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Latest Ubuntu (Meltdown/Spectre ) updates break my PC


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#1 NickAu

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Posted 09 January 2018 - 08:55 PM

Hi

 

I just got the latest updates for Ubuntu and after installing them I found my PC wouldn't boot, after fixing that I had to select a different kernel and my PC booted.

description: CPU
          product: Intel(R) Core(TM) i5-4460  CPU @ 3.20GHz
          vendor: Intel Corp.
          physical id: 3d
          bus info: cpu@0
          version: Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz
          slot: SOCKET 0
          size: 3383MHz
          capacity: 3800MHz
          width: 64 bits

These are the updates I got

nick@nick-MS-7817:~$ cat /var/log/dpkg.log | grep "\ install\ "
2018-01-05 06:57:20 install libdrm-common:all <none> 2.4.83-1~16.04.1
2018-01-05 06:57:22 install libllvm5.0:amd64 <none> 1:5.0-3~16.04.1
2018-01-07 21:16:34 install libxnvctrl0:amd64 <none> 361.42-0ubuntu1
2018-01-07 21:16:35 install conky-all:amd64 <none> 1.10.1-3
2018-01-10 11:42:03 install linux-image-4.4.0-108-generic:amd64 <none> 4.4.0-108.131
2018-01-10 11:42:06 install linux-image-extra-4.4.0-108-generic:amd64 <none> 4.4.0-108.131
2018-01-10 11:42:11 install linux-headers-4.4.0-108:all <none> 4.4.0-108.131
2018-01-10 11:42:15 install linux-headers-4.4.0-108-generic:amd64 <none> 4.4.0-108.131

Kernels on my PC

nick@nick-MS-7817:~$ dpkg --list | grep linux-image
ii  linux-image-3.16.0-30-generic                         3.16.0-30.40~14.04.1                         amd64        Linux kernel image for version 3.16.0 on 64 bit x86 SMP
ii  linux-image-3.16.0-77-generic                         3.16.0-77.99~14.04.1                         amd64        Linux kernel image for version 3.16.0 on 64 bit x86 SMP
ii  linux-image-4.4.0-101-generic                         4.4.0-101.124                                amd64        Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii  linux-image-4.4.0-103-generic                         4.4.0-103.126                                amd64        Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii  linux-image-4.4.0-104-generic                         4.4.0-104.127                                amd64        Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii  linux-image-4.4.0-108-generic                         4.4.0-108.131                                amd64        Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii  linux-image-4.4.0-98-generic                          4.4.0-98.121                                 amd64        Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii  linux-image-extra-3.16.0-30-generic                   3.16.0-30.40~14.04.1                         amd64        Linux kernel extra modules for version 3.16.0 on 64 bit x86 SMP
ii  linux-image-extra-3.16.0-77-generic                   3.16.0-77.99~14.04.1                         amd64        Linux kernel extra modules for version 3.16.0 on 64 bit x86 SMP
ii  linux-image-extra-4.4.0-101-generic                   4.4.0-101.124                                amd64        Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii  linux-image-extra-4.4.0-103-generic                   4.4.0-103.126                                amd64        Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii  linux-image-extra-4.4.0-104-generic                   4.4.0-104.127                                amd64        Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii  linux-image-extra-4.4.0-108-generic                   4.4.0-108.131                                amd64        Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii  linux-image-extra-4.4.0-98-generic                    4.4.0-98.121                                 amd64        Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii  linux-image-generic                                   4.4.0.108.113                                amd64        Generic Linux kernel image
ii  linux-image-generic-lts-utopic                        4.4.0.108.113                                amd64        Generic Linux kernel image (dummy transitional package)
ii  linux-image-generic-lts-xenial                        4.4.0.108.113                                amd64        Generic Linux kernel image (dummy transitional package)

This is the new kernel I couldn't boot from.

linux-image-4.4.0-108-generic                         4.4.0-108.131 

This is the kernel Im running at the moment.

linux-image-4.4.0-104-generic 

The quick fix.

 

Boot into a live session of Ubuntu open terminal and install boot repair

sudo add-apt-repository ppa:yannubuntu/boot-repair
sudo apt-get update
sudo apt-get install -y boot-repair && boot-repair

And run recommended repair, reboot your PC and and select another kernel.

 

Now I have to clean this mess up, Kinda reminds me of Windows updates.


Edited by NickAu, 09 January 2018 - 09:44 PM.

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#2 JohnC_21

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Posted 09 January 2018 - 09:26 PM

Nick, are you running 16.04?

 

https://ubuntuforums.org/showthread.php?t=2382157



#3 NickAu

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Posted 09 January 2018 - 09:36 PM

Yes John.


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#4 pcpunk

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Posted 10 January 2018 - 01:40 AM

Probably don't have to worry about that in Mint?  I just Updated and all is fine.  

ii  linux-image-3.13.0-37-generic               3.13.0-37.64                                      amd64        Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii  linux-image-extra-3.13.0-37-generic         3.13.0-37.64                                      amd64        Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP


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#5 NickAu

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Posted 10 January 2018 - 01:52 AM

Thats an old kernel PC.

 

 Linux Mint 18.1 Xfce has the same problem with kernel 4.4.0-108


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#6 MadmanRB

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Posted 10 January 2018 - 10:29 AM

Well at least you can roll back with linux, windows users are kind of boned unless they do system restore a big pain in the gluteous maximus 


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#7 pcpunk

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Posted 10 January 2018 - 10:56 AM

Thats an old kernel PC.

