Latest Ubuntu related questions

Score: 1
w2vy avatar
Add RAID 1 pair to running system 21.04 with UEFI boot
us flag

I find many answers to this question for Ubuntu 12 and 14, but with EFI partitions things have changed a bit. Actually using those guides I do have an older system running RAID1 but I have run into trouble, well speed bumps.

The older RAID system had my backup and nextcloud data, which I have moved to the new system, recreated raid and copied.

This is what I have running right now:

Device         Start   ...
Score: 0
user3704712 avatar
Ubuntu 20.04 system does not wake up after suspend or just keep open for long time
cn flag

I have been using Ubuntu for many years but the current version 20.04 giving me the most headache. A few days back after suspending the system for 2-3 hours, the whole battery was drained. Then I change the grub from s2idle to deep sleep and it rectified the issue. Now, what is happening is that after suspending the computer (closing the lid), it wakes up but the screen is always black and no key works. ...

Score: 0
Adam Obaidi avatar
LibInput not working after upgrading to Ubuntu 21.04
cn flag

Today I have upgraded my Ubuntu from 20.0.4 , with installed libinput-gestures. After successfully upgrading, and have no issue so far, apart of libinput-gestures stopped working! Any ideas that could help me? I appreciate your help guys. Thanks

Score: -1
partizanos avatar
How to select a specific subsysmtem on WSL?
in flag

Hello I have the following installations on my WSL. I want to 1)select and 2) update the following subsystem: Ubuntu-18.04 enter image description here

Update:

  1. I can run wsl -s Ubuntu-18.04 to select some release
Score: 0
Edis Alijevic avatar
Wireless connection problem for new users
kz flag

I am a new user with Ubuntu OS, so my problem is with the wireless connection, and I know it is a common problem but I can not resolve it. I tried many solutions from forums, but it did not work. What should I do? I checked for the drivers and they are all updated.I use Ubuntu 20.04 Desktop, and my device is Dell Latitude E7450. The problem is that the wi-fi is very slow on the laptop but on the mobile  ...

Score: 0
pavithra krishna avatar
Serial connection between 2 guest virtual box VMs using vagrant
cg flag

I am currently testing the kernel inside the Master VM(Virtual Box) and I am looking for a way to establish a serial connection in order to redirect the dmesgs between the Master and the Slave(which is the monitor). I have found a method that involves changing the settings in Virtual Box (https://www.howtoforge.com/how-to-set-up-a-serial-port-between-two-virtual-machines-in-virtualbox)

However, I am lo ...

Score: 0
MAHELI PAUL avatar
How do I remove HHMMSS from a filename in Linux/Unix?
cn flag

I have a filename mahelipaul_YYYYMMDDHHMMSS, I need to remove HHMMSS part from the file and assign it to a new variable.

I need file as mahelipaul_YYYYMMDD. How can I do it?

Score: 0
Wifi not working with Kubuntu 21.04 on Lenovo Thinkpad L15 Gen2 AMD
ca flag

Since Lenovo last year, 2020 summer, announced that they officially support Ubuntu with many of their models I dared to buy Lenovo Thinkpad L15 Gen2 AMD with the hope that I will avoid exactly this situation... However unluckily the wifi adapter is not working... :( Do you have tipps for me? Thank you!

https://news.lenovo.com/pressroom/press-releases/lenovo-launches-linux-ready-thinkpad-and-thinkstati ...

Score: 1
How to use cpan command to install downloaded perl module (.tar.gz file)
pk flag

I want to install Sys::RunAlone. I'm not able to install cpanm due to other independent reason, with which I was able to give the downloaded Sys::RunAlone compressed file directly and it installed. In case of cpan I've seen readme https://www.cpan.org/modules/by-module/CPAN/CPAN-2.25.readme where it shows how to install in a prompt, so I'm assuming there should be some way I should be able to ins ...

Score: 0
pedda avatar
Ubuntu 20.04: Cannot print double sided from evince any more
cn flag

[EDIT] So it works with the below Libre Office printer dialog, while it is not working with the standard printing dialogue from Ubuntu. Does anyone know about this behavior?

I have a Canon Pixma mx920 inkjet printer. Whenever I try duplex printing in evince, There's only one option, one-sided printing. (The drag down menu doesn't work)

enter image description here

Sometimes at first approach, standard printing dialog in Thund ...

Score: 1
Jano avatar
Accidentally deleted /bin on Ubuntu 16.04
de flag

I deleted /bin folder on Ubuntu 16.04 by mistake. There was a folder named bin in home folder and I deleted /bin folder instead ~/bin folder in home folder. Unfortunately, when I restarted my PC, it didn't boot.

I have important files in home folder and the home folder it is not in separate partition from OS. Is upgrading the system to a newer version via bootable USB flash useful to solve this problem?

Score: 0
user638311 avatar
Prevent USB HDD from spindown
us flag

I am fairly new to Linux (Ubuntu 20.04) and I am in need of a little assistance.

I am looking for a way to prevent my USB HDDs from spinning down, because they are fairly old and slow and it really takes them a while to to open and access the files inside which is really annoying. I have a few connected via USB hub to a single USB port on my PC.

I need some sort of script or a crontab that runs peri ...

Score: 1
Barmaglot avatar
Ubuntu 20.04 LTS sssd update from 2.2.3-3ubuntu0.4 to 2.2.3-3ubuntu0.6 broke AD logins
in flag

I have a number of servers running Ubuntu 20.04 LTS joined to Windows Active Directory via this procedure - https://www.server-world.info/en/note?os=Ubuntu_20.04&p=realmd

Over this weekend, I ran a round of updates that included upgrading the sssd package from version 2.2.3-3ubuntu0.4 to 2.2.3-3ubuntu0.6, and after that update, none of the AD users were able to log on. The following was recorded on  ...

Score: 0
AliReza NaSRi avatar
Can I change curtin fstype to xfs instead of default ext4?
gb flag

I want to change default behavior of filesystem on maas auto deployment virtual machine to something like xfs rather than default ext4 but it seems to me it is not possible.

according to curtin documentation it says the following statement :

fstype:<filesystem type: one of [‘ext3’, ‘ext4’], defaults to ‘ext4’>

so here my question that means I cannot choose any other filesystem other t ...

Score: 0
robotertheman avatar
DNS resolution error (Xubuntu 20.04)
pk flag

I have tried just about everything I found on these forums. My computer on Xubuntu cannot browse the internet normally, but can ping addresses like 8.8.8.8 and 1.1.1.1, and also other computers on my network. I haven't updated anything and cannot remember installing any software which may have interfered with the DNS.

I've edited the resolv.conf directly, adding the Google DNS server but it only  ...

Score: 4
j0h avatar
Discord, how can I make it stop flooding my logs?
au flag
j0h

I am on ubuntu 20.04 focal, and I have discord installed. While discord is active, I get loads of messages in dmesg from it.

[ 1242.218055] audit: type=1400 audit(1626585289.753:15781): apparmor="DENIED" operation="ptrace" profile="snap.discord.discord" pid=2211 comm="Discord" requested_mask="read" denied_mask="read" peer="unconfined"
[ 1252.208904] kauditd_printk_skb: 109 callbacks suppressed
[ 12 ...

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