<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 10pt; color: #000000"><div>What I mean is that centos/RHEL by default are keeping the last 3 installed kernels (spacewalk has nothing to do with it)</div><div><br></div><div>You will still need to remove the latest kernel packages from the machines, enrolling the machines to another channel with an older kernel is not sufficient.</div><div><br data-mce-bogus="1"></div><div>/Alex</div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>From: </b>"Yakin, Francis" <Francis.Yakin@windriver.com><br><b>To: </b>spacewalk-list@redhat.com<br><b>Sent: </b>Thursday, March 15, 2018 6:13:11 PM<br><b>Subject: </b>Re: [Spacewalk-list] Rollback to the old kernal<br></div><br><div data-marker="__QUOTED_TEXT__">
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<p class="MsoNormal"><span style="color: #1f497d;" data-mce-style="color: #1f497d;">Alex,</span></p>
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<p class="MsoNormal"><span style="color: #1f497d;" data-mce-style="color: #1f497d;">You mean I should keep the old kernel on the clients it self.</span></p>
<p class="MsoNormal"><span style="color: #1f497d;" data-mce-style="color: #1f497d;">In regards to spacewalk, yesterday we tried to create another repository with old kernel and try to sync it with our servers., we tried to roll back, but it failed.</span></p>
<p class="MsoNormal"><span style="color: #1f497d;" data-mce-style="color: #1f497d;"> </span></p>
<p class="MsoNormal"><span style="color: #1f497d;" data-mce-style="color: #1f497d;">Francis</span></p>
<p class="MsoNormal"><span style="color: #1f497d;" data-mce-style="color: #1f497d;"> </span></p>
<p class="MsoNormal"><span style="color: #1f497d;" data-mce-style="color: #1f497d;"> </span></p>
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<p class="MsoNormal"><b><span style="font-size: 10.0pt; font-family: 'Tahoma','sans-serif';" data-mce-style="font-size: 10.0pt; font-family: 'Tahoma','sans-serif';">From:</span></b><span style="font-size: 10.0pt; font-family: 'Tahoma','sans-serif';" data-mce-style="font-size: 10.0pt; font-family: 'Tahoma','sans-serif';"> spacewalk-list-bounces@redhat.com [mailto:spacewalk-list-bounces@redhat.com]
<b>On Behalf Of </b>Alexandru Raceanu<br>
<b>Sent:</b> Thursday, March 15, 2018 12:58 AM<br>
<b>To:</b> spacewalk-list@redhat.com<br>
<b>Subject:</b> Re: [Spacewalk-list] Rollback to the old kernal</span></p>
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<p class="MsoNormal"><span style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;" data-mce-style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;">You should still have the old kernel installed on the machine(s) and you will be able to roll back the kernel by removing the kernel*-<version> packages using yum.</span></p>
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<p class="MsoNormal"><span style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;" data-mce-style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;">I think by default centos keeps the last 3 kernel versions.</span></p>
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<p class="MsoNormal"><span style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;" data-mce-style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;"> </span></p>
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<p class="MsoNormal"><span style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;" data-mce-style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;">In regards to spacewalk you can exclude all kernels and include only one version to be synced from external repo.</span></p>
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<p class="MsoNormal"><span style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;" data-mce-style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;"> </span></p>
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<p class="MsoNormal"><span style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;" data-mce-style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;">/Alex</span></p>
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<p class="MsoNormal"><b><span style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;" data-mce-style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;">From:
</span></b><span style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;" data-mce-style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;">"Yakin, Francis" <<a href="mailto:Francis.Yakin@windriver.com" target="_blank">Francis.Yakin@windriver.com</a>><br>
<b>To: </b><a href="mailto:spacewalk-list@redhat.com" target="_blank">spacewalk-list@redhat.com</a><br>
<b>Sent: </b>Thursday, March 15, 2018 2:23:02 AM<br>
<b>Subject: </b>[Spacewalk-list] Rollback to the old kernal</span></p>
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<p class="MsoNormal"><span style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;" data-mce-style="font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;"> </span></p>
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<p class="MsoNormal"><span style="color: black;" data-mce-style="color: black;">Does spacewalk will be able to roll back to the old kernel?</span></p>
<p class="MsoNormal"><span style="color: black;" data-mce-style="color: black;"> </span></p>
<p class="MsoNormal"><span style="color: black;" data-mce-style="color: black;">For example I ugraded the CentOS from 6.8(kernel 3.0.0 for example) to 6.9 (kernel 3.1.0) Can I roll back to 6.8(kernel 3.0.0)?</span></p>
<p class="MsoNormal"><span style="color: black;" data-mce-style="color: black;"> </span></p>
<p class="MsoNormal"><span style="color: black;" data-mce-style="color: black;"> </span></p>
<p class="MsoNormal"><span style="color: black;" data-mce-style="color: black;">Thanks</span></p>
<p class="MsoNormal"><span style="color: black;" data-mce-style="color: black;"> </span></p>
<p class="MsoNormal"><span style="color: black;" data-mce-style="color: black;"> </span></p>
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