commit 5192e2b062f20d582918b5977b630f38514be48b
Author: root <root@testlime2.local>
Date:   Fri Oct 23 20:54:49 2020 +0000

    test v1 WIP

diff --git a/prepare_switch_root.sh b/prepare_switch_root.sh
new file mode 100755
index 0000000..4440097
--- /dev/null
+++ b/prepare_switch_root.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+mkdir /tmp/tmproot && mount none /tmp/tmproot -t tmpfs
+mkdir /tmp/tmproot/{proc,sys,usr,var,run,oldroot,root}
+cp -ax /{bin,etc,mnt,sbin,lib} /tmp/tmproot/
+cp -a /dev /tmp/tmproot/dev
+lsof -Fn / | grep ^n/ | cut -c2- | sort -u | grep /usr | rsync -v --files-from=- / /tmp/tmproot/
+NEEDED_BINARIES=(/usr/bin/wget /usr/bin/gzip /usr/bin/dd /usr/bin/mount /usr/bin/ls /usr/bin/cp /usr/bin/cat /usr/sbin/sshd /usr/bin/systemctl /lib/systemd/systemd)
+for binary_path in "${NEEDED_BINARIES[@]}"
+do
+  ldd $binary_path | grep -o '/lib[^ ]*' | sed 's/^/\/usr/' | xargs -n1 readlink -f  | rsync -v --files-from=- / /tmp/tmproot/
+  ldd $binary_path | grep -o '/lib[^ ]*' | sed 's/^/\/usr/' | rsync -lv --files-from=- / /tmp/tmproot/
+  rsync -v $binary_path /tmp/tmproot$binary_path
+done
+
+rsync -lv /sbin/init /tmp/tmproot/sbin/init