systemd-boot and GRUB EFI conflict during package configuration.
systemd-boot also fails to configure in chroot (no efivars available).
Using GRUB with shim-signed for UEFI Secure Boot instead.
Changes:
- config/package-lists: Remove systemd-boot, systemd-boot-efi
- tests/unit/secureboot_test.bats: Update test for GRUB instead
Reference: Build failure in binary phase
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The package name in Debian repositories is sbsigntool (singular), not
sbsigntools (plural). This typo was causing ISO builds to fail with:
E: Unable to locate package sbsigntools
Files fixed:
- config/package-lists/knel-football.list.chroot - package list
- tests/unit/secureboot_test.bats - test reference
- docs/TEST-COVERAGE.md - documentation
- docs/PRD.md - requirements documentation
Reference: Security audit FINDING-007 (test coverage)
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Debian partman-crypto does not support preseed configuration for KDF
type, defaulting to PBKDF2. PRD requires Argon2id for its superior
resistance to GPU-based attacks.
Solution: Post-install hook that creates:
- /usr/local/bin/convert-luks-kdf.sh: User-runnable script to convert
PBKDF2 to Argon2id with proper parameters (memory=1GB, parallelism=4)
- /etc/profile.d/knel-kdf-reminder.sh: Login reminder until conversion
- Updated /var/backups/keys/README.txt with conversion instructions
Tests added (3 new):
- Argon2id KDF configuration hook or script exists
- KDF conversion helper script is created
- User receives notification about KDF optimization
Reference: docs/PRD.md encryption requirements
Audit: FINDING-005 (2026-02-20)
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The preseed.cfg creates user 'football' but hooks referenced 'kneluser'.
This inconsistency would cause runtime failures during installation.
Changes:
- config/hooks/installed/encryption-validation.sh: s/kneluser/football/g
- config/hooks/live/usb-automount.sh: s/kneluser/football/g
- config/hooks/installed/install-scripts.sh: s/kneluser/football/g
- tests/unit/encryption-validation_test.bats: Add 5 tests for username consistency
Fixes: FINDING-008 (User account inconsistency)
Reference: PRD.md user account requirements
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Add complete Secure Boot implementation:
- Generate PK/KEK/db keys during ISO build
- Build Unified Kernel Image (UKI) bundling kernel+initramfs+cmdline
- Sign UKI with db key for Secure Boot verification
- Include kernel lockdown mode in cmdline (lockdown=confidentiality)
- Copy .auth files to ISO for UEFI key enrollment
All Secure Boot logic is embedded in run.sh as an inline binary hook
created during the Docker build process - no separate scripts.
Required packages added: efitools, sbsigntools, systemd-boot, binutils
VM template updated with TPM v2.0 for Secure Boot measurements.
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- Remove $defaultignore{ } from LVM partitions (was preventing root FS detection)
- Fix swap minimum size from 100% to 1024
- Use -1 for root max size to fill available space
- Ensure LVM logical volumes are properly recognized inside LUKS container
Fixes: "No root file system is defined" error during installation
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- Add EFI System Partition (ESP) for UEFI boot support
- Add $defaultignore{ } to LVM partitions for proper crypto handling
- Add in_vg{ knel_vg } and lv_name{ } for explicit volume placement
- Change debconf priority from critical to high to allow user password prompts
- Update documentation dates to 2026-02-19
- Update ISO size references from 450 MB to 816 MB
- Update checksums to current values
Fixes installer error "No root file system is defined"
Fixes missing non-root user password prompt
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Package icewm-themes is no longer available in Debian testing.
icewm-common provides the necessary themes as a dependency.
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The preseed file needs to be in config/includes.installer/ for live-build
to embed it into the Debian installer. Previously it was in config/ which
doesn't get picked up by lb build.
- Moved config/preseed.cfg -> config/includes.installer/preseed.cfg
- Updated all test files to reference new path
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PRD fixes:
- Remove duplicate 'Installation Behavior' section
- Fix malformed terminology table (missing pipe separator)
Documentation alignment with FR-006:
- README.md: Change SSH/firewall to client-only, no inbound access
- TEST-COVERAGE.md: Remove 'Firewall allows SSH inbound'
- VERIFICATION-REPORT.md: Fix password config docs to match preseed.cfg
- COMPLIANCE.md: Change 'SSH Hardening' to 'SSH Client-Only'
Test enhancements:
- Expand unit tests for encryption, firewall, security hardening
- Add comprehensive coverage for FR-001 through FR-009 requirements
All changes ensure documentation and tests align with PRD.md FR-006
which requires SSH client-only with no server or inbound access.
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- Changed domain from local to knel.net
- Changed username from kneluser to football
- Removed sudo from user groups (football user not a sudoer)
- Added debconf priority critical to suppress non-essential questions
- Added console-setup/layoutcode and variantcode
- Added popularity-contest participation = false
- Added apt-setup options to skip contrib/non-free/backports prompts
- Added base-installer/kernel/image selection
- Added netcfg/confirm_static
Installation should now only prompt for:
1. Root password
2. User password (football)
3. Encryption passphrase
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- Fix function name: configure_ssh → configure_ssh_client (matches src/)
- Add missing configure_fim call for AIDE File Integrity Monitoring
These functions exist in src/security-hardening.sh but the hook was
calling the wrong name or missing the FIM call entirely.
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Improve code quality by addressing shellcheck warnings
across security-critical scripts.
src/security-hardening.sh:
- Add shellcheck directive for SC2120/SC2119
- Function configure_password_policy() accepts optional args
- Directive documents intentional usage pattern
src/firewall-setup.sh:
- Fix function argument passing in main()
- Properly pass arguments to configure_firewall()
config/hooks/installed/encryption-setup.sh:
- Consolidate echo commands to fix SC2129
- Use single redirect for multiple writes
Remaining warnings are non-critical:
- SC1091: Source files exist at runtime in Docker container
- SC2016: Intentional single quotes for sed pattern
No functional changes - purely code quality improvements.
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Add UEFI Secure Boot packages to enable booting on systems
with Secure Boot enabled:
- shim-signed: Microsoft-signed shim bootloader
- grub-efi-amd64-signed: Signed GRUB EFI bootloader
- grub-efi-amd64-bin: GRUB EFI binaries
- efibootmgr: EFI boot manager utility
This is mandatory for modern UEFI systems that ship with
Secure Boot enabled by default.
Compliance: UEFI Secure Boot specification
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Validate LUKS2 encryption configuration, create user-facing reminder files, MOTD messages, and first-boot check script to ensure encryption requirements are met and users are informed.
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Configure LUKS2 with AES-256-XTS encryption, cryptsetup-initramfs, initramfs modules, key management scripts, and encryption status systemd service for automated encryption setup during installation.
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Configure LUKS2 disk encryption with AES-256-XTS cipher (512-bit key) and Argon2id KDF. Add cryptsetup and pam-pwquality packages. Set secure default passphrase for initial setup.
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- Update disable-package-management.sh with immutable permissions
- Update install-scripts.sh with proper path handling
- Add knel-football.list.chroot package list
- Add desktop shortcuts for VPN configuration
- Add USB automount support
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- Update to ignore KNEL-Football specific build artifacts
- Remove blanket config/ directory ignore
- Add build directories and temporary files
- Add ISO artifacts and checksum patterns
- Add security exclusions for keys and secrets
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- Add security-hardening.sh for system hardening
- Add firewall-setup.sh for nftables configuration
- Add qr-code-import.sh for WireGuard QR scanning
- Add disable-package-management.sh to secure package tools
- Add install-scripts.sh to install source utilities
These hooks implement core security and functionality requirements.
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- Add project directory structure with config, src, tests directories
- Implement run.sh host wrapper script for Docker-based workflow
- Create Dockerfile for build/test environment with live-build
- Add basic live-build configuration with preseed and package lists
- Add .gitignore and .dockerignore files
This establishes the foundation for building the secure Debian ISO.
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- Remove all project files and directories
- Keep git history intact
- Archive documentation in archive-docs/ directory
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Implements minimal, secure login without username display:
1. **LightDM Installation**:
- Added lightdm and lightdm-gtk-greeter packages
- Enabled LightDM service by default
- Set default target to graphical
- Removed .xinitrc direct X boot
2. **Minimal and Secure Greeter**:
- Configured /etc/lightdm/lightdm.conf:
* hide-users=true (no username list displayed)
* show-manual-login=true (manual username entry only)
* allow-guest=false (no guest sessions)
* XDMCP disabled (no remote X sessions)
- Greeter shows only:
* Username field (for manual entry)
* Password field
* Login button
- No account picking, no user list
3. **Security Benefits**:
- No user information leaked before authentication
- Attacker cannot enumerate users
- Manual username required (prevents user enumeration)
- Minimal attack surface (LightDM is lightweight)
- No guest sessions (strict access control)
4. **Removed Direct X Boot**:
- No longer booting directly to IceWM via .xinitrc
- Using proper display manager for authentication
- More secure and standardized login process
Files Updated:
- config/preseed.cfg (LightDM packages, enabled service, late_command)
- config/security-config.sh (LightDM configuration, removed .xinitrc)
This implements the "minimal and secure display manager"
requirement with no usernames displayed and no account picking.
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Major updates for production-ready ISO:
1. **Debian Version**:
- Updated to Debian 13.3.0 stable (released)
- No longer using testing/sid
- Using debian:stable Docker image
2. **Password Complexity Enforcement**:
- Added libpam-pwquality and libpwquality packages
- Password complexity enforced during install via PAM
- Configured in security-config.sh:
* Minimum 12 characters
* Mixed case required
* At least one digit
* At least one special character
* 3 character classes required
- Preseed enforces password checks during installer
3. **Auto-Lock After 1 Minute**:
- Added xautolock and xscreensaver packages
- Configured in .xinitrc for auto-lock after 1 minute idle
- Uses xscreensaver-command -lock for screen locking
4. **USB Drive Mounting**:
- Added udisks2, gvfs-backends, gvfs-fuse packages
- Created polkit rules for USB mounting
- User added to plugdev and cdrom groups
- USB drives mountable via file manager
5. **WiFi and Bluetooth Disabling**:
- Created config/disable-wifi-bt.sh script
- Blacklists all WiFi kernel modules
- Blacklists all Bluetooth kernel modules
- Masks bluetooth service
- Removes bluez packages
6. **First-Boot Verification**:
- Created scripts/verify-system.sh
- Created config/football-first-boot.service
- Verifies all functional requirements
- Runs once on first boot
- Prevents re-running via status file
7. **ISO Build System**:
- Updated to use Debian 13.3.0 stable ISO
- Scripts and config baked into ISO
- Docker-based build process
- Corrected ISO filename throughout
8. **Preseed Configuration**:
- Manual user creation (not automated)
- Manual password prompts (enforced via PAM)
- Late_command applies all security configs
- Copies verification script to target
- Enables first-boot verification service
Files Added:
- config/disable-wifi-bt.sh (WiFi/BT disabling)
- config/security-config.sh (password complexity, auto-lock, USB mounting)
- config/football-first-boot.service (first-boot verification systemd service)
- scripts/verify-system.sh (comprehensive verification script)
Files Updated:
- config/preseed.cfg (password enforcement, security packages, late_command)
- scripts/build-iso.sh (Debian 13.3.0, correct filenames)
- docs/FUNCTIONAL-REQUIREMENTS.md (verification strategy)
- AGENTS.md (documentation references)
- README.md (documentation references)
All requirements from this session implemented:
✓ Password complexity enforced during install
✓ Auto-lock after 1 minute idle
✓ USB drive mounting enabled
✓ WiFi/Bluetooth disabled
✓ First-boot verification
✓ Scripts baked into ISO (no internet needed)
✓ All packages in ISO
✓ Debian 13.3.0 stable
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Adds ISO creation capability for bare metal deployment:
- preseed.cfg: Debian installer automation file
- Automates all installation steps
- User only sets username/password, root password, target disk
- Installs minimal package set
- build-iso.sh: Docker-based ISO build script
- Downloads Debian 13 netboot ISO
- Extracts ISO contents
- Injects preseed configuration
- Creates custom football-installer.iso
- All work done in Docker container
ISO enables easy bare metal deployment with minimal user input.
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Add complete build infrastructure for football secure access system:
- Minimal Debian base with only IceWM and Remmina
- WireGuard-only networking with strict firewall (eth0 allows only WireGuard)
- All network traffic routed through mandatory VPN tunnel
- Secure Boot enforced for physical deployments
- Zero remote access - SSH, telnet disabled and blocked
- AppArmor, auditd, and fail2ban for security hardening
Build system generates both VM (qcow2) and physical (raw) images.
WireGuard endpoint IP and port configurable via build script variables.
Includes:
- Package list with minimal dependencies
- System hardening scripts
- WireGuard client and server configuration tools
- Comprehensive documentation (README.md, QUICKSTART.md)
- systemd services for firewall enforcement
- User environment with automatic IceWM startup
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