@vicamo, "system just hangs unless manually powered off. Is this correct?": Yes !
1. It's work ! 2. Yes, I attach the result ** Attachment added: "dmesg | grep microcode" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853369/+attachment/5327645/+files/dmesg-microcode -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1853369 Title: [19.10] Boot hangs at "loading initial ramdisk" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1853369/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs