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Questions tagged [ubuntu]

Please don't use this tag just because your system is running Ubuntu. Use it _only_ if your question is somehow specific to Ubuntu only. Note that https://askubuntu.com is specifically dedicated to Ubuntu questions.

10
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606 views

Why ZFS scrub does not complete?

First off let's start with what I'm running. This is a home media server running Ubuntu 16.10. I have one pool of mirrored 6 terabyte drives that are about half full. I built the system about a month ...
10
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0answers
4k views

Graph is too large for cairo-renderer bitmaps Error

Im trying to use pyreverse to generate images of UML diagrams for a project source code. When I run the pyreverse command and specify to generate .png images, it runs and then after a while, it shows: ...
8
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0answers
2k views

unlock login gnome-keyring on i3wm autologin

Problem This question seems to have been asked a billion times, but I'm still completely unable to unlock my login keyring automatically. Background I automatically login, chvt and startx along ...
5
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0answers
2k views

Apple MagicTrackpad2 on Ubuntu

I bought an Apple Magic Trackpad2 and want to use it on Ubuntu 16.04. Actually moving the pointer works, but e.g. two finger scrolling or tap to click doesn't. So I came up with the following ...
5
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0answers
364 views

How do I define an Ubuntu Linux16.04 systemd service for fastcgi-mono-server4 or xsp4?

How do I define an Ubuntu Linux16.04 systemd service for fastcgi-mono-server4 or xsp4? I have already defined an Ubuntu Linux16.04 systemd service for apache2 by copying obex.service to apache2....
5
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0answers
5k views

Grub rescue after corrupted hard-drive (“read-only filesystem”)

I run xubuntu 12.04 alongside a NTFS storage partition and a windows 8 partition. I moved my MySQL data directory off the xubuntu (ext4) partition, onto the NTFS partition, and did an import of a ...
5
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0answers
4k views

`crontab -e` sometimes fails with “Creation of temporary crontab file failed”

From time to time crontab -e fails on me on a Ubuntu box. It is the same for all users including the root and crontab -eu <user> under the root. Goes like this on a regular basis, a success here ...
5
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0answers
9k views

Is there a solution for when a system hangs on “switching to clocksource tsc” anyway?

Ok so this is exactly what I did yesterday, and what I have tried to solve the problem so far. The distribution is Ubuntu Server 12.04. What I have done just before the error appeared I added a new ...
4
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0answers
385 views

crashplan peer-to-peer backup alternative

I'm looking for a backup solution to replace Crashplan's peer-to-peer backup that has recently been discontinued. I am looking for recommendations on a solution. Here is my scenario: I have several ...
4
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0answers
3k views

Extremely high memory usage Android studio and emulator

After upgrading Android Studio to 2.3, I've encountered extremely high memory usage. Previously, I would keep my pc(including Android studio and emulator) on for several weeks, and RAM usage would ...
4
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0answers
826 views

Create virtual microphone and output sound to it

My goal is testing Video Room Application, so I'm going to create multiple virtual machines with virtual webcams and microphones. Webcam is working fine with v4l2loopback, but microphone is not. I'm ...
4
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0answers
224 views

ncftpput don't create parent directory

I am trying to upload multiple directories recursively to an FTP server, (and FTP is the only way). Say I have the following environment: Remote: / /remote-files/ /readme.txt Local: /my-website....
4
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0answers
2k views

Dell XPS 13 9350 wifi dying with Broadcom BCM4350 and 4.8 kernel

Launchpad report: for all those with the same problem, please subscribe to this report I opened in Launchpad so that it can gain some traction. I've been using Ubuntu 16.04 with kernel 4.7 for some ...
4
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0answers
528 views

“No protocol specified” when starting Xorg via lightdm, but works when started directly

To start the X server on boot, use of a display manager such as lightdm seems to be the preferred method. However, if I start X by starting the lightdm service, I get a "No protocol specified" error. ...
4
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0answers
5k views

Console: Can't type special characters (Ubuntu 14.04)

We have linux-based computers (Ubuntu 14.04.4) prepared by other company to use their software. We have root password. Those computers has no X Window System. Just consoles. There is a problem with ...
4
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0answers
516 views

404 Not Found. File exists (mounted)

First off, I will update this post with any information you may need, but since I have no idea where to begin, I will try to summarize the issue. Just ask if you want to see something. I'm having ...
4
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0answers
18k views

How to get to recovery mode if grub screen does not appear?

I cannot login my Ubuntu12.04 (which is VM running on OSX using VMWARE FUSION 6) because I have changed permission of /tmp for some purpose before rebooting the machine. Thus I tried to boot Ubuntu ...
4
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0answers
2k views

Linux - Only first virtual interface can ping external gateway

I created 3 virtual interfaces with different MAC addresses all linked to the same physical interface. I see that they can successfully arp for the gateway (gw) and they can ping (the request is ...
4
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0answers
636 views

How can I crop a 1920x1200 monitor to 1920x1080?

I have just purchased a 1920x1200 monitor, and have some situations where I want to force the output to the more common 1920x1080. However, I don't want to distort the output, and would prefer a "...
4
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0answers
1k views

How to configure external USB touchpad for a laptop

I have a laptop that, obviously, comes with a touchpad and a keyboard. However, I have an USB keyboard with integrated touchpad that better suits my needs. I use Ubuntu 13.10 and I cannot find how to ...
4
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0answers
3k views

How do I change file/directory permission of a nfs mounted directory, so I access files as user?

On a Ubuntu computer I mounted a directory from another computer using the following line in the fstab: 12.34.56.78:/space/Images /mnt/space/images nfs rsize=16384,wsize=16384,rw,auto,nolock 0 0 ...
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0answers
1k views

Remmina doesn't work with keyboard when connected remotely

In order to bypass firewall/GPO constraint, I want to use Ubuntu as springboard to rdp to a Windows box on the same LAN remotely. I can xrdp to ubuntu via sesman-Xvnc module. I can run remmina from ...
4
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0answers
758 views

Compiling and running Snapper for Ubuntu

I am trying to get snapper working in my Mint 14. (The version from launchpad is old and not compatible with Ubuntu 12.10. The OpenSuSe's build project failed to build it, too). So I try my luck with ...
4
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0answers
284 views

To what extent does LXC manage configuring the network interface in a container?

In the LXC config file we can specify an IP address for a container: lxc.network.type=veth lxc.network.link=br0 lxc.network.ipv4 = 10.1.0.35/16 lxc.network.flags=up lxc.network.hwaddr= 00:16:3e:24:26:...
3
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0answers
49 views

Can I create a linux server user without creating a complete new account?

I've setup a Webserver with a GIT branching model. Now I want to create something like a technical user on my server. This user should not have an own account (I just need the user to to execute git *,...
3
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0answers
55 views

Cannot change memory protection

I have a tricky problem with memory protection. I am not able to start some programs because of the problems with some libararies. I run into a "cannot change memory" issue. I mapped the user home to ...
3
votes
0answers
52 views

ThinkPad second “sticky” backspace key

I have bought a Lenovo ThinkPad T580, and noticed that in the upper right corner of the keyboard, there is a second backspace button (in addition to the other backspace button right above the ENTER-...
3
votes
0answers
78 views

Unable to find relevant linux headers

I am going through the steps to be able to use my Wacom tablet (CTL-6100WL) and I am to the point where I am installing the linux headers however this happens. (xenial)grace@localhost:~$ uname -r 3....
3
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0answers
448 views

Failed to get properties: No such interface '' in Ubuntu 16.04.3 LTS

I Created this Unit file tdk-api.service in the /etc/systemd/system folder with this permissions: -rwxr-xr-x with this content: [Unit] Description = tdk API daemon [Service] Type = simple ExecStart ...
3
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0answers
102 views

how to prioritize udev-rules over the driver/kernel (network interfaces names)?

I have an ubuntu server 14.04 virtual machine with 2 network interfaces eth0 - for web management, SSH eth1 - for incoming span network analysis I've configured the machine with udev rules (to ...
3
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0answers
171 views

Why doesn't the keyring used by XFCE migrate to i3?

I'm moving from Xubuntu XFCE to i3 and I have this option checked in XFCE, Launch GNOME services on startup Enable this option if you need the GNOME keyring daemon to be run on startup. I can't ...
3
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0answers
58 views

USB bulk write works in VM linux (on win7) but not in native linux (ubuntu 4.19)?

I'm experiencing weird behavior on a custom board that is flashed through USB hub and I'm trying to determine the root cause. When flashing is attempted from natively (Linux XPS-15-9560 4.19.0-041900-...
3
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0answers
214 views

KVM passthrough in virtual machine more than 3 usb devices

I have a question, how can i passthrough in virtual machine more than 3 usb devices? I have a usb hub and i cannot passthrough in virtual machine more than 3 usb device. My usb device connect to usb ...
3
votes
0answers
73 views

Hosts file no longer ignoring midline comments

I've just upgraded from ubuntu 16.04 to 18.04 My /etc/hosts file has a number of lines in the form: 1.1.1.1 domain1.net domain2.net # domain3.net domain4.net (In other words, I had originally ...
3
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0answers
830 views

Ubuntu - lftp will not connect to ftps site (Fatal error: gnutls_handshake: An unexpected TLS packet was received.)

