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<div>Here is a receipe for boot from an older kernel, and how to set it to a default.</div>
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<p>If you have a few Kernels in your system you can set manually what Kernel version will start:</p>
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<p>Reboot your PC with pressed Shift button for display GRUB after BIOS will start. You will see something like: <a href="https://i.stack.imgur.com/sSCzp.png" rel="nofollow noreferrer">GRUB start page</a></p>
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<p>Select "Advanced options for Ubuntu" and memorize index of this menu line(count starts from 0) On the picture index is 1</p>
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<p><a href="https://i.stack.imgur.com/yYhnM.png" rel="nofollow noreferrer">Select concrete Kernel</a></p>
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<p>Select concrete kernel for boot and also memorize index of this menu line(count starts from 0) On the picture index of chosen Kernel is 2</p>
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<p>Start system. This action is for one boot on concrete kernel. If you want to start from concrete Kernel all time you should do next steps:</p>
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<p>4.1. Open and edit GRUB setup file:</p>
<pre><code>sudo nano /etc/default/grub
</code></pre>
<p>4.2. Find line GRUB_DEFAULT=...(by default GRUB_DEFAULT=0) and sets in quotes menu path to concrete Kernel(Remember menu indexes from steps 2 and 3). In my system first index was 1 and second was 2. I set in to GRUB_DEFAULT</p>
<pre><code>GRUB_DEFAULT="1>2"
</code></pre>
<p>Save file.</p>
<p>4.3. Update GRUB information for apply changes:</p>
<pre><code>sudo update-grub
</code></pre>
<p>4.4. After reboot you automatically boot on Kernel by chosen menu path. An example on my machine 1 -> 2</p>
<p>4.5. Check Kernel version after reboot:</p>
<p>uname -r</p>
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<div style="margin:0 0 10px 0;"><b>Sent:</b> Thursday, April 18, 2019 at 10:54 PM<br/>
<b>From:</b> "Brian O'Keefe" <okeefe@cybermesa.com><br/>
<b>To:</b> nmglug@lists.nmglug.org<br/>
<b>Subject:</b> Re: [nmglug] Weirdness</div>
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<p>Thanks again,</p>
<p>Tried them all to no avail</p>
<div class="moz-cite-prefix">On 4/15/19 6:33 PM, Harold Furbiter wrote:</div>
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<div>You could try:</div>
<div>sudo /sbin/init 6 (see if it reboots)</div>
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reboots to a blank, colored screen, no log in
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<div>sudo /sbin/init 1 (see if it give you a prompt)</div>
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Gives me a rescue mode prompt that I cannot use as I can't enter any of the options
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<div>maybe su to root and try init</div>
<div>sudo su - root (you need '- root' to insure your path is root's)</div>
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<div>you might try booting from a older or oldest kernel:</div>
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Can't access the grub menu for older kernels. Using shift key during boot just gives me the blank colored screen
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<div>dpkg -l | grep linux-image | awk '{print$2}'</div>
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<div>Gives you a list of bootable kernels available on your system. Try booting from the oldest version.</div>
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Is there a way to reboot from a terminal with an older kernel as I cannot access the grub menu. this is a recent issue, within the last couple of weeks.
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<div>Cheers,</div>
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<div style="margin: 0 0 10.0px 0;"><b>Sent:</b> Saturday, April 13, 2019 at 8:32 AM<br/>
<b>From:</b> "Harold Furbiter" <a class="moz-txt-link-rfc2396E" href="mailto:wwcorigan@mail.com" onclick="parent.window.location.href='mailto:wwcorigan@mail.com'; return false;" target="_blank"><wwcorigan@mail.com></a><br/>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:nmglug@lists.nmglug.org" onclick="parent.window.location.href='mailto:nmglug@lists.nmglug.org'; return false;" target="_blank">nmglug@lists.nmglug.org</a><br/>
<b>Subject:</b> Re: [nmglug] Weirdness</div>
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<div>Then you have a corrupt kernel. On boot try booting to an older kernel.</div>
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<div><a href="https://askubuntu.com/questions/82140/how-can-i-boot-with-an-older-kernel-version" target="_blank">https://askubuntu.com/questions/82140/how-can-i-boot-with-an-older-kernel-version</a></div>
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<div style="margin: 0 0 10.0px 0;"><b>Sent:</b> Friday, April 12, 2019 at 6:15 PM<br/>
<b>From:</b> "Brian O'Keefe" <a class="moz-txt-link-rfc2396E" href="mailto:okeefe@cybermesa.com" onclick="parent.window.location.href='mailto:okeefe@cybermesa.com'; return false;" target="_blank"><okeefe@cybermesa.com></a><br/>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:nmglug@lists.nmglug.org" onclick="parent.window.location.href='mailto:nmglug@lists.nmglug.org'; return false;" target="_blank">nmglug@lists.nmglug.org</a><br/>
<b>Subject:</b> Re: [nmglug] Weirdness</div>
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<p>Thanks for the input Harold,</p>
<p>Same result, just hangs on the splash screen. Can't logout, esc. key does nothing, can't switch to a console. Just have to do a hard shutdown.</p>
<div class="moz-cite-prefix">On 4/11/19 8:59 PM, Harold Furbiter wrote:</div>
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<div>Out of curiousity have you tried init 0 ?
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<div style="margin: 0 0 10.0px 0;"><b>Sent:</b> Wednesday, April 10, 2019 at 11:26 AM<br/>
<b>From:</b> "Brian O'Keefe" <a class="moz-txt-link-rfc2396E" href="mailto:okeefe@cybermesa.com" onclick="parent.window.location.href='mailto:okeefe@cybermesa.com'; return false;" target="_blank"><okeefe@cybermesa.com></a><br/>
<b>To:</b> "NMGLUG.org mailing list" <a class="moz-txt-link-rfc2396E" href="mailto:nmglug@nmglug.org" onclick="parent.window.location.href='mailto:nmglug@nmglug.org'; return false;" target="_blank"><nmglug@nmglug.org></a><br/>
<b>Subject:</b> [nmglug] Weirdness</div>
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<p>Hi All,</p>
<p>Since I may not make meeting (niece visiting and Thurs. is her last day) I'm putting my issue out for comment and hopefully answers. As many of you know I used to updgrade instead of clean installs and did that since Ubuntu 6.04. I had also added many apps from third parties and also modified many, many conf files to keep things working. I had a meltdown and lost much of my data but following a partial recovery, thanks to a certain group member, I installed a clean version of 18.04 onto a new 1TB SSD. I have ot tinkered at all with 3rd party software nor modified any conf files or been a bad boy in any way!</p>
<p>My issue ids that I cannot shut down my box in anyway other than a hard shutdown. I also cannot restart it. I have tried the GUI option as well as switching to text mode and using "sudo shutdown now" or "sudo restart now". In those cases I get the splash screen with the "traveling lights" and Unutu but it hangs there. The traveling dots hang on the first dot of the splash screen and nothing happens. I had hoped that text mode would give give me an indication of the issues but I can't stay in that mode for some reason. </p>
<p>Thanks for any help.</p>
<p>Brian</p>
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