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[Bug 2126559] [NEW] Missing usb/host kernel module in the initramfs

 

Public bug reported:

On specific intel hardware (GNR), the Ubuntu ISO 24.04.3 doesn't boot when selecting the hwe kernel.
After looking at the initrd generated, the hwe-initrd is missing kernel/drivers/usb/host/xhci-pci-renesas.ko.zst:

$ lsinitramfs casper/initrd | grep kernel/drivers/usb/host/
usr/lib/modules/6.8.0-71-generic/kernel/drivers/usb/host/xhci-pci-renesas.ko.zst
usr/lib/modules/6.8.0-71-generic/kernel/drivers/usb/host/xhci-pci.ko.zst
usr/lib/modules/6.8.0-71-generic/kernel/drivers/usb/host/xhci-plat-hcd.ko.zst
$ lsinitramfs casper/hwe-initrd | grep kernel/drivers/usb/host/
usr/lib/modules/6.14.0-27-generic/kernel/drivers/usb/host/xhci-plat-hcd.ko.zst

xhci-pci module is also not there as it's in 6.14 a builtin.

As depmod is used to find dependencies across modules, I guess it is
missing dependencies for builtins.

In 6.8.0 we can find in the associated modules.dep:
kernel/drivers/usb/host/xhci-pci.ko.zst: kernel/drivers/usb/host/xhci-pci-renesas.ko.zst
But it's not the case in 6.14.0.

Related bug:
- https://bugs.launchpad.net/cisco-ucs-server/+bug/2121594
- https://bugs.launchpad.net/ubuntu/+bug/2124218

** Affects: initramfs-tools (Ubuntu)
     Importance: High
         Status: New

** Changed in: initramfs-tools (Ubuntu)
   Importance: Undecided => High

** Description changed:

  On specific intel hardware (GNR), the Ubuntu ISO 24.04.3 doesn't boot when selecting the hwe kernel.
  After looking at the initrd generated, the hwe-initrd is missing kernel/drivers/usb/host/xhci-pci-renesas.ko.zst:
  
  $ lsinitramfs casper/initrd | grep kernel/drivers/usb/host/
  usr/lib/modules/6.8.0-71-generic/kernel/drivers/usb/host/xhci-pci-renesas.ko.zst
  usr/lib/modules/6.8.0-71-generic/kernel/drivers/usb/host/xhci-pci.ko.zst
  usr/lib/modules/6.8.0-71-generic/kernel/drivers/usb/host/xhci-plat-hcd.ko.zst
- $ lsinitramfs casper/hwe-initrd | grep kernel/drivers/usb/host/ 
+ $ lsinitramfs casper/hwe-initrd | grep kernel/drivers/usb/host/
  usr/lib/modules/6.14.0-27-generic/kernel/drivers/usb/host/xhci-plat-hcd.ko.zst
  
  xhci-pci module is also not there as it's in 6.14 a builtin.
  
- 
  As depmod is used to find dependencies across modules, but is missing dependencies for builtins.
  In 6.8.0 we can find in the associated modules.dep:
  kernel/drivers/usb/host/xhci-pci.ko.zst: kernel/drivers/usb/host/xhci-pci-renesas.ko.zst
- But not in 6.14.0.
- 
+ But it's not the case in 6.14.0.
  
  Related bug:
  - https://bugs.launchpad.net/cisco-ucs-server/+bug/2121594
  - https://bugs.launchpad.net/ubuntu/+bug/2124218

** Description changed:

  On specific intel hardware (GNR), the Ubuntu ISO 24.04.3 doesn't boot when selecting the hwe kernel.
  After looking at the initrd generated, the hwe-initrd is missing kernel/drivers/usb/host/xhci-pci-renesas.ko.zst:
  
  $ lsinitramfs casper/initrd | grep kernel/drivers/usb/host/
  usr/lib/modules/6.8.0-71-generic/kernel/drivers/usb/host/xhci-pci-renesas.ko.zst
  usr/lib/modules/6.8.0-71-generic/kernel/drivers/usb/host/xhci-pci.ko.zst
  usr/lib/modules/6.8.0-71-generic/kernel/drivers/usb/host/xhci-plat-hcd.ko.zst
  $ lsinitramfs casper/hwe-initrd | grep kernel/drivers/usb/host/
  usr/lib/modules/6.14.0-27-generic/kernel/drivers/usb/host/xhci-plat-hcd.ko.zst
  
  xhci-pci module is also not there as it's in 6.14 a builtin.
  
- As depmod is used to find dependencies across modules, but is missing dependencies for builtins.
+ As depmod is used to find dependencies across modules, I guess it is
+ missing dependencies for builtins.
+ 
  In 6.8.0 we can find in the associated modules.dep:
  kernel/drivers/usb/host/xhci-pci.ko.zst: kernel/drivers/usb/host/xhci-pci-renesas.ko.zst
  But it's not the case in 6.14.0.
  
  Related bug:
  - https://bugs.launchpad.net/cisco-ucs-server/+bug/2121594
  - https://bugs.launchpad.net/ubuntu/+bug/2124218

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https://bugs.launchpad.net/bugs/2126559

Title:
  Missing usb/host kernel module in the initramfs

Status in initramfs-tools package in Ubuntu:
  New

Bug description:
  On specific intel hardware (GNR), the Ubuntu ISO 24.04.3 doesn't boot when selecting the hwe kernel.
  After looking at the initrd generated, the hwe-initrd is missing kernel/drivers/usb/host/xhci-pci-renesas.ko.zst:

  $ lsinitramfs casper/initrd | grep kernel/drivers/usb/host/
  usr/lib/modules/6.8.0-71-generic/kernel/drivers/usb/host/xhci-pci-renesas.ko.zst
  usr/lib/modules/6.8.0-71-generic/kernel/drivers/usb/host/xhci-pci.ko.zst
  usr/lib/modules/6.8.0-71-generic/kernel/drivers/usb/host/xhci-plat-hcd.ko.zst
  $ lsinitramfs casper/hwe-initrd | grep kernel/drivers/usb/host/
  usr/lib/modules/6.14.0-27-generic/kernel/drivers/usb/host/xhci-plat-hcd.ko.zst

  xhci-pci module is also not there as it's in 6.14 a builtin.

  As depmod is used to find dependencies across modules, I guess it is
  missing dependencies for builtins.

  In 6.8.0 we can find in the associated modules.dep:
  kernel/drivers/usb/host/xhci-pci.ko.zst: kernel/drivers/usb/host/xhci-pci-renesas.ko.zst
  But it's not the case in 6.14.0.

  Related bug:
  - https://bugs.launchpad.net/cisco-ucs-server/+bug/2121594
  - https://bugs.launchpad.net/ubuntu/+bug/2124218

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