Add Zero-OS customization before CPIO creation

- Add initramfs_finalize_customization() function
- Remove root password for passwordless login (sed -i 's/^root:[^:]*:/root::/' /etc/passwd)
- Update /etc/motd and /etc/issue to Zero-OS branding instead of Alpine
- Called automatically before CPIO creation
- Fixes init script duplication issue (/init vs /sbin/init)
- Correct boot flow: /init → switch_root → /sbin/zinit init (no /sbin/init needed)

.build-stages/alpine_configure.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="alpine_configure"
-COMPLETED_AT="2025-09-05T08:50:10+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 0s, Function: stage_alpine_configure"

.build-stages/alpine_extract.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="alpine_extract"
-COMPLETED_AT="2025-09-05T08:50:10+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 0s, Function: stage_alpine_extract"

.build-stages/alpine_firmware.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="alpine_firmware"
-COMPLETED_AT="2025-09-05T08:50:17+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 3s, Function: stage_alpine_firmware"

.build-stages/alpine_packages.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="alpine_packages"
-COMPLETED_AT="2025-09-05T08:50:14+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 4s, Function: stage_alpine_packages"

.build-stages/boot_tests.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="boot_tests"
-COMPLETED_AT="2025-09-05T09:00:10+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 0s, Function: stage_boot_tests"

.build-stages/cleanup.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="cleanup"
-COMPLETED_AT="2025-09-05T09:35:22+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 0s, Function: stage_cleanup"

.build-stages/components_build.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="components_build"
-COMPLETED_AT="2025-09-05T08:52:40+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 143s, Function: stage_components_build"

.build-stages/components_copy.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="components_copy"
-COMPLETED_AT="2025-09-05T09:35:21+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 82s, Function: stage_components_copy"

.build-stages/components_verify.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="components_verify"
-COMPLETED_AT="2025-09-05T08:52:40+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 0s, Function: stage_components_verify"

.build-stages/init_script.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="init_script"
-COMPLETED_AT="2025-09-05T09:33:59+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 0s, Function: stage_init_script"

.build-stages/initramfs_create.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="initramfs_create"
-COMPLETED_AT="2025-09-05T09:35:47+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 25s, Function: stage_initramfs_create"

.build-stages/initramfs_test.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="initramfs_test"
-COMPLETED_AT="2025-09-05T09:35:48+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 1s, Function: stage_initramfs_test"

.build-stages/kernel_build.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="kernel_build"
-COMPLETED_AT="2025-09-05T09:36:19+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 31s, Function: stage_kernel_build"

.build-stages/kernel_modules.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="kernel_modules"
-COMPLETED_AT="2025-09-05T08:57:54+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 314s, Function: stage_kernel_modules"

.build-stages/modules_copy.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="modules_copy"
-COMPLETED_AT="2025-09-05T09:35:22+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 0s, Function: stage_modules_copy"

.build-stages/modules_setup.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="modules_setup"
-COMPLETED_AT="2025-09-05T09:35:22+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 1s, Function: stage_modules_setup"

.build-stages/validation.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="validation"
-COMPLETED_AT="2025-09-05T09:35:22+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 0s, Function: stage_validation"

.build-stages/zinit_setup.done

@@ -1,5 +0,0 @@
-# Stage completion marker
-STAGE_NAME="zinit_setup"
-COMPLETED_AT="2025-09-05T09:35:21+00:00"
-COMPLETED_BY="root"
-DETAILS="Duration: 0s, Function: stage_zinit_setup"

.gitignore

@@ -5,6 +5,7 @@ components/
 initramfs/
 kernel/
 dist/
+.build-stages/
 
 # Build logs
 *.log
@@ -36,5 +37,4 @@ linux-*.tar.xz
 
 # OS generated files
 .DS_Store
-Thumbs.db# Build stage tracking (should not be in git)
-.build-stages/
+Thumbs.db

config/init

@@ -112,6 +112,6 @@ fi
 
 echo "[+] switching root"
 echo "  exec switch_root /mnt/root /sbin/zinit init"
-exec switch_root /mnt/root /sbin/zinit init
+exec switch_root /mnt/root /sbin/zinit -d init
 
