Ask Ubuntu General Room

Seth

12:12 AM

What the actual heck Android 8.1

I'm telling you, Android >=8 is pretty much just awful changes.

Ask Ubuntu Meta

0

Q: How do I respond to my question being marked as a duplicate when it clearly isn't?

I have a question about my Ask Ubuntu post: apt-get upgrade fails I'm posting about this problem because my question was marked as a duplicate when it clearly isn't a duplicate of the linked question. The problem I had was not solved by the answer in the question linked as a duplicate of my ...

TheWanderer

12:27 AM

@Seth space for the carrier name I bet

Kaz Wolfe

12:38 AM

@Seth curved screen thingy i think

Ubuntu Questions on U&L

0

Q: Login Loop After Changing Shell to a Personally Developed Shell

I am working on a simple shell, in C, as a personal project. I'm running Ubuntu 17.0, and it is updated. After moving my compiled shell into /bin, adding it to /etc/shells, and using chsh, I restart my machine. However, when I log back in the screen goes black, and I am taken back to the login sc...

linux shell ubuntu c

TheWanderer

12:50 AM

hey @KazWolfe

am I allowed to add a condition to a chosen OSS license?

Like, don't share any builds you create on XDA?

Kaz Wolfe

1:14 AM

er

you can fork a license

but that depends on the license itself

and you need to make sure the license doesnt conflict itself

TheWanderer

can I say "this repo is licensed under MIT, with the exception that you can't distribute any builds on XDA without permission"?

but, you know, cleaner

Chai T. Rex

Might there be copyright issues (licenses might be copyrighted automatically like software is) requiring permission to make derivative works?

TheWanderer

idk

that's why I ask

Seth

1:32 AM

@TheWanderer You can, but this is called a "crayon license" and frowned upon.

TheWanderer

huh

so what can I do?

or should I do anything?

Seth

I know a great place to ask.

I don't know the answer. Link me to your Q please :)

TheWanderer

kk

0

Q: How can I add a condition to a license?

I'm working on an Android app that I plan on uploading to the Play Store as a paid listing. I also want to make it open source. I'm perfectly fine with people building it for personal use, but I want to try to prevent re-distribution, at least on the Play Store and XDA. I was thinking about usin...

licensing

Aaron Hall

I'm trying to print a pdf and there are lots of characters not rendering (I get those unicode style boxes instead) - is the problem likely missing fonts and if so, is there a apt install hammer I can swing at the problem? The pdf's properties says the fonts are all standard or embedded, but I'm not sure I believe it...

Seth

1:47 AM

@AaronHall yeah that'd most likely be missing fonts. PDFs make it tricky to tell for sure though. You'd need to know what font package to install. Any idea what the boxes are supposed to be?

Do they render in the PDF but not when printed, or not at all?

IanC

@NathanOsman what License do you use on websites? Also, have you ever used Jekyll + Github pages?

Aaron Hall

@Seth I was hoping to take a crack at it before wasting paper and ink.

Maybe it will print ok?

Seth

@AaronHall So they don't render at all?

Aaron Hall

I'll have to try printing, haven't yet...

Seth

@AaronHall Don't jump there if they don't render

But it's kinda hard to fix if you have no idea what the symbols are supposed to be.

I don't suppose it's a public PDF?

Aaron Hall

1:58 AM

NY state tax forms...

@Seth Federal ones ~~print~~ on screen look ok...

Kaz Wolfe

@TheWanderer "No redistribution" kinda goes against the idea of "free"

TheWanderer

hrmmm

well it's not no redist at all

I just don't want someone else making a thread on XDA or an app on Play

Kaz Wolfe

Well, yes, it is. You are allowed to build a copy for your own use, but may not republish the app or source code (or derivatives) to alternate areas.

Ubuntu Questions on U&L

0

Q: Should it be easier and safer to release_upgrade a Debian than Ubuntu?

I think of migrating my server environment webapps from Ubuntu 16.04 server to Debian stable server. The main reason is to promise even more stability for the long term, easier release_upgrades (really?), and an overall more minimal system. Should it be easier and safer to release_upgrade a Deb...

debian ubuntu upgrade migration dist-upgrade

TheWanderer

you can put a copy up on Aptoide if you want

or you can distribute something in Telegram, Slack, whatever

Kaz Wolfe

2:00 AM

.... this license seems needlessly complicated.

and sounds like an X/Y problem. What are you trying to do, exactly?

Seth

@AaronHall huh?

TheWanderer

I'm making a paid app, but I want to release the source

I just don't want someone re-releasing the app for free on XDA

Aaron Hall

@Seth you asked if it's a public pdf, I was trying to answer that question.

Kaz Wolfe

So you want to make an app that is paid, but can not be redistributed on a store.

TheWanderer

no

Seth

2:02 AM

Right, it's your NY tax forms, but what do you mean "Federal ones on screen look ok"?

TheWanderer

just XDA and Play

there are quite a few other stores

and honestly, I can't do much if someone does put it on Play

Seth

Do you have ttf-mscorefonts-installer installed? That would be my first guess, knowing it's gov. stuff that was probably made on a Windows machine. @AaronHall

TheWanderer

but I can take something on XDA down

Kaz Wolfe

(that would be an abuse of power imo)

TheWanderer

not if I specifically request that no one distribute on XDA, no?

Kaz Wolfe

2:03 AM

You're going to want a copyleft license, but this will be... interesting.

Well, what about derivatives of your app?

TheWanderer

if they're substantial, I guess

Kaz Wolfe

Under even the GPL you sort of have a claim to copyright if someone just directly redistributes your app, but modifications will not really be covered.

Seth

I didna know you were an XDA moderator Zach

TheWanderer

what sort of modifications?

Nathan Osman

@IanC MIT usually.

TheWanderer

2:05 AM

@Seth yae laddy

Nathan Osman

And yes, I've used GitHub Pages.

TheWanderer

like, if someone just changes the app name, does that count as a modification?

Seth

@TheWanderer Cool! for how long?

Kaz Wolfe

Not really, I don't think

TheWanderer

October I think?

Kaz Wolfe

2:05 AM

But i am not a lawyer so I wouldn't be the right person to say.

TheWanderer

@KazWolfe so they have to be substantial?

Seth

kewl

TheWanderer

ye

Kaz Wolfe

I believe "derivative work" means substantial changes, yes. Enough so that it's no longer the original work pretty much

TheWanderer

kewl

wait, GPL requires derivatives to be OSS too right?

Apache is what lets you close it

Kaz Wolfe

2:06 AM

GPL requires derivatives to be GPL

TheWanderer

perfect it seems

Seth

@KazWolfe or freer, no?

Kaz Wolfe

@Seth I thought GPL copylefting must be GPL

it's been a while though. I usually release things either under very restrictive licenses or the MIT license.

Seth

@KazWolfe Pretty sure it's compatible with MIT. Which is weeeird, but something I'm mostly sure about. Lemme google.

Kaz Wolfe

I mean, @TheWanderer, Conversations is a paid app on the Play Store but is open-source and free to redistribute.

In fact, you can even get it for free from F-Droid or similar.

IanC

2:08 AM

@NathanOsman I see, I was reading about Jekyll and seemed like a good way of building a personal portifolio + blog (mostly because of the facility of using GH pages, I wouldn't mind using server side scripts and SQL for managing content), I'm testing around here, while working on a layout

Nathan Osman

MIT is basically public domain with limitations of liability.

:P

Seth

@KazWolfe wait really? good to know

Kaz Wolfe

I haven't seen Conversations republished on the Play store just yet.

Nathan Osman

@IanC my blog is Jekyll powered: blog.quickmediasolutions.com

TheWanderer

oh cool

and it's GPLv3

so maybe that is the way to go?

IanC

2:09 AM

I might sound a little ignorant now, but MIT still protects you from plagiarism? Like, if someone copies your website layout completely?

Kaz Wolfe

GPLv3 doesn't directly protect you from straight redistribution though i don't think

IanC

@NathanOsman oh, I hadn't seem it before!

looks nice!

Nathan Osman

Thanks!

TheWanderer

@KazWolfe weird

IanC

you built the layout yourself using HTML + the Jekyll YAML commands?

Nathan Osman

2:12 AM

Well, I actually used a theme someone else made.

Kaz Wolfe

> The GPL says that anyone who receives a copy from you has the right to redistribute copies, modified or not.

Nathan Osman

But it runs in a Docker container with Jekyll installed.

Seth

looks like you're right Kaz.

