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https://github.com/community-scripts/ProxmoxVE.git
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Root cause: silent() (core.func) unconditionally calls set -Eeuo pipefail and trap 'error_handler' ERR after every command. When build_container() intentionally disables error handling for its recovery section, any intermediate call through silent()/ re-enables it. This causes the grep/sed pipeline for missing_cmd extraction to trigger error_handler (grep returns exit code 1 on no match + pipefail = fatal). Fixes: 1. silent(): Save errexit state before disabling, only restore if it was active. Callers that intentionally disabled error handling (e.g. build_container recovery) are no longer silently re-enabled. 2. build.func: Add || true to missing_cmd grep pipeline as defense-in-depth against pipeline failure propagation. 3. build.func: Add explicit set +Eeuo pipefail / trap - ERR after post_update_to_api() call, before error classification grep/sed section. 4. build.func: Remove stale global combined_log variable from variables() that used a different path format (/tmp/install-SESSION-combined.log) than the actual local variable (/tmp/NSAPP-CTID-SESSION.log). The global was never written to and caused confusion when error_handler displayed it.