[Bug 1842284] Re: initramfs does not copy ehci-platform

[Ike Panhc]

$ zcat /boot/initrd.img-4.15.0-64-generic | cpio -idmv 2> /dev/null
$ find . -name 'ehci*'
./lib/modules/4.15.0-64-generic/kernel/drivers/usb/host/ehci-platform.ko
$ dpkg --list | grep initramfs-tools-core
ii  initramfs-tools-core                  0.122ubuntu8.15                            all          generic modular initramfs generator (core tools)

Thanks. The initramfs-tools-core in -proposed generates initrd with
ehci-platform.

** Tags removed: verification-needed verification-needed-xenial
** Tags added: verification-done verification-done-xenial

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https://bugs.launchpad.net/bugs/1842284

Title:
  initramfs does not copy ehci-platform

Status in initramfs-tools package in Ubuntu:
  Fix Released
Status in initramfs-tools source package in Xenial:
  Fix Committed
Status in initramfs-tools source package in Bionic:
  Fix Released
Status in initramfs-tools source package in Disco:
  Fix Released
Status in initramfs-tools source package in Eoan:
  Fix Released

Bug description:
  [Impact]
  If you install Ubuntu onto USB storage behind a Platform USB host controller, it will not be able to boot because the generated initramfs will not include the host controller driver.

  [Test Case]
  Install to a USB stick attached to platform USB controller and reboot. Booting will fail because it will be unable to find the root file system.

  [Regression Risk]
  Driver is only loaded when system requires ehci-platform, minimizing the impact to all other systems.

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