Tag Archives: ubuntu

Fixing grub error about unsigned kernel in Ubuntu

Posted on Tuesday 23 April 2019 by J. D. Bartlett

Just a quick note in case someone else runs into the same issue as me: I have a machine running Ubuntu 18.04 (LTS), and in order to get some of the hardware working, I used ukuu to upgrade the kernel … Continue reading →

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Ubuntu on a ThinkPad Helix (x86 Tablet/Convertible)

Posted on Thursday 17 September 2015 by J. D. Bartlett

I’m looking for a new tablet. Over the past few days I’ve had the chance to play around with a ThinkPad Helix. The Helix comes with Windows 8, but naturally, I installed Ubuntu to see how it works on a touch device. Here are my findings. Continue reading →

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Ubuntu: GPG public key not available during apt-get update

Posted on Monday 7 September 2015 by J. D. Bartlett

I have recently had a problem where apt-get update complained with errors like this (but more of them): W: GPG error: http://mirror.internode.on.net utopic Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32 … Continue reading →

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Again: Broadcom Wireless BCM43224, Ubuntu

Posted on Monday 6 February 2012 by J. D. Bartlett

Update 2013-02-27: This solution on Ask Ubuntu is much better, because it includes properly packaged things that should update when you upgrade Ubuntu. Update 2012-10-24: The patch is no longer available on Broadcom’s website, but it can be found here. … Continue reading →

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Unity Launcher/Sidebar Missing on Ubuntu 11.10

Posted on Monday 7 November 2011 by J. D. Bartlett

As I mentioned previously, I recently installed Ubuntu 11.10 on a new laptop. Then Unity stopped working. And so did Unity 2D. This is a problem, since those are the only two desktop sessions installed by default with the latest … Continue reading →

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