Got this bug too. Steps to reproduce:
1. Download ubuntu-20.04.1-desktop-amd64.iso and verify. 2. Install onto USB stick using Startup Disk Creator. 3. Boot machine from USB stick. Expected results: - Machine boots into live Ubuntu. Actual results: 1. BIOS stuff, as per usual. 2. Grub 2.04 screen, boots "Ubuntu" option by default after a few seconds. 3. Machine hangs with message "[0.XXXXXX] Initramfs unpacking failed: Decoding failed" (where XXXXXX is a different number each time). This message is always followed by 5 lines of really tiny text, completely unreadable on my 4k screen. Machine now appears to be dead, except that: - On one occasion, hitting Enter caused screen to fill with more unreadable tiny text. - On another occasion, after a minute of me doing nothing, machine played a short chip tune! Machine config: - Lenovo Thinkpad X1 Extreme, Gen 2, one year old. - UEFI BIOS Version: N2oet47w (1.34), 2020-08-06. - Firmware is current (as per Lenovo Vantage check, done several days ago). - My BIOS security settings are maxxed out. Notes: - I tried with Secure Boot enabled and disabled; made no difference. - Machine boots fine into a very recent Ubuntu 20.10 beta, using same laptop and USB stick. (Unfortunately, the ROS software won't work on 20.10 yet.) - Just repeating: all was fine with Ubuntu 20.10 beta. But fails with 20.04.1. -- 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/1886769 Title: [ 0.000000] Initramfs unpacking failed: Decoding failed Status in linux package in Ubuntu: Confirmed Bug description: Steps to reproduce: 1. Download MATE Groovy daily (sha256sum = 7d2fdad36b8fcf0409aa0a484755e5fc5ef3798fd256eeebbde905a71ad474b7 ) 2. Insert ISO into VirtualBox with EFI enabled 3. Boot VM Expected results: * VM boots normally Actual results: * VM hangs during early boot with message [ 0.000000] Initramfs unpacking failed: Decoding failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886769/+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