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Development Linux Ubuntu

Why is livepatch not available for ubuntu raspberry pi image?

ubuntu@ubuntu:~$ sudo ua status Account: XXXXXX@xxxx.com Subscription: XXXXXX@xxxx.com SERVICE cc-eal entitled n/a cis-audit none n/a esm none n/a fips entitled n/a fips-updates entitled n/a livepatch entitled n/a Enable entitlements with ua enable <service> ubuntu@ubuntu:~$ sudo ua enable livepatch One moment, checking your subscription first Livepatch is not available for platform aarch64. Supported platforms are: x86_64 […]

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Development Linux Ubuntu

VM Virtual box Ubuntu Session Failed

I installed VM VirtualBox 6.1.2 and updated all the packages in Ubuntu. I also got the ISO file: ubuntu-18.04.3-desktop-amd64 Plugged it all in, enabled Virtual technology in BIOS setup using my WIN 10 Laptop. And after all, I ended up getting this error: Failed to Open a session for the virtual machine Ubuntu. VMMR0_DO_NEM_INIT_VM failed: […]

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Development Linux Ubuntu

Limiting ram usage of a program

Is there an easy way to limit the ram consumption of a specific program? I have a program that generates a really big file, up to 1 gb and it causes my whole laptop to freeze up. I want to limit the ram usage of the program so it doesn’t freeze.

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Development Linux Ubuntu

How do I fix two finger scroll on the Lenovo X1 Carbon (3rd Gen) touchpad?

The touchpad on the Lenovo X1 Carbon (3rd Gen) is supposed to support two-finger scroll. However even after enabling it the two-finger scroll support is broken and using two fingers has no additional effect.

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Development Linux Ubuntu

Remmina successfully connects but window closes

I’m trying to connect from my local ubuntu 18.04 with remmina installed to my remote ubuntu 19.04 where I installed the xrdp server. It is able to perform the login, but as soon as it tries to open the window with the remote desktop, the window suddenly closes. I can’t understand why this is happening […]

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Development System & Network

single sim card (using mobile intenrnet) cannot access our router from WAN side

going mad with this. Setting up OpenVPN but one mobile phone gives me trouble. I tried to boil it down to this Situation: I have a simple port 80 open on my router (OpenWRT) and forwarded to server in our lan serving simple static html page. What does not work: accessing it by http://xxx.xxx.xxx.xxx:80 (where […]

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Development Linux Ubuntu

Blender wont launch on fresh install of Ubuntu Studio

I have just done a fresh install of Ubuntu Studio. I have done all updates. However some software will not start. Blender is one of these. When I go to ‘Software’ three versions of Blender show up, one stating installed. I’ve removed and then reinstalled but still wont start 🙁

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Development System & Network

scl enable devtoolset-7 dosn’t do anything

I have a relatively old server with CentOS 6 on it. The default gcc is 4.4.7 but after some googling, I found I can update this via devtoolset-7. I installed devtoolset-7 via root (i.e. sudo -i), and it installed okay. Then I did scl enable devtoolkit-7 bash but it dosn’t seem to do anything. [affan@abm-lab […]

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Development Linux Ubuntu

How to restore a degraded drive back into a zpool?

I had an issue with my zpool – the dev id changed and one of the drives dropped out as degraded. I’ve exported the pool and reimported using this command: zpool import -d /dev/disk/by-id zpool_primary The status now appears as: root@gomez:/home/nick# zpool status pool: zpool_primary state: DEGRADED status: One or more devices has been taken […]

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Development System & Network

OpenSSL – Output PEM encoded part only when signing a certificate request

I’ve set up my own Certificate Authority based on a Debian 10 system and I can successfully sign certificates. But when I do so by using the command openssl ca -in /root/ca/certreqs/domain.tld.csr -out /root/ca/certs/domain.tld.crt, I’m getting a certificate file that includes both normal text as well as a PEM-encoded part. This file’s content starts with: […]