I have a CSV file with one worksheet. After editing with Libre Office, I saved it and opened it with Libre Office again. I created a new sheet in the Libre Office. I saved it and opened it with Sublime Text. I couldn't see the data from both sheets. Still, I edited in Sublime Text and saved the ...

After installing mailutils on ubuntu 18.04 $sudo apt-get install mailutils I try to send email manually on CLI $mail -s test To: [email protected] Cc: then.... what should I do????

I know this is a dumb question,but,for some reason the Get New Plugins button isn't appearing on Configure Desktop Wallpapers Menu.It would be quite useful not to install those Plugins using the Terminal,even though that's still quite fast.If anybody could please help me,thank you!

I am project to be monitored by Nagios. Project is located in AWS EC2. Now I want to monitor from Nagios placed in outside server. Service monitoring works,but host monitoring is impossible. How can I check? define host { use linux-server host_name ...

It shows that there is "invalid settings detected " I need an answer to solve that error to get the ok button on the virtual box to start

I'm running elementary OS (based on Ubuntu) and I've had this same problem also when running Ubuntu. Basically it just takes a hell of a long time to boot into the Linux system while booting into Windows is almost instant. Ryzen 7 1700 ASUS x370 prime PRO 16GB G.Skill Trident Z, unsure what mod...

On my server I use the Plesk control panel, I use the server from Hetzner Cloud. The problem is that when I try to install redis according to the instructions for the panel - https://ontwerps.nl/install-redis-with-plesk-onyx, in the end I get an error: This systems seems to use systemd. Please t...

I've got a brand new Ubuntu 20.04 machine built out which is using a mdadm RAID5 configuration (3x 10TB). The system was working great all week but is now throwing an error when I log in. I can see from systemctl that the mdcheck_start service has failed. I can also see from checking the servic...

I am trying to diagnose why my raid6 array of 20 hard drives stopped working on my ubuntu installation. I noticed that when I tried to force it to start, several drives simply stopped being listed in the raid, and as drives at all on my computer. I thought it was a hardware problem and opened u...

I have several computers connected to a single monitor using a KVM switch. When machine A is selected on the switch, I switch off the internal screen using xrandr. When I switch to machine B, the internal screen remains off. However, when switching back from B to A, Ubuntu switches on the interna...

In my Mint18, I have installed initscripts using apt-get command so that I can use usleep [time] in a bash script. However, I get the error usleep: command not found. I reinstalled initscripts using sudo apt-get install --reinstall initscripts but still nothing happens. When I type whereis usle...

I'm having issues using my Sony WH-1000MX3 Bluetooth headset with my beloved Ubuntu 18.04. Ubuntu does not seem to be able to use the headset as a handsfree (which would be useful with all the video-calls going on). The problem is partially solved, as I'm able to use the headset for audio output,...

I’ll just try to explain my situation as best as I possibly can. First I boot up my computer and hold shift quickly after, I enter the “grub menu”? And select advanced options for ubuntu, from there I enter the recovery mode menu; but I can only highlight the resume and system summary options. Al...

I tried removing virtualbox and it displayed a error dpkg --remove virtualbox-6.1 (Reading database ... 219358 files and directories currently installed.) Removing virtualbox-6.1 (6.1.6-137129~Ubuntu~xenial) ... debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another proc...