cproudlock 2ac88a6c1b Blancco: back to Ubuntu-kernel switch_root; track grub-blancco.cfg in git ...

Two changes in one:

1. grub-blancco.cfg reverts to booting vmlinuz-ubuntu + kexec-initrd.img
   (the switch_root path from commit dd2fec5). b7cd097 had switched
   back to Blancco's native vmlinuz-bde-linux via TFTP for "hardware
   compat," but that turned out to regress on modern Dell fleet
   hardware - Blancco's packaged kernel lacks igc (Intel I225/I226 on
   Latitude 5330/5440, Pro-series, newer OptiPlex). Symptom was
   successful TFTP fetch of kernel+initrd, then silence at the Blancco
   UI ("no network card found") because the rootfs HTTP fetch has no
   NIC to use.

   The switch_root initramfs built by the Ansible playbook now carries
   igc, bnxt_en, r8169, atlantic, and other modern NIC modules, so the
   Ubuntu kernel path reliably finds a working NIC across the whole
   fleet before HTTP-fetching airootfs.sfs and kexec'ing into Blancco.

   Native kernel still runs under Blancco's control after kexec - only
   the *loader* kernel changes.

   The grubx64.efi binary (embedding this config via grub-mkstandalone)
   was rebuilt and pushed to /var/www/html/blancco/ on both PXE servers
   (.1 and .2). Old binary kept as grubx64.efi.bak-<timestamp> on each.

2. .gitignore: negate boot-tools/blancco/grub-blancco.cfg so this one
   file is version-controlled. boot-tools/ is otherwise local cache
   artifacts (kernel/initrd/sfs extracted from Blancco ISO, grubx64.efi
   built output). grub-blancco.cfg is source-of-truth and must not be
   re-derived; any new PXE server build needs the exact same content
   or the Blancco boot chain regresses.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-04-22 13:23:09 -04:00

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