forked from tfgrid/zosbuilder
Jan De Landtsheer
2fba2bd4cd
initramfs: anchor relative paths to PROJECT_ROOT in [bash.initramfs_validate()](scripts/lib/initramfs.sh:799) and [bash.initramfs_create_cpio()](scripts/lib/initramfs.sh:688) to avoid CWD drift. Add diagnostics logs. kernel: anchor kernel output path to PROJECT_ROOT in [bash.kernel_build_with_initramfs()](scripts/lib/kernel.sh:174) to ensure dist/vmlinuz.efi is under PROJECT_ROOT/dist. helper: add [scripts/rebuild-after-zinit.sh](scripts/rebuild-after-zinit.sh) to incrementally rebuild after zinit/modules.conf/init changes. Default: initramfs-only (recreates cpio). Flags: --with-kernel, --refresh-container-mods, --run-tests. Uses --rebuild-from=initramfs_create when rebuilding kernel. init: add early debug shell on kernel param initdebug=true; prefer /init-debug when present else spawn /bin/sh -l. See [config/init](config/init:1). modules(stage1): add USB keyboard support (HID + host controllers) in [config/modules.conf](config/modules.conf:1): usbhid, hid_generic, hid, xhci/ehci/ohci/uhci.
140 lines
3.5 KiB
Bash
Executable File
140 lines
3.5 KiB
Bash
Executable File
#!/bin/sh -x
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# Alpine-based Zero-OS Init Script
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# Maintains identical flow to original busybox version
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if [ ! -c /dev/console ]; then
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mknod /dev/console c 5 1
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fi
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# Redirect output to console explicitly
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exec > /dev/console 2>&1
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echo ""
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echo "============================================"
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echo "== ZERO-OS ALPINE INITRAMFS =="
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echo "============================================"
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echo "[+] creating ram filesystem"
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target="/mnt/root"
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mkdir -p $target
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mount -t proc proc /proc
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mount -t sysfs sysfs /sys
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mount -t tmpfs tmpfs /mnt/root -o size=1536M
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mount -t devtmpfs devtmpfs /dev
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mkdir -p /dev/pts
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mount -t devpts devpts /dev/pts
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# Early debug shell if kernel parameter initdebug=true is present
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if grep -qw "initdebug=true" /proc/cmdline; then
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echo "[+] initdebug=true detected; starting emergency shell. Type 'exit' to continue boot."
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/bin/sh -l
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fi
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echo "[+] building ram filesystem"
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# Copy Alpine filesystem to tmpfs (same as original)
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echo " copying /bin..."
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cp -ar /bin $target
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echo " copying /etc..."
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cp -ar /etc $target
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echo " copying /lib..."
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cp -ar /lib* $target
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echo " copying /usr..."
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cp -ar /usr $target
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echo " copying /root..."
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cp -ar /root $target
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echo " copying /sbin..."
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cp -ar /sbin $target
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echo " copying /tmp..."
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cp -ar /tmp $target
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echo " copying /var..."
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cp -ar /var $target
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echo " copying /run..."
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cp -ar /run $target
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# Create essential directories
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mkdir -p $target/dev
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mkdir -p $target/sys
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mkdir -p $target/proc
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mkdir -p $target/mnt
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# Mount filesystems in tmpfs
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mount -t proc proc $target/proc
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mount -t sysfs sysfs $target/sys
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mount -t devtmpfs devtmpfs $target/dev
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# Mount devpts for terminals
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mkdir -p $target/dev/pts
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mount -t devpts devpts $target/dev/pts
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echo "[+] setting environment"
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export PATH
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echo "[+] probing drivers"
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# Use Alpine's udev instead of busybox udevadm
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if [ -x /sbin/udevd ]; then
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echo " starting udevd..."
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udevd --daemon
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echo " triggering device discovery..."
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udevadm trigger --action=add --type=subsystems
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udevadm trigger --action=add --type=devices
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udevadm settle
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echo " stopping udevd..."
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kill $(pidof udevd) || true
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else
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echo " warning: udevd not found, skipping hardware detection"
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fi
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echo "[+] loading essential drivers"
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# Load core drivers for storage and network
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modprobe btrfs 2>/dev/null || true
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modprobe fuse 2>/dev/null || true
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modprobe overlay 2>/dev/null || true
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# Load storage drivers
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modprobe ahci 2>/dev/null || true
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modprobe nvme 2>/dev/null || true
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modprobe virtio_blk 2>/dev/null || true
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modprobe virtio_scsi 2>/dev/null || true
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modprobe virtio_pci 2>/dev/null || true
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# Load network drivers
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modprobe virtio_net 2>/dev/null || true
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modprobe e1000 2>/dev/null || true
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modprobe e1000e 2>/dev/null || true
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echo "[+] loading USB keyboard support"
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modprobe usbcore
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modprobe ehci-hcd
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modprobe xhci-hcd
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modprobe usbhid
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modprobe evdev
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# Unmount init filesystems
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umount /proc 2>/dev/null || true
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umount /sys 2>/dev/null || true
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echo "[+] debug hook: initdebug=true or /init-debug"
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if grep -qw "initdebug=true" /proc/cmdline; then
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if [ -x /init-debug ]; then
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echo " initdebug=true: executing /init-debug ..."
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sh /init-debug
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else
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echo " initdebug=true: starting interactive shell (no /init-debug). Type 'exit' to continue."
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/bin/sh -l
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fi
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elif [ -x /init-debug ]; then
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echo " executing /init-debug ..."
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sh /init-debug
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fi
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echo "[+] switching root"
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mkdir /root/home
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echo " exec switch_root /mnt/root /sbin/zinit init"
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exec switch_root /mnt/root /sbin/zinit -d init
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##
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