More information part II : I retry with Ubuntu 18.10, live boot and install => OK Kernel 4.15 but got CPU stuck :( Reboot with nomodeset and did apt upgrade => KO stuck at boot with the lovely purple screen, kernel 4.18.0.20. Seems to be related to initram disk and kernel. How to see any messages ?
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1826065 Title: Can't boot from usb live system to install disco dingo 19.04 Status in linux package in Ubuntu: Confirmed Bug description: I cannot boot from a USB live system with Disco Dingo 19.04 to install Ubuntu. I tried several kernel command line options (nomodeset modprobe.blacklist=nouveau) but nothing seems to work. With acpi=off I can see some output. The boot sequence stops at "Freeing unused kernel image memory". Before, there are some UEFI error messages (Couldn't get UEFI db list, dbx list). I attached a photo of the output. I don't get these errors with 18.10. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1826065/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp