This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1807429
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: bionic
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https://bugs.launchpad.net/bugs/1807429
Title:
4.15.0-42-generic intel_iommu=on crash on boot
Status in linux package in Ubuntu:
Incomplete
Bug description:
New Ubuntu 18.04.1 LTS (GNU/Linux 4.15.0-42-generic x86_64) installation
dist-upgraded as of Fri Dec 7 17:49:07 GMT 2018
running Dell R440 with Dell Boss card as boot drive
nano /etc/default/grub
->GRUB_CMDLINE_LINUX_DEFAULT="intel_iommu=on"
update-grub
reboot
Error on boot:
gave up waiting for root file system
missing modules
Alert UUID=xxxx does not exist dropping to shell
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