[09:29] <bulw> I changed my file browser using “Default applications for LXSession” in Lubuntu 14.04. Unfortunately, I did domething wrong as now after login I see only a blank grey screen. How can I reset this settings? I already tried restoring ~/.config, ~/.local and /usr/share/lxsession from backup and it failed to fix problem.
[09:34] <bulw> How can I reset system setting in Lubuntu? I did something wrong and I am unable to do anything after login (a gray screen with mouse, not respsnding to anything). I already tried restoring ~/.config, ~/.local and /usr/share/lxsession from backup and it failed to fix problem.
[09:57] <johnnydavey> eow lubuntu
[10:00] <bulw>  Is there some way to reset system settings, except reinstalling system?
[10:30] <bulwersator> I used lxsession-default-apps to modify my file menager on lubuntu 14.04. Now after login I have a blank grey screen, though start menu is accessible by right-clicking on it. My system is now referred to as debian, and running lxsession-default-apps is impossible as it crashes immediately. How can I reset settings changed by lxsession-default-apps?
[16:35] <xtrom> hi
[16:36] <xtrom> i was wondering about lubuntu
[16:36] <xtrom> and what is the main difference with debin
[16:36] <xtrom> debian
[16:36] <holstein> try it live.. its free to try
[16:36] <xtrom> ?
[16:37] <holstein> debian is what it is.. and ubuntu is basically a fork of debian
[16:37] <holstein> lubuntu is ubuntu
[16:37] <holstein> !lubuntu
[16:37] <xtrom> and when you say a fork
[16:37] <xtrom> it measn that less powerful ?
[16:38] <holstein> xtrom: "powerful" in most cases will be a matter of application,a nd configuration
[16:38] <holstein> xtrom: fact: lubuntu is designed, as stated, for older hardware
[16:38] <holstein> its meant to be lightweight
[16:38] <holstein> you wont find much better at that task
[16:39] <holstein> it will not make your computer any faster or better
[16:39] <xtrom> yes agree i jsut did a virtual machine
[16:39] <xtrom> and is great
[16:39] <holstein> the "powerful" ness of your hardware will come from it
[16:39] <holstein> the actual hardware
[16:39] <holstein> linux is linux.. and lubuntu is not magic
[16:39] <xtrom> i was wondering about using it (lubuntu) as a server ... since is so light
[16:39] <xtrom> ?
[16:39] <holstein> !server
[16:39] <holstein> use it for what you want to use it for
[16:40] <holstein> mostly, servers dont have, or need X, so, there is typically no desktop environment
[16:40] <holstein> but, lxde is a light option, if one wanted/needed one.. or wanted to run a server and a desktop on the same machine
[16:42] <genii> When a server absolutely has to have some desktop for whatever reason, I usually just put twm and an xinitrc of like twm & xterm &
[16:43] <holstein> yeah, there are lighter than lxde, for sure
[16:43] <xtrom> twm , xinitric ? i 've never hear of those
[16:43] <holstein> depends on the goal
[16:43] <xtrom> let me google them up
[16:44] <genii> xtrom: twm is very very minimal. xinitrx is a file in home dir that tells what to do when X starts
[16:44] <genii> xinitrc, rather
[16:47] <xtrom> im an electronic engineer , i am leaving windows behind , i started 5 month ago moving to linux , i tried Scientific linux for ahile,.. but i found it very diffciult,.. i tried then ubuntu server but i found it two cluttered and somewhat heavy
[16:47] <wxl> too cluttered? and heavy? how do you quantify that?
[16:47] <genii> What?
[16:47] <xtrom> so i started with lubuntu ,.. i like the lightness
[16:48] <holstein> if you want a desktop machine that you want to run server applications on, lubuntu/lxde is not a bad option
[16:48] <wxl> i mean the fact of the matter is, lubuntu *IS* ubuntu
[16:48] <wxl> they have the same core
[16:48] <wxl> all the packages come from the same place
[16:48] <genii> All *buntu underneath, yep
[16:48] <xtrom> i am so glad to hear these
[16:48] <holstein> ubuntu server has no UI
[16:48] <annabel_> xtrom: considering installing OSX?
[16:48] <holstein> i think you mean, you tried main ubuntu.. as a server platform
[16:48] <annabel_> *consiered
[16:48] <xtrom> osx ?
[16:49] <xtrom> let me google that
[16:49] <annabel_> Apple OSX
[16:49] <xtrom> oh
[16:49] <wxl> holstein: THAT would make sense
[16:49] <xtrom> no
[16:49] <xtrom> i need open source
[16:49] <wxl> yeah, if you use standard ubuntu it *IS* cluttered and heavy
[16:49] <holstein> appleOSX is not something i would run as a server, unless it were the server version
[16:49] <wxl> but ubuntu server is pretty stripped down outside of the additional server packages
[16:50] <annabel_> i run debian on both my servers
[16:50] <annabel_> you can throw xlde / xfce on debian
[16:51] <holstein> sure
[16:51] <holstein> you can run the *same* services on debian as ubuntu
[16:51] <xtrom> xlde on debian would be as fast as lubuntu ?
[16:51] <wxl> xtrom: it would be good to explain what it is you actually want to accomplish, what your hardware is like, and further qualify your ubuntu experience. then maybe we can help guide you. even still, there is no *ONE* answer. this is totally subjective. the best way to figure it out is to get a live cd and boot it. then you can make a decision.
[16:51] <annabel_> Faster i imagine
[16:51] <holstein> xtrom: *nothing* is going to make your machine faster
[16:51] <holstein> it is what it is
[16:51] <xtrom> ok
[16:52] <holstein> software can make "better" use of resources
[16:52] <wxl> i wouldn't say debian is faster than anythng in ubuntu
[16:52] <holstein> lxde is lxde.. here, or on debian, or *whatever*
[16:52] <xtrom> im a C programmer and embedde system
[16:52] <wxl> debian is upstream ubuntu
[16:52] <xtrom> currently im started with Erlang
[16:52] <wxl> in that sense, they're very closely tied
[16:52] <xtrom> and im gettin involved in real time application
[16:52] <holstein> typically, the "best" option is the one that is best known to you
[16:52] <holstein> i say, choose one, and get comfortable with it
[16:52] <xtrom> so my bos told to go for linux experience
[16:53] <holstein> ubuntu is debian based, so, anything you do here, in lubuntu/ubuntu will and can apply to debian
[16:53] <wxl> if you want to be REALLY fast, then you build your own linux from scratch using only what you want
[16:53] <annabel_> holstein's advice is good advice
[16:53] <wxl> but if you find scientific difficult, that will be difficult
[16:53] <genii> !LFS
[16:53] <wxl> lubuntu is a wonderful blend of simplicity and easy of use
[16:54] <holstein> if you want to learn linux, there are many courses on it https://linuxacademy.com/
[16:54] <wxl> genii: oh wow, that's cool. back in my days of building linux from scratch they didn't make it so easy XD
[16:54] <holstein> otherwise, just grab an iso, and start reading, and learning
[16:54] <wxl> xtrom: there are real time kernels available
[16:55] <genii> wxl: I usually recommend it to people to do at least one time in their life if they want to learn about how linux distributions are made, etc
[16:57] <holstein> anything like linux from scratch will also be applicable
[16:57] <holstein> the deal is, just being open to relearning
[16:57] <holstein> and not expecting linux to be windows
[16:58] <holstein> most folks slowly learn to use windows over years and years of time.. becoming advanced users quite knowlegable with the system. then, they drop linux on a box, or in VM, and expect to have that same level of mastery in a few minutes time
[16:58] <wxl> xtrom: any other questions?
[16:58] <holstein> keeping in mind that its not a goal of linux to emulate windows, and being open to re-learning how things are done will help
[16:59] <xtrom> i pick lubuntu becasue its simpleness ,.. so a can learn to swim in linux,.. but actually i need to go for RTOS ,.. i saw some linux RTOS  in wikipedia , and i was reading about xenomai framework that supposedly converts any linux in a rtos ..
