From 040696995706f6e395eaef93423ac89131fb0912 Mon Sep 17 00:00:00 2001
From: TolaMironcenko <mironcenkotola@gmail.com>
Date: Thu, 9 Jan 2025 11:54:56 +0700
Subject: [PATCH] updated mkinitramfs.sh and init.in

---
 src/init.in        |  41 ++++----
 src/mkinitramfs.sh | 235 +++------------------------------------------
 2 files changed, 35 insertions(+), 241 deletions(-)

diff --git a/src/init.in b/src/init.in
index 7674b4d..52a6ba8 100755
--- a/src/init.in
+++ b/src/init.in
@@ -96,10 +96,6 @@ do_try_resume()
 }
 
 mount_setup
-# mount -n -t devtmpfs devtmpfs /dev
-# mount -n -t proc     proc     /proc
-# mount -n -t sysfs    sysfs    /sys
-# mount -n -t tmpfs    tmpfs    /run
 
 read -r cmdline < /proc/cmdline
 
@@ -118,29 +114,30 @@ for param in $cmdline ; do
 done
 
 # udevd location depends on version
-if [ -x /sbin/udevd ]; then
-  UDEVD=/sbin/udevd
-elif [ -x /lib/udev/udevd ]; then
-  UDEVD=/lib/udev/udevd
-elif [ -x /lib/systemd/systemd-udevd ]; then
-  UDEVD=/lib/systemd/systemd-udevd
-else
-  echo "Cannot find udevd nor systemd-udevd"
-  problem
-fi
+# if [ -x /sbin/udevd ]; then
+#   UDEVD=/sbin/udevd
+# elif [ -x /lib/udev/udevd ]; then
+#   UDEVD=/lib/udev/udevd
+# elif [ -x /lib/systemd/systemd-udevd ]; then
+#   UDEVD=/lib/systemd/systemd-udevd
+# else
+#   echo "Cannot find udevd nor systemd-udevd"
+#   problem
+# fi
 
-${UDEVD} --daemon --resolve-names=never
-udevadm trigger
-udevadm settle
+# ${UDEVD} --daemon --resolve-names=never
+# udevadm trigger
+# udevadm settle
 
-if [ -f /etc/mdadm.conf ] ; then mdadm -As                       ; fi
-if [ -x /sbin/vgchange  ] ; then /sbin/vgchange -a y > /dev/null ; fi
-if [ -n "$rootdelay"    ] ; then sleep "$rootdelay"              ; fi
+# if [ -f /etc/mdadm.conf ] ; then mdadm -As                       ; fi
+# if [ -x /sbin/vgchange  ] ; then /sbin/vgchange -a y > /dev/null ; fi
+if [ -n "$rootdelay"    ]; then sleep "$rootdelay"; fi
 
 do_try_resume # This function will not return if resuming from disk
 do_mount_root
-
-killall -w ${UDEVD##*/}
+move_mount_setup
+# killall -w ${UDEVD##*/}
 
 exec switch_root $rootfspath "$init" "$@"
 
+problem
\ No newline at end of file
diff --git a/src/mkinitramfs.sh b/src/mkinitramfs.sh
index afd81b3..97f1010 100755
--- a/src/mkinitramfs.sh
+++ b/src/mkinitramfs.sh
@@ -1,226 +1,23 @@
 #!/bin/bash
 
 export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin
+initdir=./initramfs
 
-copy()
-{
-  local file
-
-  if [ "$2" = "lib" ]; then
-    file=$(PATH=/usr/lib type -p $1)
-  else
-    file=$(type -p $1)
-  fi
-
-  if [ -n "$file" ] ; then
-    cp $file $WDIR/usr/$2
-  else
-    echo "Missing required file: $1 for directory $2"
-    rm -rf $WDIR
-    exit 1
-  fi
+create_dirs() {
+  mkdir -pv $initdir/{bin,dev,mnt,proc,root,sys,run}
 }
 
-if [ -z $1 ] ; then
-  INITRAMFS_FILE=initrd.img-no-kmods
-else
-  KERNEL_VERSION=$1
-  INITRAMFS_FILE=initrd.img-$KERNEL_VERSION
-fi
+main() {
+  create_dirs
+  cp -v /usr/share/mkinitramfs/init.in $initdir/init
+  chmod 755 $initdir/init
+  cp -v /usr/share/mkinitramfs/busybox $initdir/bin/busybox
+  cd $initdir/bin
+  for i in $(cat /usr/share/mkinitramfs/busybox_list);do ln -sv busybox $i;done
+  cd ..
+  find . | cpio -H newc -o | gzip > ../initramfs.img
+  cd ..
+  rm -rv $initdir
+}
 
-if [ -n "$KERNEL_VERSION" ] && [ ! -d "/usr/lib/modules/$1" ] ; then
-  echo "No modules directory named $1"
-  exit 1
-fi
-
-printf "Creating $INITRAMFS_FILE... "
-
-binfiles="sh cat cp dd killall ls mkdir mknod mount "
-binfiles="$binfiles umount sed sleep ln rm uname"
-binfiles="$binfiles readlink basename"
-
-# Systemd installs udevadm in /bin. Other udev implementations have it in /sbin
-if [ -x /usr/bin/udevadm ] ; then binfiles="$binfiles udevadm"; fi
-
-sbinfiles="modprobe blkid switch_root"
-
-# Optional files and locations
-for f in mdadm mdmon udevd udevadm; do
-  if [ -x /usr/sbin/$f ] ; then sbinfiles="$sbinfiles $f"; fi
-done
-
-# Add lvm if present (cannot be done with the others because it
-# also needs dmsetup
-if [ -x /usr/sbin/lvm ] ; then sbinfiles="$sbinfiles lvm dmsetup"; fi
-
-unsorted=$(mktemp /tmp/unsorted.XXXXXXXXXX)
-
-DATADIR=/usr/share/mkinitramfs
-INITIN=init.in
-
-# Create a temporary working directory
-WDIR=$(mktemp -d /tmp/initrd-work.XXXXXXXXXX)
-
-# Create base directory structure
-mkdir -p $WDIR/{dev,run,sys,proc,usr/{bin,lib/{firmware,modules},sbin}}
-mkdir -p $WDIR/etc/{modprobe.d,udev/rules.d}
-touch $WDIR/etc/modprobe.d/modprobe.conf
-ln -s usr/bin  $WDIR/bin
-ln -s usr/lib  $WDIR/lib
-ln -s usr/sbin $WDIR/sbin
-ln -s lib      $WDIR/lib64
-
-# Create necessary device nodes
-mknod -m 640 $WDIR/dev/console c 5 1
-mknod -m 664 $WDIR/dev/null    c 1 3
-
-# Install the udev configuration files
-if [ -f /etc/udev/udev.conf ]; then
-  cp /etc/udev/udev.conf $WDIR/etc/udev/udev.conf
-fi
-
-for file in $(find /etc/udev/rules.d/ -type f) ; do
-  cp $file $WDIR/etc/udev/rules.d
-done
-
-# Install any firmware present
-cp -a /usr/lib/firmware $WDIR/usr/lib
-
-# Copy the RAID configuration file if present
-if [ -f /etc/mdadm.conf ] ; then
-  cp /etc/mdadm.conf $WDIR/etc
-fi
-
-# Install the init file
-install -m0755 $DATADIR/$INITIN $WDIR/init
-
-if [  -n "$KERNEL_VERSION" ] ; then
-  if [ -x /usr/bin/kmod ] ; then
-    binfiles="$binfiles kmod"
-  else
-    binfiles="$binfiles lsmod"
-    sbinfiles="$sbinfiles insmod"
-  fi
-fi
-
-# Install basic binaries
-for f in $binfiles ; do
-  ldd /usr/bin/$f | sed "s/\t//" | cut -d " " -f1 >> $unsorted
-  copy /usr/bin/$f bin
-done
-
-for f in $sbinfiles ; do
-  ldd /usr/sbin/$f | sed "s/\t//" | cut -d " " -f1 >> $unsorted
-  copy $f sbin
-done
-
-# Add udevd libraries if not in /usr/sbin
-if [ -x /usr/lib/udev/udevd ] ; then
-  ldd /usr/lib/udev/udevd | sed "s/\t//" | cut -d " " -f1 >> $unsorted
-elif [ -x /usr/lib/systemd/systemd-udevd ] ; then
-  ldd /usr/lib/systemd/systemd-udevd | sed "s/\t//" | cut -d " " -f1 >> $unsorted
-fi
-
-# Add module symlinks if appropriate
-if [ -n "$KERNEL_VERSION" ] && [ -x /usr/bin/kmod ] ; then
-  ln -s kmod $WDIR/usr/bin/lsmod
-  ln -s kmod $WDIR/usr/bin/insmod
-fi
-
-# Add lvm symlinks if appropriate
-# Also copy the lvm.conf file
-if  [ -x /usr/sbin/lvm ] ; then
-  ln -s lvm $WDIR/usr/sbin/lvchange
-  ln -s lvm $WDIR/usr/sbin/lvrename
