Bad Shim Signature | Fedora Silverblue |

[hamrheadcorvette (hammerhead corvette)]

@crazymonkey

bad shim signature

There are several topics available to address the issues with Bad Shim Signature here on the forums.

Here are some links :

Bad shim signature

Recently, I updated secureboot dbx with fwupdmgr. It has many options so I checked the all of them how they works. Security, one of the options, the result makes me annoy because of many of ‘:x:’. Then I coped with disabling swap partition, turning on secure boot, and so on. My laptop has 3 OSes. I turn it on, select an OS, display shows me a message ’ ~~~ bad shim signature, ~~~~kernel load first ~~ press any key to continue’. I can only boot my laptop hitting F10 key at the startup, and B…

• This link beiong the most recent and containing the bug report, and lins to follow for more troubleshooting :

After a system update, bad shim signature | Silverblue | F40

System Details Report Report details Date generated: 2024-06-17 22:48:02 Hardware Information: Hardware Model: Micro-Star International Co., Ltd. Modern 15 A5M Memory: 8.0 GiB Processor: AMD Ryzen™ 5 5500U with Radeon™ Graphics × 12 Graphics: AMD Radeon™ Graphics Disk Capacity: 512.1 GB Software Info…

Unable to boot latest Kinoite deployment (bad shim signature)

When trying to boot into the latest 39.20240406.0 deployment of Kinoite, I get an error and am unable to boot. The error states “bad shim signature”. Currently I am booting into the previous day’s deployment (39.20240405.0) without issue. No difference in overlays between this deployment and the latest one that is not booting. I see that there is a version difference in the kernel of the working deployment (6.7.11-200) and the one that fails to boot (6.8.4-200). [Error] rpm-ostree status St…