Parallel investigation of IncusOS issue #843 across 20 VM deploys confirms
the "invalid crontab expression" error hits 67% of first boots. The bug is
a race condition in the daemon startup — NOT related to ISO/CDN version
mismatch, update downloads, or seed config. Sysext downloads occur on every
first boot even with matching versions.
New tools: investigate-parallel (parallel VM testing), pve-api (Python
Proxmox API helper avoiding bash ! quoting), investigate-boot (sequential
testing), test-boot-reliability (batch reliability testing).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>