Latest Ubuntu related questions

Score: 1
DCcrypto avatar
I want to know how to format and mount a drive with UnionFS
im flag

I'm having trouble figuring out how to partition and mount my drive using UnionFs as my filesystem. I think I'm missing something basic but can't make sense of it. I see some posts stating they are installing Unionfs so I may be thinking about this all wrong. May just need an explanation I understand.

Score: 1
dawnslayer avatar
How do I pkill a process and all its child processes by name?
in flag

pkill -f 'name' is not sufficient because it leaves some left-over processes in control group that ran while starting. is there any way to do this in 1 line or so?

Score: 0
Kevin Tetreault avatar
Can't ssh or ping Ubuntu Server 20.04
tj flag

I've installed Ubuntu server 20.04.02 on a Dell T3500 workstation. I also selected ssh server installation. It has an ip address 192.168.1.200 and can ping my router and google.com. I can login to ssh locally (@loalhost) on the server. But I can't ssh from my Windows pc on my local network.

ssh: connect to host 192.168.1.200 port 22: Connection timed out

Nor can I ping the Ubuntu server.

ping 192 ...
Score: 0
Will Derthick avatar
Discord stuck on "Starting..." whenever I launch
ng flag

Ive tried killing discord to no effect.

I uninstalled and reinstalled. nothing

Ive rebooted. nada

Anone have any ideas?

If I run via the terminal by just typing "discord" I get this and it opens a blank discord window

Discord 0.0.15 Quitting secondary instance. (node:11523) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buff ...

Score: 1
asb avatar
Ubuntu Mate 21.04 Hirsute boots into emergency mode after (!) installation
ru flag
asb

I am trying to set up a desktop system with Ubuntu Mate 21.04 (Hirsute). The components I bought are intentionally 'dated' because I tried to avoid immature firmware or compatibility issues due to bleeding edge hardware.

Installation from a bootable USB stick works fine, checksum of boot image is correct. Rebooted once (!) without any issues after initial installation/configuration, and updating the  ...

Score: 0
Thunder_Ruler avatar
Apple TrueTone alternative?
jp flag

Are there any alternatives to Apple’s TrueTone that works without a TrueTone sensor? (e.g. the ability to adjust the warmth of the display based on the color temperature of a room measured by a camera for example).

Score: 1
knodi avatar
Rebuilding kernel modules and replacing the .ko file causes the kernel not the boot
za flag

I rebuilt xr_usb_serial_common (changed USB support from 32 devices to 64) and placed the newly complied xr_usb_serial_common.ko in /lib/modules/5.4.0-80-generic/kernel/ubuntu/xr-usb-serial/ but when I rebooted the kernel was unable to boot.

I replaced the original xr_usb_serial_common.ko in the location and kernel booted fine.

What am I missing here?

Score: 0
Install Oracle 11.0.12 failure
mq flag
cp.

I have followed this, perfectly with no errors, "jdk-11.0.12_linux-x64_bin.tar.gz" copied to "/var/cache/oracle-jdk11-installer-local/" however when I run "sudo apt install oracle-java11-installer-local" I get the output below, and nothing is installed, still the same Ubuntu OpenJKD and when I try to show alternatives it says none. I am a Ubuntu newbie but everything is straightforward.

root@serve ...
Score: 0
Yann Monnier avatar
How can I check the performance of an AMD Radeon GPU on Ubuntu 20.04?
in flag

I want to check whether my AMD Radeon GPU performs close to the manufacturer's indicated performance.

How can I do this?

Score: 0
Artem avatar
Installing Ubuntu 21.04 with LVM on LUKS2 with integrity check returns errors when generating initramfs
br flag

TL;DR: I'm unable to generate initramfs after encrypting volumes with LUKS2 with integrity option and LVM on top of those volumes:

cryptsetup: ERROR: first: Source mismatch
cryptsetup: WARNING: target 'first_dif' not found in /etc/crypttab
cryptsetup: ERROR: second: Source mismatch
cryptsetup: WARNING: target 'second_dif' not found in /etc/crypttab
cryptsetup: WARNING: Couldn't determine cipher mod ...
Score: 0
An Ignorant Wanderer avatar
Install specific package version Ubuntu in a similar way to pip
za flag

This question has been asked previously here and here, but my question is slightly different. In particular, let's say I want to install the same git version on a machine as my machine. I first run sudo apt-cache policy git, which gives me:

  Installed: 1:2.32.0-1~ppa0~ubuntu20.04.1
  Candidate: 1:2.32.0-1~ppa0~ubuntu20.04.1
  Version table:
 *** 1:2.32.0-1~ppa0~ubuntu20.04.1 500
        500 http:/ ...
Score: 0
Danny Coulombe avatar
How to connect multiple Bluetooth headsets at the same time?
tr flag

My girlfriend and I like to watch movies outside, but it's very noisy so we prefer to use headsets. We would like to watch movies using two different Bluetooth headsets. Both work individually on my Ubuntu 20.04 machine, but I'm pretty sure there's a way to hack Pulseaudio or something in order to have the same output on these two devices at the same time.

I found this Ask Ubuntu answer and it so ...

Score: 0
Paul McKinney avatar
Ubuntu 21.04 dual boot on iMac BigSur Wireless Device not supported
ru flag

I have Ubuntu 21.04 and MacOS BigSur setup to dual boot. Using ioreg -l | grep RequestedFiles, I have obtained my MacOS driver information.

"RequestedFiles" = ({
"Firmware"="C-4364__s-B2/nihau.trx",
"TxCap"="C-4364__s-B2/nihau-X0.txcb",
"Regulatory"="C-4364__s-B2/nihau-X0.clmb","NVRAM"="C-4364__s-B2/P-nihau-X0_M-HRPN_V-m__m-7.7.txt"})'

I copied these files and renamed them accordingly in my Ubuntu ...

Score: 1
James A avatar
Ubuntu 20.04.1: Wi-Fi stays connected but intermittently loses network access
cn flag

Originally the Wi-Fi was nigh unusable, but I've gotten it to a somewhat working state. Here's what I've done so far:

  • Downloaded the "Hardware Support for Dell Precision 5500" update (fixed the network speed)
  • Disabled power management on the Wi-Fi card
  • Disabled IPv6
  • Checked for drivers on Dell's site based on the service tag, they don't offer anything

The network itself is fine, no other devices are ...

Score: 0
WinterSoldier avatar
WiFi interface does not starts on boot
ar flag

I was toying around with hostapd and I don't know what I did but now on rebooting my wifi is not starting. ifconfig shows all the interfaces but the wlan0.
Right now I am using a workaround by running : sudo iw phy phy0 interface add wlan0 type managed everytime I boot.
How can I fix this?

Score: 1
Preseed file for unattended Ubuntu installtion not read by the installer
cn flag

I have written a path to a preseed file for an unattended installation of linux. As you can see in the grub parameters, I have specified file=/preseed.cfg and the content includes some d-i commands. Next, an ISO file is created.

u@n:u2$ cat ./boot/grub/grub.cfg
if loadfont /boot/grub/font.pf2 ; then
        set gfxmode=auto
        insmod efi_gop
        insmod efi_uga
        insmod gfxterm
        te ...

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