[Bug 1906551] [NEW] uc20 armhf image does not boot on rpi4-8GB

[Paul Larson]

Public bug reported:

The image can be found here: http://cdimage.ubuntu.com/ubuntu-core/20
/dangerous-beta/20201202.1/ubuntu-core-20-armhf+raspi.img.xz

This image seems to be booting fine on other RPI devices, including other RPI4 devices with 4/2/1GB
Also, the arm64 image boots fine on this device. It's just the combination of armhf image on rpi4b-8GB that seems to fail.

Here's all I got from serial when it tries to boot:

U-Boot 2020.10+dfsg-1ubuntu0~20.04.1 (Nov 12 2020 - 17:05:18 +0000)

DRAM:  B
MMC:   mmcnr at 7e300000: 1, emmc2 at 7e340000: 0
Loading Environment from FAT... In:    serial
Out:   serial
Err:   serial
Net:   eth0: ethernet at 7d580000
PCIe BRCM: link up, 5.0 Gbps x1 (SSC)
starting USB...
Bus xhci_pci: probe failed, error -110
No working controllers found

** Affects: u-boot (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: uc20

** Tags added: uc20

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https://bugs.launchpad.net/bugs/1906551

Title:
  uc20 armhf image does not boot on rpi4-8GB

Status in u-boot package in Ubuntu:
  New

Bug description:
  The image can be found here: http://cdimage.ubuntu.com/ubuntu-core/20
  /dangerous-beta/20201202.1/ubuntu-core-20-armhf+raspi.img.xz

  This image seems to be booting fine on other RPI devices, including other RPI4 devices with 4/2/1GB
  Also, the arm64 image boots fine on this device. It's just the combination of armhf image on rpi4b-8GB that seems to fail.

  Here's all I got from serial when it tries to boot:

  U-Boot 2020.10+dfsg-1ubuntu0~20.04.1 (Nov 12 2020 - 17:05:18 +0000)

  DRAM:  B
  MMC:   mmcnr at 7e300000: 1, emmc2 at 7e340000: 0
  Loading Environment from FAT... In:    serial
  Out:   serial
  Err:   serial
  Net:   eth0: ethernet at 7d580000
  PCIe BRCM: link up, 5.0 Gbps x1 (SSC)
  starting USB...
  Bus xhci_pci: probe failed, error -110
  No working controllers found

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