CentOS - Aug 2020 - 8.2.2004 Latest yum update renders machine unbootable

At 06:10 AM 8/2/2020, you wrote:
>On 8/2/20 8:04 AM, david wrote:
> >
> >> <snip>
> >
> >
> >
> >> > I'll post here again once we have pushed the EL8 and
CentOS Stream
> >> updates.
> >>
> >> OK .. I have also now pushed the CentOS Linux 8 update .. you
should see
> >> an update to SHIM .. the new versions are:
> >>
> >>
PowerTools/x86_64/os/Packages/shim-unsigned-x64-15-8.el8.x86_64.rpm
> >> BaseOS/x86_64/os/Packages/shim-ia32-15-15.el8_2.x86_64.rpm
> >> BaseOS/x86_64/os/Packages/shim-x64-15-15.el8_2.x86_64.rpm
> >>
> >> For CentOS Linux 7 .. the new files are:
> >>
> >> x86_64/Packages/mokutil-15-8.el7.x86_64.rpm
> >> x86_64/Packages/shim-ia32-15-8.el7.x86_64.rpm
> >> x86_64/Packages/shim-unsigned-ia32-15-8.el7.x86_64.rpm
> >> x86_64/Packages/shim-unsigned-x64-15-8.el7.x86_64.rpm
> >> x86_64/Packages/shim-x64-15-8.el7.x86_64.rpm
> >>
> >> You need only replace the files you currently have installed, not
> >> install every file.
> >>
> >> Please report both positive and negative results.
> >>
> >> Thanks,
> >> Johnny Hughes
> >>
> > I updated my Centos 7, and it's awaiting a reboot.?  The version
of shim
> > says 15-7, which I presume is the bad one.
> >
> > What do I need to do??  Obviously, a reboot will encounter the
failure.?
> > Or, should I perform "yum update" periodically and wait for
shim 15-8 to
> > appear, and only after that do the reboot??  Or is there some other
remedy?
> >
> > And by the way, I'm amazed at the speed with which this problem
was
> > addressed and a fix provided.?  You guys work wonders.
> >
> > David
>
>It would be best IF the kernel and shim get installed at the same time
>if possible .. so I would install the kernel again (since it is not
>running yet) with the new shim.
>
>BTW .. it does not fail on every install .. so it might work w/o the new
>update.  However, no need to chance it at this point.  Wait until the
>new shim is there and install it and reinstall the kernel is my advise.
Here's what I get...

rpm -qa | grep shim
shim-x64-15-7.el7_9.x86_64

yum update
Loaded plugins: fastestmirror, langpacks, priorities
Loading mirror speeds from cached hostfile
  * base: mirror.fileplanet.com
  * epel: mirror.prgmr.com
  * extras: mirror.shastacoe.net
  * remi-php73: mirror.sjc02.svwh.net
  * remi-safe: mirror.sjc02.svwh.net
  * updates: centos-distro.1gservers.com
373 packages excluded due to repository priority protections
No packages marked for update



Should I just wait for 15-8 to appear?

David

On 8/2/20 8:30 AM, david wrote:
> At 06:10 AM 8/2/2020, you wrote:
>> On 8/2/20 8:04 AM, david wrote:
>> >
>> >> <snip>
>> >
>> >
>> >
>> >> > I'll post here again once we have pushed the EL8 and
CentOS Stream
>> >> updates.
>> >>
>> >> OK .. I have also now pushed the CentOS Linux 8 update .. you
>> should see
>> >> an update to SHIM .. the new versions are:
>> >>
>> >>
PowerTools/x86_64/os/Packages/shim-unsigned-x64-15-8.el8.x86_64.rpm
>> >> BaseOS/x86_64/os/Packages/shim-ia32-15-15.el8_2.x86_64.rpm
>> >> BaseOS/x86_64/os/Packages/shim-x64-15-15.el8_2.x86_64.rpm
>> >>
>> >> For CentOS Linux 7 .. the new files are:
>> >>
>> >> x86_64/Packages/mokutil-15-8.el7.x86_64.rpm
>> >> x86_64/Packages/shim-ia32-15-8.el7.x86_64.rpm
>> >> x86_64/Packages/shim-unsigned-ia32-15-8.el7.x86_64.rpm
>> >> x86_64/Packages/shim-unsigned-x64-15-8.el7.x86_64.rpm
>> >> x86_64/Packages/shim-x64-15-8.el7.x86_64.rpm
>> >>
>> >> You need only replace the files you currently have installed,
not
>> >> install every file.
>> >>
>> >> Please report both positive and negative results.
>> >>
>> >> Thanks,
>> >> Johnny Hughes
>> >>
>> > I updated my Centos 7, and it's awaiting a reboot.?? The
version of
>> shim
>> > says 15-7, which I presume is the bad one.
>> >
>> > What do I need to do??? Obviously, a reboot will encounter the
>> failure.?
>> > Or, should I perform "yum update" periodically and wait
for shim
>> 15-8 to
>> > appear, and only after that do the reboot??? Or is there some
other
>> remedy?
>> >
>> > And by the way, I'm amazed at the speed with which this
problem was
>> > addressed and a fix provided.?? You guys work wonders.
>> >
>> > David
>>
>> It would be best IF the kernel and shim get installed at the same time
>> if possible .. so I would install the kernel again (since it is not
>> running yet) with the new shim.
>>
>> BTW .. it does not fail on every install .. so it might work w/o the
new
>> update.? However, no need to chance it at this point.? Wait until the
>> new shim is there and install it and reinstall the kernel is my advise.
> 
> Here's what I get...
> 
> rpm -qa | grep shim
> shim-x64-15-7.el7_9.x86_64
> 
> yum update
> Loaded plugins: fastestmirror, langpacks, priorities
> Loading mirror speeds from cached hostfile
> ?* base: mirror.fileplanet.com
> ?* epel: mirror.prgmr.com
> ?* extras: mirror.shastacoe.net
> ?* remi-php73: mirror.sjc02.svwh.net
> ?* remi-safe: mirror.sjc02.svwh.net
> ?* updates: centos-distro.1gservers.com
> 373 packages excluded due to repository priority protections
> No packages marked for update
> 
> 
> 
> Should I just wait for 15-8 to appear?
> 
> David
> 
Yes .. it should be on mirror.centos.org now .. you could change the
repo where your updates come from.  OR .. wait for that mirror to get
updated.


