Public bug reported: I used a USB stick tool called Mac Linux USB loader to create a bootable USB stick so that I could install Ubuntu Jammy Desktop on my Mac Pro 5,1 Westmere (circa 2012). I was able to do the same installation and install Ubuntu Focal Desktop on my Mac Pro without issues, but the Ubuntu Jammy ISO would not get to the main installer. After getting past the GRUB menu and the Ubuntu splash screen, it fails with a screen full of messages saying:
/init: line 49: can't open /dev/sr0: No medium found After this stream of messages, it asks to attempt interactive netboot: Unable to find a medium containing a live file system Attempt interactive netboot from a URL? yes no (default yes): Two methods available for IP configuration: * static: for static IP configuration * dhcp: for automatic IP configuration static dhcp (default: dhcp): [Asks for vlan ID and ISO URL, etc. ...] [Connects to cdimage.ubuntu.com and starts downloading jammy-live-server-amd64.iso ...] [Download completes ...] Unable to find a medium containing a live file system BusyBox v1.30.1 (Ubuntu 1:1.30.1-7ubuntu3) built-in shell (ash) Enter 'help for a list of built-in commands. (initramfs) ls /dev/sd* /dev/sdb1 /dev/sdb /dev/sda2 /dev/sda1 /dev/sda (initramfs) cat /proc/version_signature Ubuntu 5.15.0-23.23-generic 5.15.27 ** Affects: ubuntu Importance: Undecided Status: New ** Tags: installer jammy -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1967753 Title: Ubuntu Jammy Desktop ISO installer fails to find live filesystem on Mac Pro 2012 (Mac 5,1 Westmere) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1967753/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs