Public bug reported: I'm on Ubuntu 22.04 HWE, so the kernel switched from 6.5 to 6.8 recently and the newly generated initramfs is missing the CPU microcode:
[…] dracut: Generating /boot/initrd.img-6.5.0-45-generic Mode: real Files: 664 Linked: 2 files Compared: 0 xattrs Compared: 21 files Saved: 844.81 KiB Duration: 0.007279 seconds dracut: Generating /boot/initrd.img-6.8.0-40-generic dracut: Disabling early microcode, because kernel does not support it. CONFIG_MICROCODE_[AMD|INTEL]!=y Mode: real Files: 670 Linked: 2 files Compared: 0 xattrs Compared: 18 files Saved: 844.81 KiB Duration: 0.007241 seconds […] # cpio -t < /boot/initrd.img-6.8.0-40-generic 2>&1 | grep microcode # cpio -t < /boot/initrd.img-6.5.0-45-generic 2>&1 | grep microcode kernel/x86/microcode kernel/x86/microcode/GenuineIntel.bin I think this is the same issue as https://issues.redhat.com/browse/RHEL-17902. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: dracut 051-1 ProcVersionSignature: Ubuntu 6.5.0-45.45~22.04.1-generic 6.5.13 Uname: Linux 6.5.0-45-generic x86_64 ApportVersion: 2.20.11-0ubuntu82.6 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: KDE Date: Mon Aug 19 14:41:53 2024 EcryptfsInUse: Yes InstallationDate: Installed on 2015-12-11 (3173 days ago) InstallationMedia: Kubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) PackageArchitecture: all SourcePackage: dracut UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: dracut (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug jammy -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2077328 Title: microcode is not included when building initramfs for kernel 6.8 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dracut/+bug/2077328/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs