Score: 1
Daniel Krajnik avatar
KVM-QEMU-SPICE: drag 'n drop files from guest to host?
in flag

Spice's guest tools work well for file transfers from host to guest, but don't work from guest to host. Spice's Webdav extension is a good workaround, but it has drawbacks (doesn't work from virt-manager viewer).

Clipboard works in both directions, so why not file transfers? Have I missed something or has there been no solution so far?

Score: 0
Cola_Colin avatar
Ubuntu 20.04, sound and microphone stopped working
us flag

A few days ago I got the message that /boot is full. I went ahead and did some cleanup according to some stackoverflow posts, removed old kernel versions 5.4.X, now there is space again. Everything seemed to work that day. But a day later sound and microphone stopped working. I am running kernel version 5.8.0-55-generic

When booting, after I login, the screens now stay black for an extended perio ...

Score: 0
rogersjoshmac avatar
MAAS set default cloud-init script
br flag

I have a MAAS server that deploys Ubuntu workstations.

When I deploy, I paste in a bash script I made:

Is there a way to set this bash script as default? So that MAAS would always use this cloud-init on machines I deploy?

Thanks ahead!

Score: 1
hakimo2 avatar
How can I make the C++ compiler support template for STLin order to install hpctoolkit?
cn flag

I am trying to install hpctoolkit using Spack. In order to do that, I executed :

git clone
cd spack/share/spack
spack fetch -D hpctoolkit
spack install hpctoolkit 

I can't execute the last command because I get the following error:

Error: ProcessError: Command exited with status 1:
    './' '--prefix=/home/hakim/spack/opt/spack/linux ...
Score: 0
Satyam Mishra avatar
Error: No Such Partition, Grub Rescue
vn flag

I am a newbie to Ubuntu, on the top of that I am facing the following issue:

I recently deleted a 3GB partition on my Windows (which was empty), after which when I rebooted, I could not get to grub, instead I was landed at an Error:

Error: No such partition
Grub Rescue>

I immediately searched YouTube and accordingly enetered the following in the rescue CLI:

ls (hd0,msdos7)
>>ext2 File Sy ...
Score: 0
sblee avatar
netplan gre tunnel
kg flag

I want to add gre tunnel in netplan.

name: gre0, mode: gre, remote:, local:, dev: eth1 I don't know what key value to put interface eth1 into gre0.

    version: 2
    renderer: networkd
            dhcp4: false
            dhcp6: false
            addresses: []
Score: 0
Andy K avatar
screen not displaying with Startech hdmi to usb adapter
id flag

I bought a startech hdmi to usb adapter a few weeks ago.

I've installed the driver for my ubuntu, display was doing fine.

However, a few weeks later, the screen is now, not displaying any images.

Funny part is that the star tech adapter is recognized when I plugged it in and the strange thing is that the sound channel is using the startech adapter.

Not sure, what is wrong.

When I type xrandr, no additiona ...

Score: 2
7edsdqwi90xr avatar
Why does one usb flash drive have different serial numbers in different operating systems?
cn flag

Why does one usb flash drive have different serial numbers in different operating systems?

$ usb-devices
T: Bus=02 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#= 3 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=13fe ProdID=4100 Rev=01.00
S: Manufacturer=
S: Product=USB DISK 2.0
S: SerialNumber=070A3638B1831375
C: #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=200mA
I: If#= ...

Score: 2
Andy A. avatar
How to edit UTF-8 files with vim
mo flag

How can I edit UTF-8 files with vim?

There is a problem with german special characters like 'Ä', 'ü'. There are some in the comments. vim shows Ã~D instead of 'Ä' and ü instead of 'ü' then. (I hope there is no encoding problem on your browser :)

I have no "~/.vimrc" file.

In the "~/.viminfo" is

# Value of 'encoding' when this file was written

If I enter locale, it gives ...

Score: 1
Alasdair Thomson avatar
Unattended upgrades for dotnet not working
cn flag

I am trying to configre unattended-upgrades for microsoft dotnet on ubuntu 20.04.2.

