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kernel 4.4.0-108 / 16.04 LTS does not boot anymore

Hi there,

my good old pc  running 16.04 LTS Desktop got a an update today.

Now it does not boot any more.

it is a: Intel® Core™ i5-2500 CPU @ 3.30GHz × 4

The kernel it got is 4.4.0-108.

Fro this one it does not boot any more.

Kernel 4.4.0-104 boots fine.

Is there something I can do about this?

thanks

robert

Comments

Re: kernel 4.4.0-108 / 16.04 LTS does not boot anymore

By NoOp at 01/10/2018 - 16:22

On 1/9/2018 11:42 PM, robert rottermann wrote:

See:
<a href="https://usn.ubuntu.com/usn/usn-3522-3/" title="https://usn.ubuntu.com/usn/usn-3522-3/">https://usn.ubuntu.com/usn/usn-3522-3/</a>
"Details

USN-3522-1 fixed a vulnerability in the Linux kernel to address
Meltdown (CVE-2017-5754). Unfortunately, that update introduced
a regression where a few systems failed to boot successfully. This
update fixes the problem."

<a href="https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1741934" title="https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1741934">https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1741934</a>
Kernel trace with xenial 4.4 (4.4.0-108.131, Candidate kernels for PTI fix)

Re: kernel 4.4.0-108 / 16.04 LTS does not boot anymore

By oxy via ubuntu-users at 01/11/2018 - 23:10

On Wed, 10 Jan 2018 12:22:41 -0800, NoOp wrote:
kernel 4.4.0-109 is available. I installed it with apt update/upgrade
yesterday and it fix the Non-Boot issue --- without removing any older
kernels - even the borked 4.4.0.108.

Jonesy

Re: kernel 4.4.0-108 / 16.04 LTS does not boot anymore

By NoOp at 01/12/2018 - 17:34

On 01/11/2018 07:10 PM, Jonesy via ubuntu-users wrote:
Yes... that I what USN-3522-3 (that I provided a link for) stated:

<quote>
Details

USN-3522-1 fixed a vulnerability in the Linux kernel to address
Meltdown (CVE-2017-5754). Unfortunately, that update introduced
a regression where a few systems failed to boot successfully. This
update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Jann Horn discovered that microprocessors utilizing speculative
execution and indirect branch prediction may allow unauthorized memory
reads via sidechannel attacks. This flaw is known as Meltdown. A local
attacker could use this to expose sensitive information, including
kernel memory.

Update instructions

The problem can be corrected by updating your system to the following
package version:

Ubuntu 16.04 LTS:
linux-image-generic 4.4.0.109.114
linux-image-4.4.0-109-lowlatency 4.4.0-109.132
linux-image-lowlatency 4.4.0.109.114
linux-image-4.4.0-109-generic 4.4.0-109.132

To update your system, please follow these instructions:
<a href="https://wiki.ubuntu.com/Security/Upgrades" title="https://wiki.ubuntu.com/Security/Upgrades">https://wiki.ubuntu.com/Security/Upgrades</a>.
</quote>

Re: kernel 4.4.0-108 / 16.04 LTS does not boot anymore

By Oliver Grawert at 01/10/2018 - 07:59

Am Mittwoch, den 10.01.2018, 08:42 +0100 schrieb robert rottermann:
this is likely 
<a href="https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1741934" title="https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1741934">https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1741934</a>

a 4.4.0-109 package that fixes it is in the archive already ... 
just do apt update/upgrade again ... 

ciao
oli

Re: kernel 4.4.0-108 / 16.04 LTS does not boot anymore

By Colin Law at 01/10/2018 - 05:19

On 10 January 2018 at 07:42, robert rottermann < ... at redcor dot ch> wrote:
Have a look in /var/log/syslog and see what it shows there for the
failed boot, which will obviously be before the good boot. Copy/paste
the section showing the failed boot here.

Colin

Re: kernel 4.4.0-108 / 16.04 LTS does not boot anymore

By robert rottermann at 01/10/2018 - 06:22

Thanks Colin
On 10.01.2018 10:19, Colin Law wrote:
It seems not to create any entry.

This is what I did to test:

moved /var/log/syslog away.

rebooted into the failing kernel.

two lines are shown in the console.

The second saying that the initial ramdisk is loaded

then nothing

No entry in /var/log/syslog when I log into kernel 4.4.0-104 recovery mode (the
failing version is -108)

robert

Re: kernel 4.4.0-108 / 16.04 LTS does not boot anymore

By Nils Kassube at 01/10/2018 - 07:41

robert wrote:
What happens if you start the -108 kernel in recovery mode? Is there
more than the two initial lines on the screen?

Nils

Re: kernel 4.4.0-108 / 16.04 LTS does not boot anymore

By Colin Law at 01/10/2018 - 06:26

On 10 January 2018 at 10:22, robert < ... at redcor dot ch> wrote:
I wonder whether the kernel install failed for some reason. It would
be worth trying

sudo apt-get update && sudo apt-get dist-upgrade

If that shows any errors then
sudo apt-get install -f

Colin

Re: kernel 4.4.0-108 / 16.04 LTS does not boot anymore

By robert rottermann at 01/10/2018 - 06:36

On 10.01.2018 11:26, Colin Law wrote:
I did so, but nothing changed.

robert

Re: kernel 4.4.0-108 / 16.04 LTS does not boot anymore

By Colin Law at 01/10/2018 - 07:17

On 10 January 2018 at 10:36, robert rottermann < ... at redcor dot ch> wrote:
This may capture messages from before the log gets going:
Firstly tell systemd to keep the journal
sudo mkdir /var/log/journal
The fact that the directory exists tells it to put stuff there.
Reboot into the failing kernel
Rebbot into the good kernel
Immediately run
journalctl -b -1 > ~/tmp/journal.txt
then in /tmp/journal.txt there may be something useful

Once this problem is sorted remove the /var/log/journal directory again.

Colin

Re: kernel 4.4.0-108 / 16.04 LTS does not boot anymore

By =?UTF-8?B?4Ka44... at 01/10/2018 - 03:59

Hi robert

2018-01-10 7:42 GMT+00:00 robert rottermann < ... at redcor dot ch>:

On which stage it is hanging now while booting? Can you please share a
photo/screenshot of your pc while booting?

it is a: Intel® Core™ i5-2500 CPU @ 3.30GHz × 4
On system start when the bios message appears and showing you messages then

Re: kernel 4.4.0-108 / 16.04 LTS does not boot anymore

By robert rottermann at 01/10/2018 - 04:41

Hi
On 10.01.2018 08:59, সাজেদুর রহিম জোয়ারদার wrote:
when I select the "more options" (i do not remember the exact wording) i get a
list with a number of kernels and boot options.
The first one is kernel 4.4.0-108.
If I boot into it, two lines are displayed in the text console.
The second line tells, that a virtual drive or some such is loaded. Then the pc
hangs.

when I boot from an older kernel, or an older ubuntu version still on the box,
everything works fine.

robert

Re: kernel 4.4.0-108 / 16.04 LTS does not boot anymore

By compdoc at 01/10/2018 - 10:36

I just installed updates and rebooted a server, and the same thing is
happening. blank screen at boot. I had to boot another kernel.