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At 06:37 AM 8/2/2020, Johnny Hughes wrote:
>On 8/2/20 8:30 AM, david wrote:
> > At 06:10 AM 8/2/2020, you wrote:
> >> On 8/2/20 8:04 AM, david wrote:
> >> >
> >> >> <snip>
> >> >
> >> >
> >> >
> >> >> > I'll post here again once we have pushed the EL8
and CentOS Stream
> >> >> updates.
> >> >>
> >> >> OK .. I have also now pushed the CentOS Linux 8 update ..
you
> >> should see
> >> >> an update to SHIM .. the new versions are:
> >> >>
> >> >>
PowerTools/x86_64/os/Packages/shim-unsigned-x64-15-8.el8.x86_64.rpm
> >> >>
BaseOS/x86_64/os/Packages/shim-ia32-15-15.el8_2.x86_64.rpm
> >> >> BaseOS/x86_64/os/Packages/shim-x64-15-15.el8_2.x86_64.rpm
> >> >>
> >> >> For CentOS Linux 7 .. the new files are:
> >> >>
> >> >> x86_64/Packages/mokutil-15-8.el7.x86_64.rpm
> >> >> x86_64/Packages/shim-ia32-15-8.el7.x86_64.rpm
> >> >> x86_64/Packages/shim-unsigned-ia32-15-8.el7.x86_64.rpm
> >> >> x86_64/Packages/shim-unsigned-x64-15-8.el7.x86_64.rpm
> >> >> x86_64/Packages/shim-x64-15-8.el7.x86_64.rpm
> >> >>
> >> >> You need only replace the files you currently have
installed, not
> >> >> install every file.
> >> >>
> >> >> Please report both positive and negative results.
> >> >>
> >> >> Thanks,
> >> >> Johnny Hughes
> >> >>
> >> > I updated my Centos 7, and it's awaiting a reboot.??? 
The version of
> >> shim
> >> > says 15-7, which I presume is the bad one.
> >> >
> >> > What do I need to do????  Obviously, a reboot will encounter
the
> >> failure.??
> >> > Or, should I perform "yum update" periodically and
wait for shim
> >> 15-8 to
> >> > appear, and only after that do the reboot????  Or is there
some other
> >> remedy?
> >> >
> >> > And by the way, I'm amazed at the speed with which this
problem was
> >> > addressed and a fix provided.???  You guys work wonders.
> >> >
> >> > David
> >>
> >> It would be best IF the kernel and shim get installed at the same
time
> >> if possible .. so I would install the kernel again (since it is
not
> >> running yet) with the new shim.
> >>
> >> BTW .. it does not fail on every install .. so it might work w/o
the new
> >> update.?  However, no need to chance it at this point.?  Wait
until the
> >> new shim is there and install it and reinstall the kernel is my
advise.
> >
> > Here's what I get...
> >
> > rpm -qa | grep shim
> > shim-x64-15-7.el7_9.x86_64
> >
> > yum update
> > Loaded plugins: fastestmirror, langpacks, priorities
> > Loading mirror speeds from cached hostfile
> > ? * base: mirror.fileplanet.com
> > ? * epel: mirror.prgmr.com
> > ? * extras: mirror.shastacoe.net
> > ? * remi-php73: mirror.sjc02.svwh.net
> > ? * remi-safe: mirror.sjc02.svwh.net
> > ? * updates: centos-distro.1gservers.com
> > 373 packages excluded due to repository priority protections
> > No packages marked for update
> >
> >
> >
> > Should I just wait for 15-8 to appear?
> >
> > David
> >
>
>Yes .. it should be on mirror.centos.org now .. you could change the
>repo where your updates come from.  OR .. wait for that mirror to get
>updated.

I just did
yum clean all
yum update

and 15-8 showed up.  Maybe the 'clean all' did it, or maybe just showed
up.

I applied the update (yum update), rebooted and...
no boot.  Just a blank screen.

Hardware is a Mac-Mini :-(

This is not an essential machine, so I could 
re-install (from netinstall) if you think it's worth the effort.

Or what?

David