I have a specific ftps site that I cannot connect to with lftp. When I attempt to connect I get the error: Fatal error: gnutls_handshake: An unexpected TLS packet was received When I use gnutls-...
3
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0answers
42 views

implementation of mounting external hdd and usb stick

Lately I've been interested in knowing how Ubuntu(bionic) and Fedora(27) implement the auto mount features and especially how to change the mount properties (noatime, relatime and other niceties.) ...
3
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0answers
58 views

How to open child windows on same display as cursor in Gnome?

I'm doing a bunch of work in Pure Data on Ubuntu 18.04 & Gnome 3.28 with a dual-monitor setup in which the secondary monitor is to the left of the primary. Working in Pure Data involves frequently ...
3
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0answers
544 views

Why does Xorg consume 200% cpu

I have an Ubuntu 18.04 system using Gnome3. I had some problems with my NVIDIA drivers when upgrading from 17.04. After a few iterations of purging and installing nouvea and nvidia proprietary drivers,...
3
votes
0answers
2k views

Why is initramfs dropping to a shell after installing Ubuntu next to a Windows 10 installation?

I have installed Ubuntu 18.04 LTS via Live USB on an ASUS Zenbook 13 UX331UN that is shipped with a preinstalled Windows 10. It is a UEFI system with secure boot enabled and fast boot disabled. I'm ...
3
votes
0answers
236 views

Hibernate used to work perfectly, but suddenly stopped working

So the hibernate functionality on my laptop use to work perfectly with Ubuntu. I would hibernate when switching to Windows and then thaw coming back. I literally never shutdown my Ubuntu partition for ...
3
votes
0answers
539 views

“su: must be run from a terminal” with lxc

I am trying to understand the following error and the solution I connect to the lxc container with the following command #lxc exec cont-01 -- sudo --login --user ubuntu and after login in on the ...
3
votes
0answers
160 views

Hang applications when pasting from terminal

I am encountering a very weird bug. Sometimes, when I copy contents from the terminal and paste them elsewhere (e.g. in a text editor, in a browser tab) it hangs that application or browser tab. I try ...
3
votes
0answers
54 views

Why did apt not prompt me to confirm installing dependencies?

Usually, installing a package with dependencies that aren't currently installed will make apt confirm whether this is desired before proceeding to install: $ sudo apt install gnome-terminal Reading ...
3
votes
0answers
879 views

kernel freezing on ubuntu 16.04

I recently switched to ubuntu 16.04 on my laptop which is a thinkpad P51. I am having the issue that sometimes the login desktop freezes in the sense that I am able to move the cursor and interact ...
3
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0answers
3k views

RTNETLINK answers: File exists on Ubuntu Server 16.04

I have a fresh new install of Ubuntu Server 16.04. After installation, network connectivity was fine. I installed QuickBox, it's a seeding/torrent server software (https://quickbox.io). After the ...
3
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0answers
196 views

sda:sda1 keeps showing up in dmesg

dmesg logs is 'filled with' the following : [613051.997981] sdf: sdf1 [613052.068773] sdf: sdf1 [613352.060804] sdc: sdc1 [613653.176468] sdc: sdc1 This just continues on and on about every 300 ...
3
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0answers
48 views

update-grub/os-loader doesn't see multiple Ubuntu installations on software Raid

I have two disks containing multiple software RAID1 (mdadm) partitions . I installed Ubuntu 14.04 on /dev/md0 and /dev/md2 (corresponding to /boot and /, respectively) and Ubuntu 16.04 on /dev/md1 and ...
3
votes
0answers
3k views

install linux os on lenovo ideapad miix 310

I already tried to install Ubuntu and Mint on my tablet and it almost worked, I just had problems getting auto rotation to work. The main problem is that there appear some kind of striations, e.g. at ...
3
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0answers
111 views

Are {/bin, /lib, /sbin} symlinks into /usr in Ubuntu?

I am a little confused by this question about moving files from /bin to /usr/bin on an Ubuntu 17.04 system. Reading the Ubuntu wiki says: For Quantal, merged /usr should be supported. On new ...
3
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0answers
39 views

Reverse “lvconvert --splitcache”?

In order to expand a Logical Volume, I had to split the cache off from it: root@server:/home# lvextend -L+50G /dev/vg1/home Unable to resize logical volumes of cache type. root@server:/home# lvs ...