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    Tuesday, February 26, 2019

    Linux Learning Linux

    Linux Learning Linux


    Learning Linux

    Posted: 25 Feb 2019 09:08 PM PST

    Hello, so I have a quick question. I just fully deleted windows and switched to Ubuntu Linux, and I have a basic understanding and can operate it, but I want to learn a little more (like command line) any good references? I just don't know where to start! Thanks in advanced!

    submitted by /u/justinsauce9000
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    Just found out about lsattr and chattr, what is all this?

    Posted: 26 Feb 2019 06:43 AM PST

    As the title states.

    I've been looking at this and it's kinda amazing.

    I found out by tracking a folder with auditctl and noticed in the logs that a certain file was being checked with /usr/bin/lsattr -vd <path of file>

    Manually doing that gave a result of: <inode number> --------------e---

    So apparently the e stands for extent format (e)

    And there's stuff like i which stands for immutable. Which means what exactly? The file can't be moved somewhere else? Or its contents cannot be altered? Or something else even? The manpage is very small and doesn't explain much.

    I see stuff like and undeletable (u), which I think might be useful for certain files?

    Is this the kind of stuff that the regular user/admin is supposed to mess with or is it more something for the kernel/automated tools?

    EDIT: Several people have stated to read the manpages.

    So I'll repeat what I already wrote: The manpage is very small and doesn't explain much.

    I find the manpages to be very basic and not informative beyond the semantics. As in, I'm supposed to know what the attribute does by its name alone? That's not very informative.

    submitted by /u/Vordreller
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    Need help with performance issues!

    Posted: 26 Feb 2019 12:33 PM PST

    I've been playing around for a couple of days with several linux distros and I've come to realize that my steam games' performance (all with linux support) is not satisfying enough, I'm talking about major FPS differences from Windows 10, something like from 200FPS to 20-30FPS. I'm using a rx 580 8GB gpu and currently on Linux Mint 19.1, looking for advice and help since it's rather unplayable. Haven't made any driver updates/changes, only updated packages via the built-in update manager.

    submitted by /u/bot_s_wrath
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    How to make boot persistent settings?

    Posted: 26 Feb 2019 08:51 AM PST

    I am running Debian on a 4k TV and by default it is always overscanning it, so I cannot see the edges. I installed Nvidia non-free drivers, so now I can set up underscanning. The problem is that it does not remember it, and I have to apply this setting each time I boot the system. The setup interface can be used to save a config file, but how can I get it to apply these values on each startup?

    submitted by /u/vook2306
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    How to enable sounds for pop-up notifications in XFCE?

    Posted: 26 Feb 2019 05:46 AM PST

    Hi, I've tried to enable sound for popup notifications in XFCE but with no success. I know that other system sounds are working. I double checked by running canberra-gtk-play -i messageand it worked. I can't get the notification sound to work, though. I checked /usr/share/sounds/freedesktop, but I couldn't find any audio file named "notification" or anything similar. Do you know how to fix it?
    Thanks in advance!

    submitted by /u/Mati20187
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    Can't go fullscreen or make my Ubuntu VM larger

    Posted: 26 Feb 2019 03:37 AM PST

    Virtual Box version : 6.0.4

    Laptop + OS : Macbook Pro 2018 with macOS 12.14.2

    Hello everyone,

    I wanted to install Ubuntu on my laptop to finally start using it. I installed VBox version 6.0, downloaded Ubuntu 18.04 LTS (.iso file) and set everything up. I couldn't change the resolution or go full screen/enlarge the window, so I installed the Guest Additions version 6.0.4 for my machine.

    Everything worked out, I rebooted the VM and then launched it again. Now, I can't go fullscreen or enlarge the window. I can extend to a certain point, but if I make too large I get white bars around the desktop and get a black screen. Going full screen does the same thing. Here's a picture so that you guys can see my problem : https://imgur.com/a/2EoNa2B

    If I make it smaller, I get back to the desktop. Changing the resolution to 2560 x 1600 (my laptop resolution) simply doesn't work.

    Anyone can help me on this? I've been trying for hours, looked everywhere (Yes, I tried googling my problem, no, I couldn't find any solution) people telling me to install the guest additions altough they are already installed, so I really don't know what to do at this point.

    Please feel free to ask me to clarify or give more informations about my problem, so that we can find a proper solution to it.

    Edit 1 : tried right now to make the scale 200%, and resolution @ 2560x1600. It kinda worked, I could only see a quarter of the desktop. Expanding the window led to the same black screen shown in the screenshot.