Kaz Wolfe

The GPL is very weird and I think it blocks commercial redistribution without changes, but I don't think it'll directly stop anyone from posting things to XDA for free.

IanC

@NathanOsman it seems like the focus of Jekyll actually, from what I've it's much more intuitive to use a built layout than creating your own (mostly because you'd have to style the whole markdown)

TheWanderer

2:14 AM

feh

Kaz Wolfe

Welcome to licenses

Nathan Osman

@IanC It's certainly easier to use something rather than make something.

@KazWolfe It gets better. I think the LGPL lets you redistribute commercially provided you allow relinking by distributing object files.

TheWanderer

wut

Nathan Osman

And I don't think any of them deal with obfuscation, do they?

TheWanderer

I should just make my own license lol

Nathan Osman

2:16 AM

Remember the unicorn license? :P

TheWanderer

go to law school, get a degree, just to write a license

chaskes

gpl does not block commercial redistribution but you have to provide the source code to all, allow them to redistribute commercially, and give changes back to the originator. This is why commercial usually goes for mit instead.

TheWanderer

@NathanOsman no?

Nathan Osman

web.archive.org/web/20120224094338/quickmediasolutions.com/…

It isn't up anymore.

TheWanderer

lol

isn't that a crayon license or whatever though? ;p

Nathan Osman

2:18 AM

I doubt it's OSI compliant :P

TheWanderer

wat

IanC

so, I'm still a bit confused, MIT kind of allows straight copying the website layout then?

Aaron Hall

@Seth I do have ttf-mscorefonts-installer installed. I just tried printing a page, and it came out blank. Maybe out of ink? Maybe a problem with just yesterday switching to xubuntu-desktop?

chaskes

as long as they follow the other terms of the license (not claiming authorship, leaving copyright headers intact, etc), I think they could use the js/css, etc to recreate the look and feel of your website

IanC

cool, I think that's good enough :)

Aaron Hall

2:26 AM

would switching to xubuntu-desktop cause issues with printing?

Kaz Wolfe

licenses are very fun. that's all

chaskes

@AaronHall What version?

Seth

2:41 AM

@AaronHall Unlikely. An odd problem though. I've never had a problem with a PDF loading characters.

Aaron Hall

2:58 AM

Well I went back to my source, got the printable copy, and printed it from there (I downloaded the PDF last time) lesson learnt, maybe - print to pdf next time I want to save a copy, right? (I'll be trying it...)

TheWanderer

3:20 AM

this is interesting youtube.com/watch?v=4SKT1kRbb2c

Ubuntu Questions on U&L

0

Q: How to split a file to multiple files with multiple threads?

So I have a 100GB text files And I want to split it into 10000 files. I used to do such tasks with something like: split -l <number of lines> -d --additional-suffix=.txt bigfile small_files_prefix But I tried to do that with this one and I monitored my system and realized that it wasn't using ...

ubuntu memory cpu ram multiprocessor

Aaron Hall

4:38 AM

@TheWanderer ah, convergence. I am looking forward to it. That specific configuration looks particularly interesting - docking the phone as a trackpad on a laptop-style device? It looks so cool... I really want one.

And btw I did try to print the doc to PDF and to PS, both gave me the same result as before...

Aaron Hall

5:00 AM

Now I just need xfce to detect when I've switched my laptop to tablet mode...

Seth

@AaronHall Depending on what hardware you're working with, look into a udev script or a dbus loop.

Aaron Hall

@Seth yeah... gotta link?

Know what? Xubuntu is really awesome!

Xubuntu hype!

Nathan Osman

8:00 AM

AAARRRRGGGGHHHH systemd AAAAAARRRRGGGHHHH

6

Why can't you do something as simple as start PulseAudio at boot?

Nathan Osman

8:12 AM

Linux - you can either have a working system or you can have systemd.

Byte Commander

8:43 AM

star-bait?

(no, I can resist the temptation)

Arcticooling

9:01 AM

What are the 1-2 main advantages you might think yum has over apt or otherwise?

Nathan Osman

@ByteCommander plz like and subscribe

:P

Byte Commander

rel=nofollow

Arcticooling

9:41 AM

Will you share an advice to ease the pain?

https://unix.stackexchange.com/questions/415987/contiuniosly-upgrade-everything-including-a-distro-release-in-some-debian-dist

terdon

10:00 AM

@Arcticooling It sounds like your question is "How can I have a full-time sysadmin administer my system for me".

