support compressed kernels on arm64
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
debian-installer (Ubuntu) |
Fix Released
|
High
|
dann frazier | ||
Xenial |
Fix Released
|
High
|
dann frazier | ||
flash-kernel (Debian) |
New
|
Unknown
|
|||
flash-kernel (Ubuntu) |
Fix Released
|
High
|
Kaelan Harrison | ||
Xenial |
Fix Released
|
High
|
dann frazier | ||
linux (Ubuntu) |
Fix Released
|
High
|
dann frazier | ||
linux-hwe-edge (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Xenial |
Fix Released
|
High
|
Andy Whitcroft |
Bug Description
[Impact]
Ubuntu kernels >= hwe-y (4.8) will no longer boot on xgene/uboot systems. The image size appears to have outgrown the defined firmware region, and u-boot will error out with a checksum mismatch error. A solution for this is to start shipping a compressed kernel (Image.gz target). flash-kernel needs updating to detect a compressed kernel and set the appropriate uImage compression flag. Similarly, d-i needs updating because it does it's own uImage generation.
[Test Case]
Boot an hwe-y kernel on an xgene/uboot system (APM Mustang, HP ProLiant m400).
[Regression Risk]
The necessary code is in place and in-use for yakkety, and no issues have been discovered there. The SRU involves clean cherry-picks of that code for d-i & f-k. The kernel side needs to be modified to pull in the correct version of flash-kernel for xenial.
Related branches
Changed in flash-kernel (Debian): | |
status: | Unknown → New |
summary: |
- flash-kernel should support compressed kernels + support compressed kernels on arm64 |
Changed in debian-installer (Ubuntu): | |
status: | New → Fix Released |
Changed in flash-kernel (Ubuntu Xenial): | |
status: | New → Confirmed |
Changed in linux (Ubuntu): | |
status: | New → In Progress |
assignee: | nobody → dann frazier (dannf) |
Changed in linux (Ubuntu Xenial): | |
status: | New → Triaged |
Changed in flash-kernel (Ubuntu Xenial): | |
status: | Confirmed → Triaged |
Changed in debian-installer (Ubuntu Xenial): | |
status: | New → Triaged |
Changed in linux (Ubuntu Xenial): | |
assignee: | nobody → Andy Whitcroft (apw) |
no longer affects: | linux (Ubuntu Xenial) |
Changed in linux-hwe-edge (Ubuntu Xenial): | |
assignee: | nobody → Andy Whitcroft (apw) |
Changed in flash-kernel (Ubuntu Xenial): | |
assignee: | nobody → dann frazier (dannf) |
status: | Triaged → In Progress |
description: | updated |
Changed in debian-installer (Ubuntu Xenial): | |
assignee: | nobody → dann frazier (dannf) |
status: | Triaged → Fix Committed |
importance: | Undecided → High |
Changed in debian-installer (Ubuntu): | |
importance: | Undecided → High |
Changed in flash-kernel (Ubuntu): | |
importance: | Undecided → High |
Changed in flash-kernel (Ubuntu Xenial): | |
importance: | Undecided → High |
Changed in flash-kernel (Ubuntu): | |
assignee: | nobody → dann frazier (dannf) |
Changed in debian-installer (Ubuntu): | |
assignee: | nobody → dann frazier (dannf) |
Changed in linux (Ubuntu): | |
importance: | Undecided → High |
Changed in linux-hwe-edge (Ubuntu Xenial): | |
importance: | Undecided → High |
Changed in flash-kernel (Ubuntu): | |
assignee: | dann frazier (dannf) → Kaelan Harrison (flyboy88) |
Changed in linux-hwe-edge (Ubuntu Xenial): | |
status: | New → Fix Released |
Changed in linux-hwe-edge (Ubuntu): | |
status: | New → Fix Released |
One comment on the patch - it adds a new dependency on the "file" package. So, if this method is used, then we'll also need to add it to debian/control.