    The resolution setting in Ubuntu parameters knows and tells me the correct resolution I'm in (making a little smaller/bigger changes the values).

    Edit 2 : the maximum size I can make it is this : https://imgur.com/6RrFjQW. If I make it bigger, I get this https://imgur.com/a/2EoNa2B (screenshot from before). Tried View > Virtual screen 1 > scale to 200% (autoscaled output). It's pixelised, and the resolution in Ubuntu settings doesn't change accordingly. When I tried to change it, it simply doesn't work.

    TL;DR : Can't maximize the size of my Ubuntu VM or go fullscreen. Additions are installed and working.

    Edit 5 : It seems that this a first of its kind, since no one was able to help me so far. Is there a way for me to contact Oracle Virtual Box?And PLEASE, don't downvote my post!!!

    Edit : I think I've fixed it, not so sure though. Having performance issue, how can I fix that?

    Last Edit : I gave up. I'll stick to mac OS, I guess.

    submitted by /u/Kentto7
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    qBitTorrent not respecting the download location?

    Posted: 26 Feb 2019 07:43 AM PST

    I am running ubuntu on one drive (/) and have another drive (/media/user/Files) that is set as qBitTorrent's download path. The problem is when i download something it gets saved to /media/user/Files2 for some reason even though it's not existing. I tried "fixing" the permissions using chown -hR user Files, but that didn't seem to fix it.
    Any idea what could be up with it?

    submitted by /u/Beta-7
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    Help with glib

    Posted: 26 Feb 2019 01:06 PM PST

    Hi, I'm trying to compile zathura (pdf viewer). For this I need to compile girara. At some point it says:

    Invalid version of dependency, need 'glib-2.0' ['>=2.50'] found '2.40.2'. 

    So I went to glib website (https://developer.gnome.org/glib/2.58/glib-building.html) and found the compilation instructions there. There they say:

    Before you can compile the GLib library, you need to have various other tools and libraries installed on your system.

    with a very long list of dependencies. As a linux newbie I do not feel able to proceed. I give up.

    General question: I'm on a quiet old version of Ubuntu (14.04), but for several reasons I can't upgrade to a newer one. I realized that many (very popular) programs are missing completely in the repos for this version of Ubuntu. Do I have to compile them all by myself? If that's the case, that seems to be a HUGE disadvantage of Linux compared to Windows.

    submitted by /u/pipppoo
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    How can I remove file name padding for sequential files?

    Posted: 26 Feb 2019 09:01 AM PST

    I have some files that where generated with the format xyz_%04d.png. How can I remove the xyz, the underscore and the leading zeros and leave everything else? Zmv preferred but what ever works is fine.

    Xyz_0001.png to 1.png

    Xyz_0256.png to 256.png

    submitted by /u/JasterPH
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    How to read kernel-rapports/solve the problem

    Posted: 26 Feb 2019 12:15 PM PST

    I'm using Fedora 29 on a new laptop off mine. Everything works great, except the wireless-card. For some reason there is no automatic driver for the RTL8821CE on Fedora (or Ubuntu, Debian, etc.). I installed a driver which was writted for arch (and has good results on Ubuntu), so I thought I'd give it a try. It was only option I had.

    Long story short, the wireless works. But when I'm at school (I study software) , I get very often that the drivers fails and has to reload. It's just a minor annoyance, but it happens way to much (and to random). Although I consider myself reasonable technical, I can't make heads or tails on the kernel-rapport.

    Could anybody give me some pointers? (or tell me what I also need to post, so they can tell me)

    submitted by /u/AgreeableExpert
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    Openbox, Radeon Vega RX11 iGPU and two monitors on Debian Testing

    Posted: 26 Feb 2019 11:40 AM PST

    title, I have a new build, currently no graphics card installed. the mobo has two video outputs (DVI and HDMI) both have a monitor connected, however upon booting only one gets signal, the interesting part is that it is seemingly random which.

    xrandr doesn't report the presence of a second monitor.

    anyone has an idea where should I start looking?

    submitted by /u/Kormoraan
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    How would you create a non-root, 50TB volume on a Linux server? What steps do you need to perform to partition, format, and mount it?

    Posted: 26 Feb 2019 11:06 AM PST

    file.tar.gz but "tar file.tar.bz2"?

