seed (string-append etc "/lsh-seed"))) + (mkdir-p etc) + (with-output-to-file seed + (lambda () (display ""))) + (chmod seed #o400) + #t +(home-page "http://localhost";) +(synopsis "lsh-seed") +(description "lsh-seed") +(license license:gpl3+))) diff --git a/gnu/services/ssh.scm b/gnu/services/ssh.scm index 462988c..96ba3d7 100644 --- a/gnu/services/ssh.scm +++ b/gnu/services/ssh.scm @@ -68,6 +68,13 @@ (define (lsh-initialization lsh host-key) "Return the gexp to initialize the LSH service for HOST-KEY." #~(begin + + (unless (file-exists? #$%yarrow-seed) +(when (file-exists? #$lsh-seed) + (mkdir-p (dirname #$%yarrow-seed)) + (copy-file (string-append #$lsh-seed "/etc/lsh-seed") #$%yarrow-seed) + (chmod #$%yarrow-seed #o400))) + (unless (file-exists? #$%yarrow-seed) (system* (string-append #$lsh "/bin/lsh-make-seed") "--sloppy" "-o" #$%yarrow-seed)) -- 2.9.3 os.scm Description: Binary data -- Jan Nieuwenhuizen | GNU LilyPond http://lilypond.org Freelance IT http://JoyofSource.com | Avatar® http://AvatarAcademy.nl
Re: Network with QEMU generated image (guix system vm)?
Jan Nieuwenhuizen writes: > ng0 writes: > >>> /gnu/store/cgb3rvmyddy114vzp9xk2y05vwn3ka18-run-vm.sh -net nic -net >>> user,hostfwd=tcp::2223-:,hostfwd=tcp::3001-:3000,hostfwd=tcp::5433-:5432& >>> >>> together with (dhcp-client-service) you can connect in (via port >>> forwarding) and out. >> >> I think there's a misunderstanding. > > Apparently ;-) > >> I don't need to do in/out from host >> to vm, I need a simple VM -> WORLD connection. > > Yes, that should work. Possibly slower than setting up a bridge though. > Have you tried? For a considerable long time and countless tries, that's why I'm asking about any way to do this as it just does not work. Just about anything which would work on GuixSD from a git checkout of guix.git is welcome. >> What you wrote could help with testing the git-service one last time >> as this does require host<->vm connection, thanks. > > Nice. > > Greetings, > Jan > > -- > Jan Nieuwenhuizen | GNU LilyPond http://lilypond.org > Freelance IT http://JoyofSource.com | Avatar® http://AvatarAcademy.nl > -- ng0
Re: Network with QEMU generated image (guix system vm)?
ng0 writes: >> /gnu/store/cgb3rvmyddy114vzp9xk2y05vwn3ka18-run-vm.sh -net nic -net >> user,hostfwd=tcp::2223-:,hostfwd=tcp::3001-:3000,hostfwd=tcp::5433-:5432& >> >> together with (dhcp-client-service) you can connect in (via port >> forwarding) and out. > > I think there's a misunderstanding. Apparently ;-) > I don't need to do in/out from host > to vm, I need a simple VM -> WORLD connection. Yes, that should work. Possibly slower than setting up a bridge though. Have you tried? > What you wrote could help with testing the git-service one last time > as this does require host<->vm connection, thanks. Nice. Greetings, Jan -- Jan Nieuwenhuizen | GNU LilyPond http://lilypond.org Freelance IT http://JoyofSource.com | Avatar® http://AvatarAcademy.nl
Re: Network with QEMU generated image (guix system vm)?
Hi, Jan Nieuwenhuizen writes: > ng0 writes: > >> I feel like this should be documented better, because I can't figure it >> out. > > I'm doing something like > > /gnu/store/cgb3rvmyddy114vzp9xk2y05vwn3ka18-run-vm.sh -net nic -net > user,hostfwd=tcp::2223-:,hostfwd=tcp::3001-:3000,hostfwd=tcp::5433-:5432& > > together with (dhcp-client-service) you can connect in (via port > forwarding) and out. I think there's a misunderstanding. I don't need to do in/out from host to vm, I need a simple VM -> WORLD connection. What you wrote could help with testing the git-service one last time as this does require host<->vm connection, thanks. > Another trick that I use and would be nice easier accessible is to have > the console output to your terminal (or emacs shell) like so > > sed -e 's,-append ",-append "console=ttyS0 ,' > /gnu/store/s5y87jg79gh3nw8lv3q3rrj1i8wafmaj-run-vm.sh > vm.sh > chmod +x vm.sh > > instead of the graphical box popup. > > HTH, > Jan > > -- > Jan Nieuwenhuizen | GNU LilyPond http://lilypond.org > Freelance IT http://JoyofSource.com | Avatar® http://AvatarAcademy.nl > -- ng0
Re: Network with QEMU generated image (guix system vm)?
ng0 writes: > I feel like this should be documented better, because I can't figure it > out. I'm doing something like /gnu/store/cgb3rvmyddy114vzp9xk2y05vwn3ka18-run-vm.sh -net nic -net user,hostfwd=tcp::2223-:,hostfwd=tcp::3001-:3000,hostfwd=tcp::5433-:5432& together with (dhcp-client-service) you can connect in (via port forwarding) and out. Another trick that I use and would be nice easier accessible is to have the console output to your terminal (or emacs shell) like so sed -e 's,-append ",-append "console=ttyS0 ,' /gnu/store/s5y87jg79gh3nw8lv3q3rrj1i8wafmaj-run-vm.sh > vm.sh chmod +x vm.sh instead of the graphical box popup. HTH, Jan -- Jan Nieuwenhuizen | GNU LilyPond http://lilypond.org Freelance IT http://JoyofSource.com | Avatar® http://AvatarAcademy.nl
Re: Network with QEMU generated image (guix system vm)?
ng0 writes: > I feel like this should be documented better, because I can't figure it > out. > > I should not waste time on figuring out how a service I need to test in > the VM can get internet access. > > Currently I can't ping, git can't clone, gnunet-service can't get its > hosts lists, etc. I just need to test one service, I don't want to spend > days on figuring out why I can get no in/out connection. > > Can someone please help me, so that we can improve configuration? ^ I meant documentation. > > > Appended are 2 versions of the testvm.scm I used in my branch of > gnunet-service. > > > -- > ng0 -- ng0
Network with QEMU generated image (guix system vm)?
I feel like this should be documented better, because I can't figure it out. I should not waste time on figuring out how a service I need to test in the VM can get internet access. Currently I can't ping, git can't clone, gnunet-service can't get its hosts lists, etc. I just need to test one service, I don't want to spend days on figuring out why I can get no in/out connection. Can someone please help me, so that we can improve configuration? Appended are 2 versions of the testvm.scm I used in my branch of gnunet-service. testvm.scm Description: Binary data testvm-new.scm Description: Binary data -- ng0