casper: need to handle multiple overlayfs layers differently for later kernels
Bug #1481044 reported by
Andy Whitcroft
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| casper (Ubuntu) |
In Progress
|
Medium
|
Andy Whitcroft | ||
Bug Description
Overlayfs handles multiple layers in a different manner and limits layer count. Need to suport that.
| Changed in casper (Ubuntu): | |
| status: | New → Triaged |
| importance: | Undecided → Medium |
| assignee: | nobody → Andy Whitcroft (apw) |
| milestone: | none → ubuntu-15.08 |
Revision history for this message
| Andy Whitcroft (apw) wrote | #1 |
| summary: |
- casper: need to handle multiple layers differently for later kernels + casper: need to handle multiple overlayfs layers differently for later + kernels |
| Changed in casper (Ubuntu): | |
| status: | Triaged → In Progress |
| Changed in casper (Ubuntu): | |
| milestone: | ubuntu-15.08 → ubuntu-15.09 |
| Changed in casper (Ubuntu): | |
| milestone: | ubuntu-15.09 → ubuntu-15.10 |
| Changed in casper (Ubuntu): | |
| milestone: | ubuntu-15.10 → ubuntu-15.11 |
| Changed in casper (Ubuntu): | |
| milestone: | ubuntu-15.11 → ubuntu-15.12 |
| Changed in casper (Ubuntu): | |
| milestone: | ubuntu-15.12 → ubuntu-16.01 |
| Changed in casper (Ubuntu): | |
| milestone: | ubuntu-16.01 → ubuntu-16.02 |
| Changed in casper (Ubuntu): | |
| milestone: | ubuntu-16.02 → ubuntu-16.03 |
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The newer overlayfs implementations support direct mounting of multiple lower read-only layers via a colon (:) separated list in lowerdir= specifier. We need to prepare a list for this and try it before the current multiple overlaid mounts mode which is currently limited to two layers.