I added the origin and section to allowed-origins in my unattended-upgrades config:

    Unattended-Upgrade::Allowed-Origins {
        "${distro_id}ESM:${distro_c ...
Score: 0
Safejack avatar
How to use Ftfy
in flag

I have a xx.sql that has some encoding issues. eg:

represent†in Xhosa)Â

I was advised to use [ftfy to fix] ( I have installed pip install ftfy but for the sake of me cannot comprehend how to use it for example:

in terminal these are the commands i run :

import ftfy
ftfy --output=xx.clean.sql xx.orig.sql (not sure how to point to the location of xx.orig.s ...
Score: 2
Bob avatar
The error distribution in LWE
cn flag

$\textbf{Continuous LWE}$ : $(\overrightarrow{a}, b)\in \mathbb{Z}_q^n\times \mathbb{T}$, where $\mathbb{T}=\mathbb{R}/\mathbb{Z}$, $b = \langle \overrightarrow{a},\overrightarrow{s}\rangle/q + e\mod 1$, where the error $e$ is sampled from $\Psi_\alpha(x) := \sum_{k=-\infty}^{\infty}\frac{1}{\alpha}\cdot exp(-\pi(\frac{x-k}{\alpha})^2), x\in [0,1)$ over the torus $\mathbb{T}$. The density function

Score: 0
R Nijine avatar
Ubuntu Software app
cn flag

I'm new to ubuntu , whenever I try to open the ubuntu software app , it is not working properly it had loaded for 5 seconds and gets close by itself.

Score: 0
Using DNSMasq, how do I provide a single static route for an IPv6 network?
mx flag

Assuming I am running two Dual stack IPv4/IPv6 networks:

  • Network 1: Internet connected
    • IPv4 - provides a default route via
    • IPv6 - 2001:db8::0/64 provides a default route via 2001:db8::1
  • Network 2: Static assets
    • IPv4 - provides a route via to
    • IPv6 - 2001:db8:1::0/64 provides a route via 2001:db8:1::1 to 2001:db8:2::0/64

In a pure IP ...

Score: 0
questionador avatar
Access POP3 content from other computer
cn flag

I have a tough mission, that I have no idea how to accompish it. In our company, all the e-mail accounts are configured as IMAP accounts, therefore we can access the e-mail from wherever. However, there are 2 e-mail accounts configured as POP3 account. I REALLY have to make it possible for one of these two accounts to access all the e-mail content from home. We do not have remote access (neither a way t ...

Score: 2
Ullrich Fischer avatar
Firefox 89.0 64 bit won't run Facebook (and some other) videos
cn flag

The first frame of the video flashes up for a fraction of a second then a black window with "Sorry, having problems playing this video" with a link labelled "Learn More" in the centre of the window. None of the suggestions that come up under "Learn More" do anything useful. This is on a 6-year or so old HP Pavilion laptop running Ubuntu 20.04 with all the currently available updates and upgrades insta ...

Score: 1
kex_exchange_identification: read: Connection timed out when trying to ssh to a laptop on LAN
jp flag

So I've got a laptop running Pop! OS (20.04 LTS), I've just installed openssh-server via sudo apt-get install openssh-server and I'm attempting to SSH into it from my Windows 10 desktop PC but I get the following error:

PS C:\Users\enricojr\.ssh> ssh -vvv
OpenSSH_for_Windows_8.1p1, LibreSSL 3.0.2
debug1: Reading configuration data C:\\Users\\enricojr/.ssh/config
debug3: Failed to open f ...
Score: 0
drizzt13 avatar
tor command changed behavior
pl flag

i'm using ubuntu 20.04. i'm using the tor command for quiet some time now. when i run it, i get:

Jun 10 10:23:31.864 [notice] Tor running on Linux with Libevent 2.1.11- 
stable, OpenSSL 1.1.1f, Zlib 1.2.11, Liblzma 5.2 ...
Score: 0
Surajit A avatar
Static IP is disappearing after restart Ubuntu Server 20.04.2 : Please help
fi flag

I have a Ubuntu 20.04.2 Server version template. I have configured IP addresses, Name servers gateway4, etc. as per the process via netplan. Whenever I am deploying VM from that template and provide specific IP (using custom specs). VM is showing the correct IP while it's configured correctly for the first time. If I reboot the new VM then again it's taking the old template IP address. No clue what I am ...

Score: 0
quxinna avatar
Why do the first two digits of the hash table not collide within CRC32?
mv flag

In this Python CRC32 table look-up method, the polynomial is 0x104c11db7.