Arcticooling

I'm a bit sad to read it sounds to you this way, this was really not my intention. I just look for a solution that will be less time consuming to maintain, emphasizing continuous integration.

dessert

10:14 AM

@Arcticooling Isn't “use a rolling distribution” essentially the answer to your question?

Oli

Hell no.

dessert

@Oli Just read your answer, apparently I didn't understand the question.

@Arcticooling Ignore that advice. ;P

Oli

I mean, it's the answer to "how to I get all the latest software", it's not the answer to "how do I run a server"

Ubuntu Questions on U&L

0

Q: Xstartup file for Gnome 3 session on Ubuntu 16.04

Is it possible to have a TurboVNC session, or indeed and vnc server session, to a Ubuntu 16.04 system display a desktop the same as what one gets when logging in locally, with the Activities bar and so on? I can't find examples of this. My effort so far produced the following xstartup file, but a...

ubuntu gnome3 vnc

Benny

@p

@ParanoidPanda Hey, where are you dude

terdon

10:38 AM

@Arcticooling Well, there's a reason sysadmin is a full time position :)

Ubuntu Questions on U&L

0

Q: "VFS: Can't find ext4 filesystem" on ZFS disk

I am getting many of these messages on one of my systems: [ 348.515157] EXT4-fs (vda9): VFS: Can't find ext4 filesystem [ 348.517587] EXT4-fs (vda9): VFS: Can't find ext4 filesystem [ 348.519944] EXT4-fs (vda9): VFS: Can't find ext4 filesystem [ 348.522487] squashfs: SQUASHFS error: Can't fi...

ubuntu ext4 zfs proxmox

Rinzwind

@terdon not where I work >:=D GCE took most of our admin tasks.

@Arcticooling what you would like is the cloud. Google Cloud Engine, Amazon CE or Azure (MS but not as good as the 1st 2) you have a system disk and a data/user disk. You set up an instance, attach the user disk; ready to go. With an update you make a 2nd system disk. Attach the user disk and you have an updated system.

Arcticooling

@terdon of course, I just hope to automate even more, maybe learning rsync at the time would help me more.

Rinzwind

My admin tasks span 4 hours a month

And system updates should be done when convenient. Not mandatory.

terdon

@Rinzwind Shhh, don't voice your heretical opinions in here, you know how this crowd feels about updating ;)

Arcticooling

10:52 AM

@Rinzwind, these services like AWS, Azure, and Google Cloud Engine might be expansive for me. I now read in AWS and GCE and their pricing model doesn't seem intuitive as in DigitalOcean, I don't work now and afraid to pay more than 20$ without noting in AWS or GCE. I basically have 2 WordPress sites to host (small sites, the theme is 15kb and there are only 5 plugins), yet I cannot give more than 10$ a month at this point, maybe 15$ in Azure...

All I desire is to cut my scripts in at least 50% by external automation (or not to upgrade at all), I think they are two big for my needs, hence fragile.

terdon

@Arcticooling you can either upgrade everything in an automatic way or upgrade everything in a safe way. Never both.

2

Rinzwind

@Arcticooling you can have a volatile GCE for zero cost. Those can disappear if a server at the center fails but you can fix that with good backups

Arcticooling

@terdon I agree with that rule.

terdon

@Arcticooling You might want to edit your question then. I mean, the very first line is:

> How to continuously upgrade everything (including some Debian distro release) in a distro in a safe way?

Arcticooling

@terdon this rule might have exceptions. Given my system is very minimal, I'm not sure it won't be an exception. As I understand, unattended-upgrades, as I've configured it, upgrades basically everything in Debian 9.3, and the only thing I have yet to automize is the release_upgrade itself. Maybe I should change it from "safe" to "safest".

terdon

11:15 AM

@Arcticooling No. This is a pretty fundamental point. You cannot use the word safe or any of its derivatives along with "distribution upgrade" and "automatic". Get that idea right out of your head :|

Not when you're talking about production machines hosting services.

Arcticooling

11:43 AM

@terdon I have internalized the principle. Given what you write it seems I have no choice but to cut all the LEMP and webapps out of the droplet with release_version X to a droplet with a release_version Y via rsync or Docker.

This will indeed be the safest.

terdon

Only if they work with release version Y. They may well not do so.