    Posted: 26 Feb 2019 02:40 AM PST

    I'm wondering why this instruction wants me to download a gzip-file but when extracting addressing it as a bzip2-file. Or am I missing anything? Anyway it didn't work that way but with "tar -xf dnscrypt-proxy_1.9.5.orig.tar.gz".

    wget https://launchpad.net/ubuntu/+archive/primary/+files/dnscrypt-proxy_1.9.5.orig.tar.gz tar -xf LATEST.tar.bz2 

    https://github.com/pi-hole/pi-hole/wiki/DNSCrypt

    submitted by /u/Arjab
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    xdg-open xdg-mime what, huh? like damn..

    Posted: 26 Feb 2019 01:53 AM PST

    http://cdn.ltstatic.com/2007/February/TN757238_942long.jpg

    So I'm really trying to wrap my head around this thing with default applications, xdg mime. Environment variables are easy enough to grasp how it works and not much has to be set.

    Enter the world of xdg-mime & xdg-open..

    https://wiki.archlinux.org/index.php/Default_applications https://wiki.archlinux.org/index.php/XDG_MIME_Applications

    Firstly, what's my setup and what do I want to achieve.

    • Arch Linux with X environment
    • bspwm
    • urxvt
    • qutebrowser
    • fff
    • zathura/mupdf
    • inkscape
    • scribus

    I need .svg to open with inkscape when I try to open it through file manager fff. I must have read the wiki articles on default applications and xdg-mime a thousand times and it just boggles me how insanely complex this *seems to be. OR I might be too slow and it's really not that complicated OR there's a language barrier in the way.

    I would like to think there is some "opener" out where there would have a default dot file with sane defaults where common file types are grouped and listed out for the user to decide what application that should run what.

    svg eps ai odg xps urxvt -e inkscape tiff jpg gif bmp urxvt -e feh psd urxvt -e wine whatever/path/to/'Photoshop 7'/.exe ogg mp3 mp4 flac xxx 

    SO back to XDG. What is a MIME type? - let's start there. Or if you want, please provide a step by step example on how to set a tiff image to open with gimp.

    submitted by /u/Upphovsmannen
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    Trying to install Ubuntu to a bricked Macbook?

    Posted: 26 Feb 2019 09:08 AM PST

    I acquired an older white MacBook A1181 (I believe it is the original Macbook released in 2006) and unfortunately when I got the machine, the hard drive was somehow mangled, and on start up it just displays a blinking folder with a question mark (Which I believe means the start up directories are messy). I crafted a bootable USB for Ubuntu (Using Rufus I put the iso onto an 8gb flash drive, I've previously done this for a Windows laptop with no issue), but holding the Option button, which is supposed to bring you to a menu where you can select the drive to boot from, will just display the cursor which I can move, but shows no drives to load from. It only displays the mouse with no menus in front of a white background.

    I'm wondering if I'm being a noob and forgetting to do something, or if the directories are messed up there might be no way besides a new hard drive (Since I am not the original owner I don't have access to any osX discs). I've scoured the internet but have been unable to find a solution for a problem so specific, and am wondering if anyone here could lend a hand. Thank you in advance for reading.

    Edit: For clarity, if I have to restore osX onto this machine I will soon after be attempting to get Ubuntu on this system

    submitted by /u/NoidedNic
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    Show App on Two Different Displays at Once

    Posted: 26 Feb 2019 08:55 AM PST

    I'm running some GUI applications in Docker containers. I've done GUI passthru before, so I know how to get that up and running. However, I'm now in a unique situation where I want to have GUI passthru and VNC running for each container.

    So what I want to achieve, is for the application I run in a container to be shown on a screen that I'll pass to VNC (let's say :20) and also to be shown on :0. I want there to be separate screens because when I VNC into a container, I only want to see the application running in that container, and not everything on the host's :0.

    Is there anyway to achieve this?

    submitted by /u/WackyWormer
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    Something crashes whenever I log into Xubuntu, but the error reporters doesn't give me the option to look at details. How do I begin to diagnose the problem?

    Posted: 26 Feb 2019 02:52 AM PST

    Linux has always played poorly with this computer. I never quite knew if it was a hardware problem with the graphics/power or something kernel-related, but other than this vague error on login it is working tolerably well.

    submitted by /u/eirenamaru
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    Neofetch not displaying image(no display at all).

    Posted: 26 Feb 2019 02:42 AM PST

    Hey everyone, I'm trying to display an image in neofetch, but I cant seem to get it to work!

    Here's how the terminal and .config of neofetch look. I installed w3m and imagemagick already, and even made the image half really small in case it was the size that was too big.

    If anyone can tell me what I'm doing wrong, it'd be much appreciated.

    submitted by /u/reallinuxnoob
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    Trouble with reading font

    Posted: 26 Feb 2019 06:44 AM PST

    Im trying to have imagemagick covert output to a png and keep getting this error:

    convert-im6.q16: unable to read font `/home/x/.local/share/fonts/lemon.pcf' @ error/annotate.c/RenderFreetype/1439.

    convert-im6.q16: no images defined `/tmp/calendar.png' @ error/convert.c/ConvertImageCommand/3258.

    n30f: error reading file:

    n30f: error reading file: /tmp/calendar.png

    heres the script im trying to get to work https://pastebin.com/raw/tCFFNPdJ

    submitted by /u/justsoradical
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    Antergos drivers

    Posted: 26 Feb 2019 05:32 AM PST

    I just installed Antergos and i what to know if i need to install any additional drivers for my system. I run the command lspci and the results are this: 00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06) 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06) 00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05) 00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04) 00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05) 00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05) 00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5) 00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 (rev d5) 00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05) 00:1f.0 ISA bridge: Intel Corporation C220 Series Chipset Family H81 Express LPC Controller (rev 05) 00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05) 00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05) 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c) Bus 002 Device 002: ID 8087:8000 Intel Corp. Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:8008 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 004: ID 125f:102d A-DATA Technology Co., Ltd. Bus 003 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver Bus 003 Device 002: ID 046d:c31c Logitech, Inc. Keyboard K120 Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

    submitted by /u/andreasdimo
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    Windows workstations communication with linux server

    Posted: 26 Feb 2019 05:20 AM PST

    Hi All,

    I'm a linux noob. Recently got the job as a IT manager at a vfx school, primarily due to my VFX pipeline knowledge, and not my sysadmin skills.

    We have a bunch of windows computers on a AD domain. And now i had to make a linux machine running a software engine that only runs on linux.

    Long story short, on the linux machine i can run the software dashboard by typing http://hostname.mydomain.com:80, it's a renderfarm tool. However my renderblades (Windows workstations) can't see the engine. I realize this is probably because they can't communicate out of the box.

    How do i share my linux server, so that the windows machines can connect to it.

    Linux is running CentOS 7
    Windows is Windows Pro 10

    Hope you guys can give me some insight. Tried googling but not sure if this is very basic stuff, or i need to learn something major. :) Thanks in advance for your time.

    submitted by /u/DammDamm
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    Should I enable SATA Link Power Management in Ubuntu?

    Posted: 26 Feb 2019 04:28 AM PST

    I was a Windows 10 user for years, now that i have installed Linux(Ubuntu 18.04 LTS) on my laptop, the fans in my laptop keep running while using Ubuntu even when i haven't opened any apps. This was not the case with Windows. The fans went silent when i was not doing any graphic or CPU intensive task.

    So my question is whether enabling SATA Link Power Management(ALPM) solve my fan problem. I mean why are the fans blowing so fast even when I'm not doing anything. Does enabling SATA Link Power Management puts the HDD in to low power state when not in use? I'm also concerned with the power management cause i own a laptop. I'm a noob, please bear me with it. Sorry.

    submitted by /u/muktadirkhan889
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    Q about dual boot

    Posted: 26 Feb 2019 12:22 AM PST

    Hi!

    I plan on dual booting since I'm tired of windows but I want to be able to game easily. The plan is to switch fully to Linux when new game releases run better and without much hassle and when EAC won't be a problem :)

    But I want to know what is the best way to set up a dual boot? (Beginner to dual boot)

    Atm I have: 120GB SSD (w10) 2TB HDD (w10, storage) 1TB HDD (old, unused)

    So my windows is installed as UEFI on SSD(GPT). Should I buy a second SSD for Linux, make room on my 2TB HDD or use the old 1TB? Should I install Linux as UEFI as well?

    I have like 5 games in total and don't really use the whole 2TB space tbh. I also uninstall games that I don't play so it don't use unnecessary space.

    submitted by /u/SebastianOlivera
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    On pcsx2 emulator, the controller is not working.

    Posted: 25 Feb 2019 11:51 PM PST

    PCSX2 is detecting the controller as i can map the buttons, but when in game, it is not detecting the controller at all.

    Keyboard works fine. Controller is detected by default in windows version of pcsx2. Tried both on the flatpak and the one from pcsx's site, same result.

    Controller: logitech f310

    game: dragon quest viii

    submitted by /u/soham_m
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