 

 Linux Mint 18.1 Xfce has the same problem with kernel 4.4.0-108

Yes I know, just wanted to report what I was seeing while I was in Linux Mint KDE-17.1.

 

I see this from LINUXMINT  Blog.

 

I don't quite understand the numbering though.  I don't see this Exact Kernel Update in my Linux Kernels>Update Manager:

3.13 series (Linux Mint 17 LTS): patched in 3.13.0-139

 

I do see this in the Level 5 Options today: 3.13.0-139-188 among two others that look like what is needed, included in the pic below:

 

But don't see specifically at Mint if this is what I need? Arrrrgggg, not like linux devs to make things Unclear is it?  I'll wait to see if someone can advise me, or work on it later myself.  Why don't they tell us this at the blog, in clear WORDS!   

 

Is 3.13.0-139-188 what they expect me to install? and if so shouldn't they just freaking say that in the Blog?!  At least I could find the info, that's one step to making things better in the linux world, arrggggg.

 

25pjsc3.jpg


Edited by pcpunk, 10 January 2018 - 08:20 PM.

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#8 buddy215

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Posted 10 January 2018 - 11:01 AM

My System Monitor shows a different Kernel....Ubuntu 16.04.3 LTS    MATE 1.12.1

Kernel Linux 4.10.0-42-generic x86_64

 

I've installed all offered updates except for Firefox....I'm still using 56...

 

EDIT: Just saw this BC news article: Meltdown & Spectre Patches Bricking Ubuntu 16.04 Computers

 

QUOTE A BIT....

A Canonical spokesperson was not available for comment on the issue, but two new Ubuntu 16.04 updates [1, 2] with Linux kernel image 4.4.0-109 were released two hours before this article's publication.

Some of the users who reported issues with the previous update said the new kernel build worked fine. As a last resort, rolling back to kernel image 4.4.0-104 also fixes the boot issues for affected users.


Edited by buddy215, 10 January 2018 - 11:49 AM.

“Every atom in your body came from a star that exploded and the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics...you are all stardust.”Lawrence M. Krauss
A 1792 U.S. penny, designed in part by Thomas Jefferson and George Washington, reads “Liberty Parent of Science & Industry.”

#9 buddy215

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Posted 10 January 2018 - 01:49 PM

I just checked updates and low and behold got this: Kernel Linux 4.13.0-26-generic x86_64

 

Rebooted and all is well....:)


“Every atom in your body came from a star that exploded and the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics...you are all stardust.”Lawrence M. Krauss
A 1792 U.S. penny, designed in part by Thomas Jefferson and George Washington, reads “Liberty Parent of Science & Industry.”

#10 NickAu

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Posted 10 January 2018 - 03:15 PM

My PC just updated to kernel image 4.4.0-109 and everything seems to be working fine.

 

I bet M$ wouldn't be so quick with a fix.


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#11 NickAu

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Posted 10 January 2018 - 03:37 PM

Install Intel Processor Patch for Meltdown & Spectre in Ubuntu

 

Linux* Processor Microcode Data File Detailed Description


Purpose

This microcode data file contains the latest microcode definitions for all Intel processors. Intel releases these updates periodically. These microcode data files correct processor behavior as documented in the respective processor specification guidelines.

While the regular approach to getting this microcode update is via a BIOS update, Intel realizes that this can be an administrative hassle. The Linux* operating system has a mechanism to update the microcode after booting. For example, this file will be used by the operating system mechanism if the file is placed in the /etc/firmware directory of the Linux system.

 

 

https://downloadcenter.intel.com/download/27431/Linux-Processor-Microcode-Data-File


Edited by NickAu, 10 January 2018 - 03:38 PM.

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#12 NickAu

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Posted 10 January 2018 - 04:52 PM

Install Intel Processor Patch for Meltdown & Spectre in Ubuntu

 

1. Download the Intel Processor patch from the link below:

https://downloadcenter.intel.com/download/27431/Linux-Processor-Microcode-Data-File

Extract the file and you’ll get a new file folder with microcode.dat and intel-ucode directory.

 

KLrxifx.png

 

2. To install the patch, open terminal via Ctrl+Alt+T. When it opens, run command:

sudo cp -r ~/Downloads/microcode-*/intel-ucode /lib/firmware/

Now run

sudo -i && echo 1 > /sys/devices/system/cpu/microcode/reload

Z9d5xQB.png

 

Reboot your PC.

 

Tested on my PC.

R8tmml4.png


Edited by NickAu, 10 January 2018 - 04:58 PM.

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#13 pcpunk

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Posted 10 January 2018 - 08:09 PM

What's the big hoopla, I thought an attacker had to have physical access to the pc in question?


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#14 pcpunk

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Posted 10 January 2018 - 08:21 PM

Thanks Nick!

 

So do I install these or just wait till I get what I need in the Default Updates for Mint?

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#15 buddy215

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Posted 10 January 2018 - 08:26 PM

pcpunk....after looking through that HUGE list of processors and not finding mine....Intel® Core™2 Quad CPU Q6600 @ 2.40GHz × 4

I'm not disappointed because I was having a bit of anxiety/ unsure of the risk.... about performing that update. That's my newest machine so I'm not bothering

to check others.


“Every atom in your body came from a star that exploded and the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics...you are all stardust.”Lawrence M. Krauss
A 1792 U.S. penny, designed in part by Thomas Jefferson and George Washington, reads “Liberty Parent of Science & Industry.”




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