On 8/2/20 6:59 AM, Johnny Hughes wrote: > On 8/2/20 2:04 AM, Alessandro Baggi wrote: >> >> Il 01/08/20 22:03, Greg Bailey ha scritto: >>> On 8/1/20 6:56 AM, david wrote: >>>> At 02:54 AM 8/1/2020, Alessandro Baggi wrote: >>>>> Hi Johnny, >>>>> thank you very much for clarification. >>>>> >>>>> You said that in the centos infrastructure only one server got the >>>>> problem. >>>>> What are the conditions that permit the breakage? There is a particular >>>>> configuration (hw/sw) case that match always the problem or it is >>>>> random? >>>>> >>>>> Thank you >>>> >>>> I have two servers running Centos 7 on apple hardware (one mac-mini >>>> and one mac server). They both failed to reboot a few days ago. So >>>> perhaps whatever anti-boot bug hit Centos 8, also hit Centos 7. I >>>> can't tell what version got updated since the system simply fails to >>>> boot. I don't even get a grub screen. I'll have to rebuild the >>>> systems from scratch. >>>> >>>> >>> >>> You should be able to boot off of installation media into rescue mode, >>> and downgrade the grub2* and/or shim* RPMs. >>> >>> -Greg >>> >> I did the downgrade on a fresh install of c8.2 but yum said that all >> selected packages (grub2,shim...) are already to the lowest version and >> the downgrade is not possibile, ending with "nothing to do". > > Ok .. We are running through some final testing now for CentOS Linux 8 > and CentOS Stream .. updates later today for EL8. > > For CentOS Linux 7 .. I just pushed the latest shim packages (we had to > get these signed by Microsoft .. as do all distros that do shim. > Microsoft is the official CA for secureboot. > > So in the next few hours, after the mirrors sync up .. you should be > able to fix any EL7 machines. > > 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 -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 195 bytes Desc: OpenPGP digital signature URL: <http://lists.centos.org/pipermail/centos/attachments/20200802/fab5a7f2/attachment-0004.sig>