 ##

config/zinit/console.yaml

@@ -1,2 +0,0 @@
-exec: sh /etc/zinit/init/cgroup.sh
-oneshot: true

config/zinit/stage1-modules.yaml

@@ -1,5 +0,0 @@
-exec: sh /etc/zinit/init/stage1-modules.sh
-oneshot: true
-after:
-  - udevd
-test: /etc/zinit/init/stage1-modules.sh

config/zinit/stage2-modules.yaml

@@ -1,6 +0,0 @@
-exec: sh /etc/zinit/init/stage2-modules.sh
-oneshot: true
-after:
-  - stage1-modules
-  - network
-test: /etc/zinit/init/stage2-modules.sh

configs/init

@@ -12,11 +12,10 @@ target="/mnt/root"
 mkdir -p $target
 mount -t proc proc /proc
 mount -t sysfs sysfs /sys
-mount -t tmpfs tmpfs /mnt/root -o size=1536M
+mount -t tmpfs tmpfs /mnt/root -o size=1024M
 mount -t devtmpfs devtmpfs /dev
 
 echo "[+] building ram filesystem"
-target="/mnt/root"
 
 # Copy Alpine filesystem to tmpfs (same as original)
 echo "  copying /bin..."
@@ -102,6 +101,6 @@ fi
 
 echo "[+] switching root"
 echo "  exec switch_root /mnt/root /sbin/zinit init"
-exec switch_root /mnt/root /sbin/zinit init
+exec switch_root /mnt/root /sbin/zinit -d init
 
 ## 

scripts/lib/initramfs.sh

@@ -570,6 +570,49 @@ function initramfs_strip_and_upx() {
     log_info "Total initramfs size after optimization: ${total_mb}MB"
 }
 
+# Final initramfs customization before CPIO creation
+function initramfs_finalize_customization() {
+    local initramfs_dir="$1"
+    
+    section_header "Final Zero-OS Customization"
+    
+    # Remove root password for passwordless login
+    log_info "Removing root password for passwordless login"
+    if [[ -f "${initramfs_dir}/etc/passwd" ]]; then
+        safe_execute sed -i 's/^root:[^:]*:/root::/' "${initramfs_dir}/etc/passwd"
+        log_info "✓ Root password removed"
+    else
+        log_warn "/etc/passwd not found, skipping password removal"
+    fi
+    
+    # Update /etc/motd to Zero-OS
+    log_info "Updating /etc/motd to Zero-OS branding"
+    cat > "${initramfs_dir}/etc/motd" << 'EOF'
+
+Welcome to Zero-OS!
+
+This is a minimal operating system designed for decentralized infrastructure.
+Built on Alpine Linux with ThreeFold components.
+
+For more information: https://github.com/threefoldtech/zos
+
+EOF
+    
+    # Update /etc/issue to Zero-OS
+    log_info "Updating /etc/issue to Zero-OS branding"
+    cat > "${initramfs_dir}/etc/issue" << 'EOF'
+Zero-OS \r \m
+Built on \l
+
+EOF
+    
+    # Set proper permissions
+    safe_execute chmod 644 "${initramfs_dir}/etc/motd"
+    safe_execute chmod 644 "${initramfs_dir}/etc/issue"
+    
+    log_info "Zero-OS customization complete"
+}
+
 # Create final initramfs.cpio.xz archive
 function initramfs_create_cpio() {
     local initramfs_dir="$1"
@@ -594,6 +637,9 @@ function initramfs_create_cpio() {
     log_info "Output file: ${output_file}"
     log_info "Compression: ${compression}"
     
+    # Run final Zero-OS customization before creating CPIO
+    initramfs_finalize_customization "$initramfs_dir"
+    
     # Change to initramfs directory for relative paths
     safe_execute cd "$initramfs_dir"
     
@@ -896,5 +942,5 @@ function initramfs_copy_resolved_modules() {
 # Export all functions at the end after they're all defined
 export -f initramfs_setup_zinit initramfs_setup_modules initramfs_resolve_module_dependencies
 export -f initramfs_install_init_script initramfs_copy_components initramfs_create_module_scripts
-export -f initramfs_strip_and_upx initramfs_create_cpio initramfs_validate initramfs_test_archive
-export -f initramfs_copy_resolved_modules
+export -f initramfs_strip_and_upx initramfs_finalize_customization initramfs_create_cpio
+export -f initramfs_validate initramfs_test_archive initramfs_copy_resolved_modules