Arcticooling

Yes, I have a hard time to determine how approximately likely it is but I'm fully aware it's possible...

Thank you!

terdon

You can't really know how likely it is. I'm afraid this isn't predictable. But that's why this sort of thing is always a risk :)

TheWanderer

there goes SO Russia again, flagging things

terdon

Ignore them. Leave them to a native speaker.

TheWanderer

12:17 PM

Ubuntu Questions on U&L

12:39 PM

0

Q: Cannot establish TFPT server on Ubuntu

To create ARM Versatile Express Emulation On Qemu With NFS as Rootfs I followed this tutorial which led me to this this tutorial in order to create tftp server on my Ubuntu host machine. I followed the instructions the and only way to create and edit /etc/xinetd.d/tftp is using root permissions (...

ubuntu qemu ifconfig tftp

solsTiCe

3:23 PM

hi. so did you notice any slow down with the new security patches for metldown ? I haven't yet but I use my ubuntu as a desktop

cl-netbox

3:41 PM

Hello :)

@solsTiCe Hi :) In m case : not any slow down issues so far ... I have my main system (fedora) patched since nearly a week now and tested everything, including running multiple VMs at the same time. Also my ubuntu VMs (desktop and server) behave as usual and don't show any performance problems. :)

Charles Green

4:09 PM

@solsTiCe I just ran the update this morning, and have not noticed any real slowdown in my laptop system

Ask Ubuntu Meta

0

Q: Wrong duplicate

There are many questions regarding a buggy kernel being mis marked This is another duplicate of Kernel panic after update to 4.4.0-108-generic being mis marked as My computer boots to a black screen, what options do I have to fix it? Examples : Booting problem black screen Kernel panic after ...

discussion

cl-netbox

Hi @CharlesGreen :)

Charles Green

Hi @cl-netbox How's the day going?

cl-netbox

@CharlesGreen fine - thank you :) and yours ? just read that your upgrade processes went smoothly :) I can confirm the same. :)

Charles Green

@cl-netbox The day is going pretty well - I'm considering re-partitioning my disks so I have a separate '/home' directory, but I'm trying to talk myself into waiting for doing the installation of 18.04

cl-netbox

4:24 PM

@CharlesGreen I would wait ... but why a separate /home ? I suggest to create separate partitions for your personal stuff and store everything there (makes new installations easy as easy can be) ? I use /home for nothing else than storing settings. :)

Ubuntu Questions on U&L

0

Q: How can i run a script on startup Ubuntu Server 17.10

How can i run a script on startup Ubuntu Server 17.10? I think that was changes on Ubuntu Server 17.10

ubuntu

Charles Green

@cl-netbox Might be better your way. I have a desire to separate my data so that I don't have to pull it all from backups during reinstall... but I couple that with a very bad habit of storing stuff in /home/<username>

cl-netbox

here is where I store everything (second built-in disk) :
[cl@cl-fw-1 ~]$ ls -l /run/media/cl
total 40
drwxrwxrwx+ 14 cl cl 4096 21. Dez 14:26 data
drwxrwxrwx+ 12 cl cl 4096 22. Nov 2016 media
drwxrwxrwx+ 10 cl cl 4096 16. Nov 12:01 rescue
drwxrwxrwx+ 12 cl cl 4096 3. Okt 11:46 system
drwxrwxrwx+ 7 cl cl 4096 12. Jan 2017 virtual
(although the "virtual" partition is on the system disk)

Charles Green

@cl-netbox No separate disk in my system (I think no space in the box :( ) - do you symlink from /home/cl/Documents to someplace in /run/media/cl?

Arcticooling

@terdon the reason I ask for migration is because there is a 40 minutes gap and I might be diverted by that time to another task and then miss deleting the question but I'll prefer deleting and republishing above migration from now.

cl-netbox

4:41 PM

@CharlesGreen no, I don't symlink anything ... but it doesn't matter if you have a separate disk, simply create a new partition on your disk and store everything there (e.g use the "save as" function and select a folder on that partition). :)

terdon

@Arcticooling It's just better for everyone. Granted, in this case it wouldn't make much difference, but for older posts it is quite relevant since the migrated question keeps the timestamp of the original site, so it won't be shown first on the "questions" page.

And also, if you delete, you don't need to wait for one of the mods to do it.

Arcticooling

Are you sure one doesn't have to wait? I remember a case or 2 I had to wait...

Thomas Ward

there's never been a time delay in mod migration

but you could copy.paste it over yourself, just saying... :P

terdon

@Arcticooling Wait for what? Wait before being allowed to delete?

Arcticooling

Wait before being allowed to re-post in another site.

The time delay I experienced is when I deleted a question and tried to paste it in another SE site right afterwards @ThomasWard

cl-netbox

4:47 PM

all these folders in /home are empty and unused :
[cl@cl-fw-1 ~]$ ls -l /home/cl
total 32
drwxr-xr-x. 2 cl cl 4096 21. Nov 19:11 Desktop
drwxr-xr-x. 2 cl cl 4096 21. Nov 19:11 Documents
drwxr-xr-x. 2 cl cl 4096 21. Nov 19:11 Downloads
drwxr-xr-x. 2 cl cl 4096 21. Nov 19:11 Music
drwxr-xr-x. 2 cl cl 4096 21. Nov 19:11 Pictures
drwxr-xr-x. 2 cl cl 4096 21. Nov 19:11 Public
drwxr-xr-x. 2 cl cl 4096 21. Nov 19:11 Templates
drwxr-xr-x. 2 cl cl 4096 21. Nov 19:11 Videos

Charles Green

@cl-netbox But I'm really, really lazy (and recognize this as a problem) and I really, really like just storing stuff in the default directories!

cl-netbox

@CharlesGreen well, then use the symlink function ... :) it's a "one time job" which you only have to repeat when you install a new system. :)

terdon

@Arcticooling Hmm. Are you sure it wasn't on the same site?

cl-netbox

Hi terdon :)

Arcticooling

99%

Charles Green

4:51 PM

@cl-netbox Something to add to my giant 'This is what you do when you reinstall' script.... :)

terdon

@Arcticooling Yep, you're quite right:

> Users with < 125 rep, 40 minutes since their last question anywhere on the network (This applies to the user's IP address, not their account. If the user shares that IP with other users, they can be limited by the other user asking a question anywhere on the network.)

241

A: The Complete Rate-Limiting Guide

Rate Limit Rationale Loading pages Undisclosed limit, applies to IP addresses Applies to the entire network; if one makes too many requests on one or more sites, access to all network sites is restricted Should not be triggered during normal browsing; if you get it, it generally means you're...

cl-netbox

@CharlesGreen hahaha ... :) when you are a lazy guy (as you said) that is the most convenient way ... :)

Charles Green

@cl-netbox Eh - I forget what all I had installed until suddenly I miss it... Also, since I usually test the upcoming OSs in beta, I just load the beta into a VM and run the script and then go back later to see what failed...

cl-netbox

@CharlesGreen everything is a matter of planning, preparation, management and documentation ... once you do everything systematically, it takes nearly no-time to set up new systems. In my case : system installation - less than 10 minutes / system settings and applications settings setup - about 1 or 2 hours. That's it ! :)

Thomas Ward

@Arcticooling is there a reason you can't just wait that 40 minutes? ~~I mean, you are making us do work~~

cl-netbox

5:03 PM

Hi @ThomasWard :) Everything dark and evil enough ? :D

Charles Green

@cl-netbox Hence my giant script, with lots of comments internally about "This used to work" and "need to add that repository"

Arcticooling

Of course I can but I could be diverted by that time to some other tasks and publish the question only later, much later even, sometimes, and lose the time by which other people could have free time answering. Although, it's not critical.

Thomas Ward

@cl-netbox there is never enough Darkness.

cl-netbox

@ThomasWard hahaha ... im my case : never enough brightness :D

@CharlesGreen everybody has his own way of doing it, your script is a good idea ... I use .txt files where I have everything documented. :)

Thomas Ward

@Arcticooling FYI moderator flags like the one you did?

they ping all SE network mods

so don't use that just to ask for something to be deleted, there's probably one of us already in here you can just ask us to delete it direct

Oli

5:12 PM

@Arcticooling As I say in my answer, automating all of that without [out-of-band] testing is a superb recipe for production server downtime when you least expect it.

May not be the answer you want, but you keep asking about best practices. I've given you it.

Arcticooling

I think I missed that in your answer @Oli. I understand correct that only security-upgrades are tested, hence safe?

Ubuntu Questions on U&L

0

Q: Notifying myself if my Nginx app / site is down

I have an Ubuntu 16.04 xenial Nginx server environment with a few webapps on it under /var/www/html. How could I notify myself to my email at gmail.com if my site is down, if it shows 404? The desired state is that if it does show an 404 at least in homepage, I'll get a daily email at gmail, pe...

ubuntu email wget curl error-handling

cl-netbox

@Arcticooling no, all updates from the stable channel (main repo) are tested and safe to install. :)

Arcticooling

So @cl-netbox one could wonder why the devs of unattended-upgrades allow only security upgrades by default..

terdon

@cl-netbox That's not true. I mean, sure, they're tested, but not on your system. You can't know if some change will break something on your side.

The fact that they've been tested doesn't mean you can blindly apply them to a production system and be certain nothing will break.

cl-netbox

5:18 PM

@Arcticooling do they ? well, I usually run apt update / apt dist-upgrade nearly daily manually ... :)

Arcticooling

I wish to do that but the psychological burden is heavy due to what many users of the site say about how that's dangerous.

cl-netbox

@terdon that's true of course ... that's what I intentionallymeant :)

@terdon completely agree ... there is always a (minimal) risk that something doesn't work on your system as expected. :)

terdon

Also things like you've installed program foo and the new version of bar doesn't work with the version of foo you have. Things like that cannot be tested. So you just never have unattended upgrades for production systems.

Or, you do, they're called hiring a sysadmin :P

cl-netbox

@terdon Sorry for not being precise enough @Arcticooling ... of course it is better to test updates before installing them on a production system. :) But mostly things work fine ... :)

@terdon agree again ... the reason why I disable most of all automatic settings and manage my systems manually. :)

Charles Green

5:43 PM

Maybe someone should write a short guide along the lines of "If you just install and run Ubuntu, go ahead and to 'apt update' and 'apt upgrade'" -> if you 'apt install <some program here>' there may be some risk, and if you 'add-apt-repository <some repository here>' the Ubuntu team has probably not had time or inclination to check these other programs -> they may fail...

Rinzwind

We got it nailed down perfectly. We have THREE systems. 1 is live and used by customers. 2. is our updated server that had system updates and our new software. 3. is our updated development server.

Charles Green

And if you 'download <strange .deb file here>' and 'dpkg -i <that strange .deb file>' then there is probably no testing that has been done...

Rinzwind

we code on 3. when done move it to 2. we test on 2. we agree it works and let a random group of customers test. and then 1. is replated by 2.

Ubuntu Questions on U&L

6:43 PM

-1

Q: Ubuntu | No WiFi Adapter found

So Im basically having problem same as in my old post but with Ubuntu too. I cannot connect to wi-fi because there is an "No Wi-Fi Adapter Found" message. I dont a have a idea what to do. My notebook : Asus X555LN-XX507H Network Adapter : Broadcom 802.11n (This reffers to my older post Kali Linu...

ubuntu networking wifi

dessert

6:53 PM

I just hate it when a question body starts with “So”. o_O

Rinzwind

stop doing that and just ignore them :+)
makes for a better life

dessert

@Rinzwind Hrm, you may be right.

Rinzwind

No you got that wrong too >:-D I AM right

Ubuntu Questions on U&L

0

Q: Where to install bash completion scripts for out of tree packages?

I'm installing ripgrep on Ubuntu. It doesn't exist on the official repository or on private PPA's, so I'm following the project's instructions to install it as an out of tree package: https://github.com/BurntSushi/ripgrep#installation. I managed to learn that these packages should live on /usr/l...

bash ubuntu autocomplete

terdon

@Rinzwind Pfft. I'm right both AM and PM. Amateur.

Rinzwind

7:16 PM

no you are just weird

terdon

7:45 PM

Weirdly right, you mean!

Takkat

7:58 PM

Nice - my 16.04 gets 4.13

Arcticooling

Care to review my cronjob? codereview.stackexchange.com/questions/184784/…

Takkat

I'm reading that 14.3. with Spectre/Meltdown patches rolled out earlier and 4.10 reaches an early EOL - good news I hope.

dessert

8:42 PM

dumb question: How do I know whether a software is FOSS if it doesn't mention GPL? This is not, or is it?

