Thanks for all the testing, Chris. It leaves me a little baffled. That said, to Joseph et al, two questions:
1. This seems to be the same messages from 1794922 but slightly different symptoms. Should they be considered as the same? 2. With the kernel apparently working in Bionic, that suggests some sort of regression in some component outside the kernel that is calling on the USB. What might be likely candidates? -- 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/1795092 Title: xubuntu 18.10 daily image (x86) fails to boot - initramfs Status in linux package in Ubuntu: Confirmed Status in linux source package in Cosmic: Confirmed Bug description: x86 daily image (32bit) XUBUNTU 18.10 - booted & ran fine on dell latitude d610 - booted & ran fine on ibm thinkpad t43 fails on - hp dc7700 small form factor desktop - dell 755 desktop - lenovo thinkpad x201 I don't get the "try xubuntu / install xubuntu" screen, instead it eventually drops to ---- "BusyBox v1.27.2 (Ubuntu 1:1.27.2-2ubuntu4) built-in shell (ash) Enter 'help' for a list of built-in commands (initramfs) Unable to find a medium containing a live file system ---- Note: I typed the messages in so typos may exist I suspect it's the same issue as https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1794922 where Walter (wxl) gave a possible link to http://debian.2.n7.nabble.com/Bug-908924-dma-direct-map-sg-overflow- on-USB-access-after-upgrade-to-kernel-4-18-td4387757.html I've been testing xubuntu 18.10 daily images for awhile (but not logging on qa-tracker - my bad, sorry!!!) without issue on t43 & d610, and only rarely booting on other boxes (like 755/dc7700/..) It may have been ~15-20 days since last tested on dell 755; but it worked fine back then (& prior) but due to my QA-tracking omission, we can't be exact - sorry again! To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795092/+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