From 87e78e230e732a1b73156af91d45ff322c23d549 Mon Sep 17 00:00:00 2001
From: Mikhail Chusavitin <mchusavitin@mchusmbp.local>
Date: Tue, 12 May 2026 18:28:54 +0300
Subject: [PATCH] Fix ISO build: truncate volume ID to 32 chars (xorriso limit)

EASY_BEE_NVIDIA_LEGACY_V<date> is 33 characters; ISO 9660 volid is
limited to 32. Compute the maximum token length dynamically from the
prefix length and trim ISO_VERSION_LABEL_TOKEN with cut before
assembling BEE_ISO_VOLUME. All four variants now fit within the limit.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 iso/builder/build.sh | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/iso/builder/build.sh b/iso/builder/build.sh
index 673ad1e..fe2ba68 100755
--- a/iso/builder/build.sh
+++ b/iso/builder/build.sh
@@ -1688,7 +1688,12 @@ echo "=== building ISO (variant: ${BUILD_VARIANT}) ==="
 
 # Export for auto/config
 BEE_GPU_VENDOR_UPPER="$(echo "${BUILD_VARIANT}" | tr 'a-z-' 'A-Z_')"
-BEE_ISO_VOLUME="EASY_BEE_${BEE_GPU_VENDOR_UPPER}_V${ISO_VERSION_LABEL_TOKEN}"
+# ISO 9660 volume ID is limited to 32 characters; truncate the version token to fit.
+_vol_prefix="EASY_BEE_${BEE_GPU_VENDOR_UPPER}_V"
+_max_token=$(( 32 - ${#_vol_prefix} ))
+_vol_token="$(printf '%s' "${ISO_VERSION_LABEL_TOKEN}" | cut -c1-${_max_token})"
+BEE_ISO_VOLUME="${_vol_prefix}${_vol_token}"
+unset _vol_prefix _max_token _vol_token
 export BEE_GPU_VENDOR_UPPER BEE_ISO_VOLUME
 
 cd "${LB_DIR}"