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Linux altar53.supremepanel53.com 4.18.0-553.8.1.lve.el8.x86_64 #1 SMP Thu Jul 4 16:24:39 UTC 2024 x86_64
/ usr/ lib/ dracut/ modules.d/ 99squash/ |
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#!/bin/sh
PATH=/bin:/sbin
[ -e /proc/self/mounts ] \
|| (mkdir -p /proc && mount -t proc -o nosuid,noexec,nodev proc /proc)
grep -q '^sysfs /sys sysfs' /proc/self/mounts \
|| (mkdir -p /sys && mount -t sysfs -o nosuid,noexec,nodev sysfs /sys)
grep -q '^devtmpfs /dev devtmpfs' /proc/self/mounts \
|| (mkdir -p /dev && mount -t devtmpfs -o mode=755,noexec,nosuid,strictatime devtmpfs /dev)
grep -q '^tmpfs /run tmpfs' /proc/self/mounts \
|| (mkdir -p /run && mount -t tmpfs -o mode=755,noexec,nosuid,strictatime tmpfs /run)
# Load required modules
modprobe loop
modprobe squashfs
modprobe overlay
# Mount the squash image
mount -t ramfs ramfs /squash
mkdir -p /squash/root /squash/overlay/upper /squash/overlay/work
mount -t squashfs -o ro,loop /squash-root.img /squash/root
# Setup new root overlay
mkdir /newroot
mount -t overlay overlay -o lowerdir=/squash/root,upperdir=/squash/overlay/upper,workdir=/squash/overlay/work/ /newroot/
# Move all mount points to new root to prepare chroot
mount --move /squash /newroot/squash
# Jump to new root and clean setup files
SYSTEMD_IN_INITRD=lenient exec switch_root /newroot /init