forked from tfgrid/zosbuilder
119 lines
2.8 KiB
Bash
Executable File
119 lines
2.8 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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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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# 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 "[+] checking for debug files"
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if [ -e /init-debug ]; then
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echo " executing debug script..."
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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 init
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##
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