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is there any arm machine that I could use as an ltsp client?
beagleboard is one possible way. probably something better out now
openrd and friend?
johnny: have any more info on that?
obviously, one could boot it into some kind of thicker client
is that what you mean?
or do you mean netbooting that thing?
using a pxe-like mechanism?
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Any ideas for an easy way to create swap partitions on ltsp clients, if they have a small disk with windows on it? (so resize ntfs/fat32 partition + create swap partition will be needed).
E.g. I thought about adding a SCREEN_07=gparted screen script, but that won't work well with 64MB clients.
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ssh to them
use fdisk and mkswap
Appiah: well... it'd be hard for teachers to use ntfsresize progs and then parted. fdisk won't do, it doesn't resize partitions.
I wonder if the debian install cd or the ubuntu alternate cd can be used for that - i.e. just for resize + partitioning.
What about the Parted LiveCD?
Which one is that? The gparted live cd? That won't work with 64 RAM... or is there a parted live cd as well?
Probably you could boot without X, console only with it.
The parted console binary doesn't support ntfs
It suggests to use ntfsprogs instead, which is hard for a person with no technical expertise...
Oh, doesn't it?
I think the Gparted LiveCD might work with 64MB RAM.
alkisg: maybe also on the hiren boot CD there is a tool which could do it.
I think the hiren's boot cd isn't freeware (it contains pirated software) so I couldn't really propose it to teachers. I'm still looking for the gparted live cd requirements, but I'm afraid it won't work with 64mb ram
I tried to install gparted to the chroot and run it instead of ldm, and it did run, but I don't think the ram will suffice for a resize operation
I can't find it's requirements, either, but I think it loads Gparted without a window manager, so that it might work with 64MB. Not sure about the resize operation requirements, though.
I think ltsp with nbd swap will have a better chance of running gparted than the live cd (which has no swap)... I'll try to see if it gets through with a small resize operation... :-/
Mmmhhh... what about Tini Core linux? I'm going to check if it has Gparted as a package.
Won't it have the same ram problems though? I don't think there's any recent distro light enough to properly run gparted with a gui...
Maybe, although TCL is only 10MB
It loads itself into RAM, though.
I'm installing Gparted into it to see how much RAM it needs.
Maybe I say something with no sense but, wouldn't it work if you run Gparted as a local app booting LTSP?
NeonLichT: what I did was run gparted _instead_ of ldm
That is like a localapp, but saving some memory, as ldm and ldmgtkgreeter do not need to run
...and no window manager either
I also had nbd_swap enabled, giving some network swapping to the client for the resize operation
I see, that sounds realy nice :)
I think that's as low (memory wise) as it can get
...but it still seemed too much to me. I didn't try the actual resize, but gparted was really slow.
Probably, yes. Unless you go console only.
Right, but I can't find a console tool that supports both fat + ntfs
Maybe some installer, either the debian one or the ubuntu alternate cd one
Isn't placing the hard disk into another box to do the resize operation an option at all?
No, not really, it's for teachers which have no technical expertise
If I can't find some linux-based way to propose to them, I'll just tell them to use an acronis demo or something like that
Running out of ideas, you have a pretty tight scenario to move on XDD
Heh :) Thanks for your thoughts though
Uh... the debian business card cd seemed to work fine, but then refused to go on and apply the changes because I had not set a root file system :-/
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Did you try again, alkisg?
Nope, I didn't finish all of the tests yet
I want to try the gparted + network swap first, to see if I can pull it off with 64mb ram
OK, let me know when you find out, I'm xurious. :)
ok - if it works I'll even push the screen script upstream..
That'd be great.
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Heh, it worked fine with a fat chroot, but it didn't work with a thin chroot!
I'm suspecting that something (e.g. compcache) is making the thin chroots heavier than the fat chroots...
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Hello, I have problem with firefox/thunderbird on LTSP: firefox is running in the user's chroot and thunderbird outside the chroot. When a link in thunderbird is clicked - firefox tries to open: "www.%u.com". any idea on how to fix that?
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if I want to print from localapps firefox do I need to install cups in my chroot, or is there a different way
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is there any cheap arm hardware that can be used as an thin client with ltsp?