[16:59] <wxl> xtrom: as i said, there is a real time kernel available
[16:59] <holstein> i dont think you do
[17:00] <holstein> but, only you can sort out your specific needs.. and are totally free and welcome to do so
[17:00] <wxl> holstein: it's for embedded programming. think drones.
[17:00] <wxl> as a general rule, controlling those motors requires real time
[17:00] <holstein> *great*!
[17:00] <wxl> although i know of at least one project that got around it somehow
[17:00] <holstein> but, we know you dont need a special version of linux for that
[17:01] <holstein> unless one does.. which, one can
[17:01] <wxl> right
[17:01] <holstein> there are *many* RT kernels
[17:01] <wxl> like i said there's the real time kernels :)
[17:01] <xtrom> wxl : which real time kernel you suggest to easy start (easy installation , lost of help and documentations ,.. etc )
[17:01] <holstein> i say, ignore that, and just get started learning literally anything about the core
[17:01] <wxl> !rt | xtrom
[17:01] <wxl> there ya go
[17:01] <holstein> i say, use the stock server kernel
[17:01] <holstein> anything there will meet most of anyones needs
[17:01] <holstein> then, if you find you need more, you can learn to implement it
[17:02] <wxl> holstein: except for certain embedded programming needs. he's definitely got a unique use case.
[17:02] <holstein> i am in no way disagreeing
[17:02] <holstein> im just saying, there is *no* need to do it now
[17:02] <holstein> no need to learn how to implement a special kernel *before* learning the os.. for a need that is not happening yet
[17:02] <wxl> certainly not to learn linux
[17:03] <holstein> i would suggest installing stock ubuntu server, or another stock linux distro.. stay on the stock path of that distro for support, and documentation
[17:03] <wxl> and frankly i wouldn't suggest server from what i'm hearing
[17:03] <wxl> i'd say start with lubuntu
[17:03] <wxl> you'll probably want that gui
[17:03] <holstein> i think thats more like windows server
[17:04] <holstein> a GUI..
[17:04] <wxl> well i don't even think he was using server
[17:04] <wxl> scientific linux is gui based
[17:04] <wxl> and he found it difficult
[17:04] <holstein> im sure im mis-reading the scroll back
[17:05] <diffis> Scientific linux... What does it actually mean in this case?
[17:05] <wxl> diffis: it's a red hat derivative created by cern
[17:05] <wxl> the name is kind of a misnomer
[17:06] <wxl> sorry fermi not cern
[17:06] <wxl> cern did help
[17:06] <wxl> but now they're on centos proper
[17:06] <diffis> wxl: Ah, OK. I was a bit confused, because there are a lot of ways you could say 'scientific linux'. :D
[17:07] <wxl> https://en.wikipedia.org/wiki/Scientific_Linux
[17:07] <diffis> For example, I have just Lubuntu desktop what I use quite heavy computing purposes.
[17:07] <wxl> yep i can relate to that
[17:07] <diffis> And I'm planning to upgrade my computer to be able to do much more.
[17:08] <wxl> you can find out the why and what here https://www.scientificlinux.org/about/why-make-scientific-linux/
[17:08] <xtrom> i chose in the pas SL6. becasue since i know they (cern,fermi, etc) use it i thought it (SL) might have easy step for RT apps development
[17:09] <xtrom> thats what i encountered difficult not the SL it self
[17:09] <diffis> Hmm... I think I've taken a look there at some point but then I decided to stay in lubuntu or some other light flavour (not necessarily ubuntu's).
[17:09] <xtrom> that wasnt the case
[17:14] <xtrom> wxl : waht do you think about xenomai..
[17:14] <xtrom> ?