JohnP

@dessert It is. Under the zlib license.

> Poezio is Free Software. (learn more: gnu.org/philosophy/free-sw.html). Poezio is released under the zlib License. Please read the COPYING file for details. The artwork logo was made by Gaëtan Ribémont and released under the Creative Commons BY license

github.com/poezio/poezio

dessert

8:59 PM

@JohnP Thank you! Zlib is listed in GNU GPL's license list as compatible.

TheWanderer

halp stackoverflow.com/questions/48195927/…

JohnP

@dessert No prob. :)

Aaron Hall

10:21 PM

@Seth so how is that supposed to work?

Seth

@AaronHall Ah! Well, can you tell me what hardware you're working with first and what "tablet mode" means to you?

It's not a software feature I'm familiar with outside of Windows.

Most likely you'll need something like this:

6

A: How can I get a notification using Notify-OSD when the charger is inserted/removed?

dbus Some people reported my earlier udev solution sent the notification too many times when the power cable was plugged in. I couldn't reproduce that but I wrote this python script to utilize dbus instead of udev. Save it as a .py file somewhere on your hard drive. Mark the file executable ...

but it depends on what the system does when your dock/hardware switches.

Chai T. Rex

Has anyone ever had the screenshot feature turn their screen black and then leave it black? If so, what's a good way to recover from that.

Seth

@ChaiT.Rex Ctrl+Alt+F1 to a TTY, login, then export DISPLAY=:0; sudo systemctl restart lightdm should do the trick.

Ctrl+Alt+F7 to get back. It'll log you out though.

IanC

good morning

Seth

@IanC good afternoon :)

IanC

10:30 PM

what's up? all good?

Seth

eh, not great, but could be worse :)

Configuring Windows update services for my test environment.

Chai T. Rex

@Seth Ahh, almost the same effect as what I did (rebooting from Ctrl+Alt+F1) :(

Seth

@ChaiT.Rex More or less, yes. It just saves time.

Check your logs. /var/log/kern.log and /var/log/messages around the timestamp that it happened. See if there's anything suspicious.

Aaron Hall

@Seth It's a thinkpad yoga 460 www3.lenovo.com/us/en/laptops/thinkpad/thinkpad-yoga/Yoga-460/p/…

Seth

@AaronHall Ok. And what do you expect Xubuntu to do when you switch to tablet mode? and what (if anything) does it do now?

Aaron Hall

10:41 PM

It should go into tablet mode when the screen is flipped over and the keyboard keys retract - it should rotate the screen and disable the touchpad, potentially launch a software keyboard...

Chai T. Rex

@Seth I checked kern.log and found nothing. messages is nonexistent. Let me find the package the screenshotter is in.

Seth

@ChaiT.Rex Might be syslog instead of messages.

@ChaiT.Rex gnome-screenshot I'd think

@AaronHall Okay, that shouldn't be hard to do. I'm stuck in Windows atm working with some stuff, but I need to reboot into Ubuntu later today anyway. Plan on being around? Have to sift through some logs to see what the system does when you switch things around.

Aaron Hall

@Seth 9:30 to 11:30 ish Eastern time...

Seth

@AaronHall mm, so 8:30 PST. K. I'll being you when I'm done :)

Aaron Hall

yes ping me

Seth

10:45 PM

@AaronHall If you feel like it here's some reading that should help you out: wiki.archlinux.org/index.php/Udev, wiki.archlinux.org/index.php/D-Bus. You'll want to use d-feet to capture dbus events and udev-monitor (iirc) to watch udev events.

Also read my answer, the one I linked up there --^^^

Aaron Hall

@Seth ok, what answer? this?: How can I get a notification using Notify-OSD when the charger is inserted/removed?

Seth

24 mins ago, by Seth

6

A: How can I get a notification using Notify-OSD when the charger is inserted/removed?

dbus Some people reported my earlier udev solution sent the notification too many times when the power cable was plugged in. I couldn't reproduce that but I wrote this python script to utilize dbus instead of udev. Save it as a .py file somewhere on your hard drive. Mark the file executable ...

Aaron Hall

ok

Seth

@AaronHall yeah that one. The principal parts will be the same.

I feel like someone must have set this up before though. There might be a package pre setup for this. I'll have to look later.

Aaron Hall

ok, gotta run to a thing.

Nathan Osman

10:50 PM