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Kernel Upgrades?

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adamworth
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Kernel Upgrades?

Thu Apr 19, 2018 3:08 am
Hi. I'm new to KDE Neon, and I like it very much! I have tried to search for this information, but I cannot find the answer. I've been using Antergos OS with KDE, and they have the newest LTS Kernel and the latest/greatest. I see that KDE Neon uses Ubuntu 16.04 LTS as the base, but I was curious if the newer kernels were available and I'm just not seeing where to download them. My system shows I'm using 4.13.0-38-generic. Or, should I just wait and see if 18.04 will have the newer kernels?

TIA, and great job with this OS!

AW
ik.kde
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Re: Kernel Upgrades?  Topic is solved

Thu Apr 19, 2018 6:15 am
Welcome to KDE Neon community :)

You should run following commands in konsole.

To list kernels available on Ubuntu/Neon
Code: Select all
apt search linux-image

Latest kernels:
Code: Select all
apt search linux-image | grep edge


To install the latest kernel:
Code: Select all
sudo apt install linux-image-generic-hwe-16.04-edge linux-headers-generic-hwe-16.04-edge

This will ensure you have latest Ubuntu kernel available. 4.15.0.13.39 as of today.
adamworth
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Re: Kernel Upgrades?

Thu Apr 19, 2018 6:24 pm
ik.kde wrote:Welcome to KDE Neon community :)

You should run following commands in konsole.

To list kernels available on Ubuntu/Neon
Code: Select all
apt search linux-image

Latest kernels:
Code: Select all
apt search linux-image | grep edge


To install the latest kernel:
Code: Select all
sudo apt install linux-image-generic-hwe-16.04-edge linux-headers-generic-hwe-16.04-edge

This will ensure you have latest Ubuntu kernel available. 4.15.0.13.39 as of today.


Thank you very much! This worked, and I'm using the new kernel. However, my WiFi doesn't seem to work. I have a Broadcom43 chipset. Under Ubuntu (Gnome) and even in Antergos, there were drivers in the repositories to install. I can't seem to find them in Discovery. I apologize, but I'm not sure how to find this in KDE.

And, this isn't subjective; my system is running much faster with the newer kernel! And, even web pages using Ethernet are nearly instantaneous! Amazing!
adamworth
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OS

Re: Kernel Upgrades?

Thu Apr 19, 2018 6:49 pm
adamworth wrote:
ik.kde wrote:Welcome to KDE Neon community :)

You should run following commands in konsole.

To list kernels available on Ubuntu/Neon
Code: Select all
apt search linux-image

Latest kernels:
Code: Select all
apt search linux-image | grep edge


To install the latest kernel:
Code: Select all
sudo apt install linux-image-generic-hwe-16.04-edge linux-headers-generic-hwe-16.04-edge

This will ensure you have latest Ubuntu kernel available. 4.15.0.13.39 as of today.


Thank you very much! This worked, and I'm using the new kernel. However, my WiFi doesn't seem to work. I have a Broadcom43 chipset. Under Ubuntu (Gnome) and even in Antergos, there were drivers in the repositories to install. I can't seem to find them in Discovery. I apologize, but I'm not sure how to find this in KDE.

And, this isn't subjective; my system is running much faster with the newer kernel! And, even web pages using Ethernet are nearly instantaneous! Amazing!


I found the answer! It was located here at:

viewtopic.php?f=18&t=141771&p=381110&hilit=broadcom#p381110

Thanks everyone for the help!!! Very nice!
bakkered
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Re: Kernel Upgrades for KDE Neon Plasma 5.13.3? -> 4.16.00 now.. 21st June 2018 now...

Hey Guys,

Just managed to install succesfully kernel 4.16.00 on my KDE Neon Plasma 5.13.3.
Am searching if any more recent kernel will work; somewhere in 4.17 or 4.18 but it's hard to find on the internet....
Has to do with Spectre-Meltdown as well I suppose?! ... Am checking, things are improving; only got still:

:Spectre and Meltdown mitigation detection tool v0.37

Checking for vulnerabilities on current system
Kernel is Linux 4.16.0-041600-generic #201804012230 SMP Sun Apr 1 22:31:39 UTC 2018 x86_64
CPU is Intel(R) Core(TM) i7-7567U CPU @ 3.50GHz

Hardware check
* Hardware support (CPU microcode) for mitigation techniques
* Indirect Branch Restricted Speculation (IBRS)
* SPEC_CTRL MSR is available: YES
* CPU indicates IBRS capability: YES (SPEC_CTRL feature bit)
* Indirect Branch Prediction Barrier (IBPB)
* PRED_CMD MSR is available: YES
* CPU indicates IBPB capability: YES (SPEC_CTRL feature bit)
* Single Thread Indirect Branch Predictors (STIBP)
* SPEC_CTRL MSR is available: YES
* CPU indicates STIBP capability: YES (Intel STIBP feature bit)
* Enhanced IBRS (IBRS_ALL)
* CPU indicates ARCH_CAPABILITIES MSR availability: NO
* ARCH_CAPABILITIES MSR advertises IBRS_ALL capability: NO
* CPU explicitly indicates not being vulnerable to Meltdown (RDCL_NO): NO
* CPU microcode is known to cause stability problems: NO (model 142 stepping 9 ucode 0x84 cpuid 0x806e9)
* CPU vulnerability to the three speculative execution attack variants
* Vulnerable to Variant 1: YES
* Vulnerable to Variant 2: YES
* Vulnerable to Variant 3: YES

The rest is patched ok:
CVE-2017-5753 [bounds check bypass] aka 'Spectre Variant 1'
CVE-2017-5715 [branch target injection] aka 'Spectre Variant 2'
CVE-2017-5754 [rogue data cache load] aka 'Meltdown' aka 'Variant 3'

If anybody has a hint / tip to a more recent kernel, just pass it on please!
Thanks!
;)


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