[17:16] <xtrom> wxl : rt in wikipedia says "inactive" http://en.wikipedia.org/wiki/List_of_real-time_operating_systems
[17:16] <holstein> if you need what its implementing, go for it
[17:16] <holstein> you wont waste time, again, learning a gerneral linux operating system
[17:16] <holstein> linux from scratch.. etc
[17:17] <holstein> if you have a special application or need, you'll just need to do what that requires
[17:17] <holstein> you may need to have your "boss" get you sample hardware, and try the software on the hardware, and test it
[17:18] <holstein> or, just go with one of the services that will do it all for you, or sell you an entire linux solution
[17:25] <wxl> xtrom: your resource for all things ubuntu is the ubuntu wiki, not wikipedia
[17:25] <wxl> !rt | xtrom
[17:25] <xtrom> we going to be using ARM cores (for hardware) but we ( my boss and i ) suggested that i would be better if i learn linux for comons MPU , and then pass to embedded server systems (Real time)
[17:25] <xtrom> so so far lubuntu is pretty fine
[17:25] <holstein> right
[17:25] <xtrom> im learing alot with it
[17:25] <xtrom> thank you holstein for your suggestions
[17:25] <xtrom> i think you are tight
[17:26] <xtrom> right*
[17:26] <xtrom> :)
[17:26] <wxl> xtrom: the better info is here https://help.ubuntu.com/community/UbuntuStudio/RealTimeKernel
[17:27] <holstein> though, our kernel was not designed for that
[17:27] <holstein> and, is not in the default repos any longer
[17:27] <wxl> basically you install a ppa (add a repo), and then install the package you want
[17:27] <holstein> the lowlatency is..
[17:27] <holstein> i say, dont worry with the kernel, til it becomes a problem..
[17:28] <holstein> if its already a problem, then start testing kernels
[17:28] <holstein> the kxstudio ppa has realtime kernels
[17:28] <holstein> but, those kernels are more intended for audio production work
[17:29] <holstein> again, no software makes your hardware any "better".. its just a way to help configure it to make better, or more appropriate use of resources to fit the need
[17:30] <wxl> tl;dr xtrom install lubuntu and get back to us based on what else you need
[17:36] <xtrom> excellent!
[17:36] <xtrom> thank you , you all are awesome,.. nice community !
[19:25] <jirido> holstein: Hi. Hope you are well and life is smoth with you. I got a ubuntu quis but you know how it is in the channel so i ask you cause i know you know much.
[19:26] <jirido> When using sshfs to mount a remote / as a remote nonadmin user on the server but with sudo rights, (it's ubuntu so i cant do it as root and dont want to) is there a way to get a password promt to pop up asking for my remote users password(sudo) when i try to save an root owned file i have modified in a local editor or if i want to upload a file as root to a root owned directory?
[19:26] <jirido> and now im talking open files in leafpad via pcmanfm
[19:31] <ianorlin> jirido you are running the pcmanfm on your local machine right
[19:32] <jirido> yes
[19:32] <ianorlin> jirido, I am not sure how to do that
[19:32] <jirido> ianorlin: sadly
[19:32] <jirido> It would be so neat
[19:32] <ianorlin> but you could sftp to the users home and then move it with sudo with ssh if you can figure out the mv command
[19:33] <ianorlin> or an admin can
[19:34] <jirido> I have sudo and so on and can edit it in nano or vim but i prefere to look for files in filemanager and edit them in sublime or leafpad
[19:35] <ianorlin> my idea is to save locally copy to your home folder in server and then ssh to sever and cp it to where you want to
[19:35] <ianorlin> if this is a config file or something having a backup is nice
[19:36] <jirido> But when saving anything outside my server users homefolder it denyes me to save and then it would be so neat to get a popup asking for my pasword(sudo)
[19:37] <ianorlin> yeah because your user doesn't have write permission there
[19:37] <jirido> yes but it is hmm
[19:38] <jirido> i would like to solve it.. I do not know if i could do it with ldap eventually but it seames like yet an other thing to learn and setup that is cind of big and complicated
[19:39] <jirido> :)