I can understand that the generated table does not collide. After all, as long as the start and end of the polynomial binary are 1, then the hash obtained by different raw data is different.

But why do the first two bits of the hash table not collide?

The first four digits of the polynomial are 0x04c1, and the binary end of

Score: 0
TravelWhere avatar
Nginx conflicting server name for reverse proxy
cn flag

I've created a reverse proxy config for my subdomain but when I ran nginx -t it gave warn [warn] conflicting server name "" on, ignored

proxy_cache_path /root/cache-proxy levels=1:2 keys_zone=pximg:10m max_size=10g inactive=7d use_temp_path=off;

server {
    listen 80;
    access_log off;

    listen 443 ssl http2;
    listen [::]:443 s ...
Score: 2
JellicleCat avatar
Gmail is blocking email from my IP
us flag

I've had a virtual private server for close to 6 months, and I'm going to start sending emails to users from My handful of email tests so far have all resulted in a bounce because of "an unsual rate of unsolicited mail originating from your IP address." That's a strange reason because it suggests that my IP address has been sending a lot of emails, not just one or two, and I did ...

Score: 0
Richard Brown avatar
Application List broken
kr flag

This was difficult to describe so I took some screenshots. The application list doesn't list all applications and also only lists a random number on 3 pages.

I can't add pictures to this post so please visit this link to see the images:

I am running Ubuntu 21.04 and Gnome 3.38.5



Score: 0
Dpkg: error processing package with sendmail-bin mailutils and sensible-mda
mx flag

I have an error when I try to install sendmail ou mailutils on Debian 9.13:

Setting up sendmail-bin (8.15.2-8+deb9u1) ...

You are doing a new install, or have erased /etc/mail/
If you've accidentaly erased /etc/mail/, check /var/backups.

I am creating a safe, default for you and you can
run sendmailconfig later if you need to change the defaults.

Failed to stop ...
Score: 1
Gagan Bansal avatar
Anydesk issue with remote connectivity
mx flag

I've got a weird issue popping up wherein any system that I use anydesk with will get to the 'Please wait for remote system to accept' screen and then once they accept my anydesk just crashes. This is consistent whether with windows or linux systems. Also, when I try and connect via a windows system to my ubuntu 20.04 system, it does the exact same thing. I have tried to use the switch sides option as w ...

Score: 0
How do I add a custom URL for node/add/{custom-content-type}?
th flag

I have a custom content type which I fill up with the help of the Forms Steps module.

I want to set custom URL for node/add/{custom-content-type}. I tried using a route subscriber and the following code.

 * {@inheritdoc}
protected function alterRoutes(RouteCollection $collection) { 
  if ($route = $collection->get('node.add_page')) {
    $current_uri = \Drupal::request()->getRequestUri();
Score: 0
Nyquillus avatar
Disk parameters for kubernetes
za flag

I'll be setting up some baremetal machines to form a k8s cluster. They each have 2 disks to be configured as RAID1, my question is what is the optimal values for stripe size, read and write policies to get the best performance?

Score: 0
Jannies - They do it for free avatar
Can I temporarily disable tracker-store and tracker-extract and tracker-miner to help save battery on my laptop?
in flag

I am really disappointed in my battery life on Kubuntu and I notice when I monitor htop, that these systemd daemons really are constantly eating cpu in the background.

enter image description here

I don't know what they do, but considering how constant they are, I wonder if I could disable them while using my battery so I can save that instead. When Plugged in, they can do what they need to do otherwise.

How can I do this?

Score: 0
How to clear last 5 ipmi sel logs when sel memory is full?
sl flag

I'm running ipmievd to send sel logs to syslog. But ipmievd will not collect and send log to syslog when sel memory is full.

Hence i would like to delete the last 5 sel logs instead of deleting entire logs.

Is there any option available to delete last few logs alone ?

expecting any command like below: ipmitool sel clear --last 5

Score: 0
Herbie avatar
Software for Ubuntu with 3018 laser
au flag

I hope you do ''t mind me asking as it is a bit a shot into the dark.... Is anyone aware of software running on Ubuntu which could drive a laser module on a prover 3018 CNC machine. I use Candle for milling, which works well. Laser Grbl is the recommended software for laser, but this isn't available for Unix. Thanks

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