Latest Ubuntu related questions

Score: 1
Nicholas Saunders avatar
flatpak calibre: Cannot read from /home/nicholas/in.epub (permissions?)
mx flag

Looking to convert an epub to mobi with calibre:

nicholas@gondor:~/ebooks$ 
nicholas@gondor:~/ebooks$ flatpak --command="sh" run com.calibre_ebook.calibre -c "ebook-convert ~/in.epub ~/out.mobi"
Cannot read from /home/nicholas/in.epub
nicholas@gondor:~/ebooks$ 
nicholas@gondor:~/ebooks$ ll
total 1200
drwxrwxr-x  2 nicholas nicholas    4096 Jul 18 13:43 ./
drwxr-xr-x 28 nicholas nicholas    4096 Jul 1 ...
Score: 0
yal avatar
configuring two network interfaces on ubuntu 20.04
ma flag
yal

First a bit of background on the problem, I'm trying to create a dynamic malware analysis lab so I'm running inetsim on this ubuntu vm and I have a couple of other vm's on the internal network settings of virtualbox.

Now I'm trying to add regular internet connectivity to this machine (the malware is running on the machines connected to this one and not on this one) but it's not working. I can pin ...

Score: 0
Ubuntu 20.04 boots to BusyBox, fsck not found (Persistent USB)
cz flag

I did a persistent install of Ubuntu 20.04 on my USB, and until now it had been working fine. However, last night my laptop died and the shutdown process failed, so I just force shut it down and unplugged the USB. The next morning, I attempt to boot up Ubuntu and am greeted with initramfs booting up instead.

I've done some reading on the common solutions, but here is where things are a little weird for  ...

Score: 0
user3866319 avatar
New MySQL install has no root password, and can't set one
cn flag

Just installed MySQL 8 on ubuntu server 20.04.

I can login with mysql -u root, but no matter how I try to set a root password, when I login again it doesn't ask for password.

Does passwords need to be enabled somehow?

tried: ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyN3wP4ssw0rd'; flush privileges;

it completed ok, but no password is enabled.

tried: UPDATE mysql.user SET password=PASSWORD("my-n ...

Score: 0
Lid switch bouncing for ThinkPad laptop Ubuntu 18.04
br flag

I have a Lenovo Thinkpad T540p with Ubuntu 18.04 and when I manually suspend the laptop & then close the lid, the laptop actually resumes. Looking through the side of the lid, I can see the screen flickering.

Running journalctl -u systemd-logind.service I can see the following:

 iul 18 20:36:08 vt-thinkpad systemd-logind[966]: Lid closed.
 iul 18 20:36:08 vt-thinkpad systemd-logind[966]: Lid op ...
Score: 0
Sturmkater avatar
Nat routing from static IP trow VPN not working
in flag

I try to rout traffic coming from 185.220.xxx.xxx:53 on interface ppp0 to 192.168.1.2:53 on interface ens3. I think something wrong with my settings.

# NAT table rules
*nat
:PREROUTING ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
-F
# Port Forwardings
-A PREROUTING -i ppp0 -p udp -d 185.220.xxx.xxx --dport 53 -j DNAT --to-destination 192.168.1.2:53

# Forward traffic through eth0 - Change to match you ou ...
Score: 0
Is there a utility to monitor memory for processes over time?
cn flag

This question has been asked in different ways over time. Specifically, given current versions, I'd like to chart memory usage of processes over time, ideally in comparison with other processes.

Use case: With regular updates I'll reboot my Ubuntu systems once every couple weeks - a required process for which Linux fans used to mock Windows users. If I don't restart for maybe three weeks or a mon ...

Score: 0
BabaG avatar
ubuntu studio install /boot to another drive?
cn flag

i have run ubuntu studio for quite some time on an older ssd and want to try it on a new nvme ssd. problem is that my mobo is legacy and cannot see the nvme. i've successfully tried an install of manjaro on the nvme and thought i'd like to try ubuntu studio now.

manjaro makes it very easy to install the /boot directory and files to an alternate location, providing a checkbox that activates a drop ...

Score: 2
Dave avatar
How to unlock screensaver over ssh on ubuntu 21.04?
tr flag

I want to unlock the black screen over ssh (screensaver). I have a desktop ubuntu 21.04 and I want to log into this via ssh and unlock the screensaver. I tried xdotool in a script:

#!/bin/bash
export DISPLAY=:0
xdotool type "1234"

and also ydotool:

#!/bin/bash
export DISPLAY=:0
ydotool type "1234"

xdotool does nothing and with ydotool i get an error ( ydotool: notice: ydotoold backend unavailable (m ...

Score: 2
Tyler Kovach avatar
Issue starting Ubuntu from Grub on 20.10
vn flag

I have an Ubuntu 20.10 system in a dualboot with Windows 10. It has been working for about the past 8 months, but suddenly today it no longer boots from Grub. Immediately after selecting Ubuntu from the drop down menu my laptop switches to an illuminated but black screen and sits there forever. My laptop is a Lenovo Yoga 720 15". The longest I let it sit without powering it off was 30 minutes. I tried t ...

Score: 2
Ralff avatar
I am only able to access backup hardrive using sudo nautilus
gb flag

I have a backup harddrive on my computer, and after install Ubuntu 18.04, if I click my backup harddrive in nautilus, I get the error message

Could not display "Backup 1.6TB". The file is of an unknown type.

The harddrive is named "Backup 1.6TB" by the way. However, if I launch nautilus as sudo (e.g., sudo nautilus), then I click the hardrive, I am able to open the harddrive and edit or add files. ...

Score: 1
John King avatar
missing "restore missing files" option
tr flag

I want to restore files that I accidentally removed from my computer.

I use ubuntu 20.04 as my OS, Files (3.36.3-stable) as the file manager, and Déjà Dup Backup Tool (40.7) as the backup program

The Help for Déjà Dup Backup Tool says that in order to restore missing files:

Backup Help › Restoring Files » Restoring a Lost File Browse to the folder containing the file you lost. Click File ▸ ...

Score: 1
Arlene B avatar
duplicate icons and probably duplicate application installations
cn flag

After upgrading to 21.04, I now show two Firefox and two Thunderbird icons on my apps and it seems that I can't close Thunderbird even after closing out the window. When I use thunderbird, there is a dot when the app is open, and then there is a dot if I open an email (showing two dots). But now, with these duplicate icons (and likely duplicate apps) I cannot close thunderbird, and then I cannot open it ...

Score: 1
inu avatar
Ubuntu Dual Monitor problem black screen second monitor
az flag
inu

The first monitor displays images, but the second one stays black.
They both show as active, but one of them refuses to display anything.
But screen-shot is showing that the second monitor is working.
The monitor is working perfect in Windows as dual monitor setup.

Every time I try to open setting, the setting window opens on the the second monitor which is all black, so I can't change any setting since  ...

Score: 0
Temjin Leow avatar
Can I upgrade my Ubuntu 16.04 LTS Server to 18.04 LTS using ISO file without losing my data?
us flag

I have done quite a lot of research on upgrading my existing 16.04 LTS Server to 18.04 LTS using the ISO file. My Server does not connect to the internet. Thus I am finding the alternative to upgrade to 18.04 LTS. But still, I can't find the latest procedure on how to upgrade using the ISO file.

I did found out the ancient method which using these steps

  • sudo mkdir -p /media/cdrom
  • sudo mount -o loop ~/Des ...
Score: 0
Swomp avatar
Problem when i trying to install amdgpu drivers
ru flag

I have this problem when I try to install amdgpu

errors occurred while processing the following packets:
amdgpu-dkms
amdgpu
E:Sub-process /usr/bin/dpkg returned an error code (1)

But drivers are installed and working. What I must do?

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