Classic images with certain fstab configurations can end up broken
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| Ubuntu Image |
Triaged
|
Medium
|
Łukasz Zemczak | ||
Bug Description
For classic images, we have a piece of code that looks at fstab in the just-generated rootfs and makes sure that the root partition is present with the right LABEL. It works in such a way that first the fstab is ran through a regex looking for LABEL= entries and, if found, changes the first one to LABEL=writable. Next, it checks if we now finally have a LABEL=writable in fstab and adds a new one if needed.
That works generally for all cases where the rootfs's fstab first entry is the future's writable partition entry. But since it basically only matches for LABEL=, if the fstab has like any other (non-rootfs) filesystem listed as the first one through a LABEL= as well, it will now change it into LABEL=writable.
The fix should be very easy: we need to match for more than just LABEL=, possibly for '/' as the mountpoint (or something very similar).
