<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Aug 1, 2020 at 12:03 PM D. Hugh Redelmeier via talk <<a href="mailto:talk@gtalug.org">talk@gtalug.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><a href="https://access.redhat.com/solutions/5272311" rel="noreferrer" target="_blank">https://access.redhat.com/solutions/5272311</a><br>
<a href="https://arstechnica.com/gadgets/2020/07/red-hat-and-centos-systems-arent-booting-due-to-boothole-patches/" rel="noreferrer" target="_blank">https://arstechnica.com/gadgets/2020/07/red-hat-and-centos-systems-arent-booting-due-to-boothole-patches/</a><br>
<br>
Don't do upgrades to Fedora, RHEL, CentOS until you read those.<br>
<br>
This seems to have bitten me, making one of my routers (running CentOS 7).<br>
I'm still not sure if this is what has happened to my system.<br>
The symptoms looked like an SSD failure: nothing past POST on the screen.<br>
<br>
So I spent a fair bit of time trying to work around the loss.  Now that <br>
I've seen this error report, I will redirect my efforts<br></blockquote><div><br></div><div>Seems to affect grub2 and secure boot for quite a number of distributions. </div><div><br></div><div> <a href="https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass?WUwbDVmRWk5RCtJZ2IyNUU2SyJ9#Recovery">https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass?WUwbDVmRWk5RCtJZ2IyNUU2SyJ9#Recovery</a></div><div><br></div><div>One fix quote from this link.</div><div><pre class="gmail-bz_comment_text" style="white-space:pre-wrap;margin:1em;padding-bottom:1em;color:rgb(0,0,0)">"solved this by actually copying the grubenv file to /boot/grub2 instead of relying on the symlink to efi."</pre></div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
---<br>
Post to this mailing list <a href="mailto:talk@gtalug.org" target="_blank">talk@gtalug.org</a><br>
Unsubscribe from this mailing list <a href="https://gtalug.org/mailman/listinfo/talk" rel="noreferrer" target="_blank">https://gtalug.org/mailman/listinfo/talk</a><br>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>Russell<br></div></div></div></div></div></div>