debootstrap creates a minimal chroot without ca-certificates, causing
apt-get update to fail TLS verification for the NVIDIA CUDA apt source:
"No system certificates available. Try installing ca-certificates."
Add ca-certificates to --bootstrap-packages so it is present before
lb chroot_archives configures the NVIDIA HTTPS source and runs apt-get update.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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