-  ln -s lvm $WDIR/usr/sbin/lvextend
-  ln -s lvm $WDIR/usr/sbin/lvcreate
-  ln -s lvm $WDIR/usr/sbin/lvdisplay
-  ln -s lvm $WDIR/usr/sbin/lvscan
-
-  ln -s lvm $WDIR/usr/sbin/pvchange
-  ln -s lvm $WDIR/usr/sbin/pvck
-  ln -s lvm $WDIR/usr/sbin/pvcreate
-  ln -s lvm $WDIR/usr/sbin/pvdisplay
-  ln -s lvm $WDIR/usr/sbin/pvscan
-
-  ln -s lvm $WDIR/usr/sbin/vgchange
-  ln -s lvm $WDIR/usr/sbin/vgcreate
-  ln -s lvm $WDIR/usr/sbin/vgscan
-  ln -s lvm $WDIR/usr/sbin/vgrename
-  ln -s lvm $WDIR/usr/sbin/vgck
-  # Conf file(s)
-  cp -a /etc/lvm $WDIR/etc
-fi
-
-# Install libraries
-sort $unsorted | uniq | while read library ; do
-# linux-vdso and linux-gate are pseudo libraries and do not correspond to a file
-# libsystemd-shared is in /lib/systemd, so it is not found by copy, and
-# it is copied below anyway
-  if [[ "$library" == linux-vdso.so.1 ]] ||
-     [[ "$library" == linux-gate.so.1 ]] ||
-     [[ "$library" == libsystemd-shared* ]]; then
-    continue
-  fi
-
-  copy $library lib
-done
-
-if [ -d /usr/lib/udev ]; then
-  cp -a /usr/lib/udev $WDIR/usr/lib
-fi
-if [ -d /usr/lib/systemd ]; then
-  cp -a /usr/lib/systemd $WDIR/usr/lib
-fi
-if [ -d /usr/lib/elogind ]; then
-  cp -a /usr/lib/elogind $WDIR/usr/lib
-fi
-
-# Install the kernel modules if requested
-if [ -n "$KERNEL_VERSION" ]; then
-  find \
-     /usr/lib/modules/$KERNEL_VERSION/kernel/{crypto,fs,lib}                      \
-     /usr/lib/modules/$KERNEL_VERSION/kernel/drivers/{block,ata,nvme,md,firewire} \
-     /usr/lib/modules/$KERNEL_VERSION/kernel/drivers/{scsi,message,pcmcia,virtio} \
-     /usr/lib/modules/$KERNEL_VERSION/kernel/drivers/usb/{host,storage}           \
-     -type f 2> /dev/null | cpio --make-directories -p --quiet $WDIR
-
-  cp /usr/lib/modules/$KERNEL_VERSION/modules.{builtin,order} \
-            $WDIR/usr/lib/modules/$KERNEL_VERSION
-  if [ -f /usr/lib/modules/$KERNEL_VERSION/modules.builtin.modinfo ]; then
-    cp /usr/lib/modules/$KERNEL_VERSION/modules.builtin.modinfo \
-            $WDIR/usr/lib/modules/$KERNEL_VERSION
-  fi
-
-  depmod -b $WDIR $KERNEL_VERSION
-fi
-
-( cd $WDIR ; find . | cpio -o -H newc --quiet | gzip -9 ) > $INITRAMFS_FILE
-
-# Prepare early loading of microcode if available
-if ls /usr/lib/firmware/intel-ucode/* >/dev/null 2>&1 ||
-   ls /usr/lib/firmware/amd-ucode/*   >/dev/null 2>&1; then
-
-# first empty WDIR to reuse it
-  rm -r $WDIR/*
-
-  DSTDIR=$WDIR/kernel/x86/microcode
-  mkdir -p $DSTDIR
-
-  if [ -d /usr/lib/firmware/amd-ucode ]; then
-    cat /usr/lib/firmware/amd-ucode/microcode_amd*.bin > $DSTDIR/AuthenticAMD.bin
-  fi
-
-  if [ -d /usr/lib/firmware/intel-ucode ]; then
-    cat /usr/lib/firmware/intel-ucode/* > $DSTDIR/GenuineIntel.bin
-  fi
-
-  ( cd $WDIR; find . | cpio -o -H newc --quiet ) > microcode.img
-  cat microcode.img $INITRAMFS_FILE > tmpfile
-  mv tmpfile $INITRAMFS_FILE
-  rm microcode.img
-fi
-
-# Remove the temporary directories and files
-rm -rf $WDIR $unsorted
-printf "done.\n"
+main