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as in: tftp u-boot without embedded flash
http://www.globalscaletechnologies.com/p-33-guruplug-display.aspx looks really cool
markvandenborre, you should be able to make a guruplug work in debian
or wait for ubuntu 10.10 that will have support for the beagle XM
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|10:25||* markvandenborre is off (still grateful to jammcq who was very helpful in the early days when I first experimented with LTSP and free software in general!)|
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NeonLichT: I've tested it, it runs OK, and I've written a page about "how to run gparted locally on a thin client by running it as a screen script": https://help.ubuntu.com/community/UbuntuLTSP/GParted
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Great, alkisg, thanks for sahring it! :-)
, is it only for Ubuntu?
NeonLichT: no, I don't think so, it should apply to all distros except for the installation commands (chroot apt-get install etc)
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alkisg, i wouldnt add the bind mounting of the apt cache, that will become messy with cross arch
oops, linode was down
I went to Jorge's wedding last night
he's all married up now
ogra_cmpc, why would it be messy? afaik you can download any arch package into the cache
Much better than just leaving the cache on the chroot and the compressed nbd image...
i'm not sure they will get cleaned up
How will they get cleaned up on the chroot?
On the server, an apt-get autoclean cleans the obsolete packages, and apt-get clean cleans all of them
Independent of their arch
(btw it'd be better if we made an "ltsp-enter-chroot" command which would contain the best practices, whatever those are...)
i thought vagrant wrote ltsp-chroot years ago
Ah, didn't know that one. Nice, we could extend it to mount the cache, proc, dev/pts and whatever else is needed
...and also put it to /usr/sbin
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sure, talk to vagrant
Will do, thanks
alkisg: hi! can I ask you one little question about exporting DBUS_* to the chroot?
RicardoPerez: erm, sure, but I'm not sure that I'll be able to answer it
alkisg: let's try it, if you want
thanks! in order to get a graphical app to run into the chroot, I need to export DISPLAY, but I think I need to export DBUS_SESSION_BUS_ADDRESS, too
because I get some error messages related with dbus
the question is that I don't know what value assign to the DBUS_* env var
the error message is "process 4204: D-Bus library appears to be incorrectly set up; failed to read machine uuid: Failed to open "/var/lib/dbus/machine-id"" ...
Hmmm... let's start with `echo $DBUS_SESSION_BUS_ADDRESS`, and if it doesn't work then let's see if it needs some bind-mounting in order to find it..
Which program are you trying to run?
I'm trying to run gnome-language-selector
(also, note what I told you last time, that this isn't recommented - at least I don't know how to properly run X/dbus chrooted programs)
alkisg, yes, you're right ;)
well, "echo $DBUS_SESSION_BUS_ADDRESS" is empty, no result
(inside the chroot, i mean)
outside the chroot i get a unix:abstract=/tmp/dbus-HTSAod9DIH,guid=2ae0ee663b0d9aa6268efada4c03e6d5
Try this command: sudo LTSP_HANDLE_DAEMONS=false DISPLAY=$DISPLAY DBUS_SESSION_BUS_ADDRESS=$DBUS_SESSION_BUS_ADDRESS chroot /opt/ltsp/i386
Then just run gnome-language-selector (you're in the chroot)
mmmm... unfortunately, i get the same error message:
besides that, the tool is shown and I can click buttons, but after trying to download the langpacks, the tool stops
try this before it: sudo mount --bind /var/lib/dbus /opt/ltsp/i386/var/lib/dbus
But again, warning - warning - warning - it's not my fault if it breaks everything :)
alkisg, don't worry! i'm only testing :)
well, it seems to be a good improvement!
unfortunately, now i got a gconf fault
GConf Error: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information. (Details - 1: Failed to get connection to session: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the rep
ly timeout expired, or the network connection was broken.)
it seems to be a hard thing :/
Yeah, and even if it works, it might modify some stuff on the server instead of the chroot.
Why don't you just apt-get install the necessary packages for language support?
don't worry about that, then... i'll try to do it by hand
yes, you're right, i'll do it manually, changing /etc/environment with LANG and LANGUAGE vars and installing langpacks by hand
it's the best approach
thank you very much after all, alkisg!
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is there an easy way to install an LTSP server with thin clients but with SOME apps running locally like in fat clients?
Sure, that's called localapps. See the wiki, there are some pages there.
great, i'll look at then, thanks again!
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Hello. Please, read this question: https://lists.ubuntu.com/archives/edubuntu-users/2010-May/006269.html
How to disable infobox on boot process with ltsp-cluster?
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