Cloud 1 - OMV Install Process Clarifiation

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I posted to Git Project, but just found this.. and so think this place is more appropriate to the issue / question.  

Cloud 1 - OMV Install Process Clarifiation · Issue #113 · gnubee-git/GnuBee_Docs (github.com)

I am not sure if there is a more formal forum to post questions. But following Newbie Deployment guide... I think I may have a step that I need clarification on or missed.
https://github.com/gnubee-git/GnuBee_Docs/wiki/%5BHowTo%5D-Debian-9-with-OpenMediaVault-4-%7C-First-working-step-by-step-tutorial-for-everyone.-Beginner-friendly

1. I have tty over serial from another device

2. I need debian / OMV to be installed on SD. I purchased 128GB SD and partitioned it (10Gb -boot ext4 8GB swap - 80GB data ext4)
   Device Boot Start End Sectors Size Id Type
   /dev/mmcblk0p1 2048 20973567 20971520 10G 83 Linux
   /dev/mmcblk0p2 20973568 37750783 16777216 8G 82 Linux swap / Solaris
   /dev/mmcblk0p3 37750784 244277247 206526464 98.5G 83 Linux

3. I used usb key and openwrt-ramips-mt7621-gb-pc1-squashfs-sysupgrade_2017-03-01.bin renamed to gnubee.bin on 2GB FAT drive and plugged in.. power on.. lights flashed... top light stoped flashing .. looked ok.

4. Per http://gnubee.org/install_omv.html which directs Debian prep to http://gnubee.org/install_debian.html ... so I guess next step is ...

###########
login as: root
ro...@192.168.10.1's password:

BusyBox v1.25.1 () built-in shell (ash)

____ _____ ____

_ _ _ | || || |
| (_) | _ _ ___ | | | | | || |
| | | ' \ '/ -)| |_ | | | || |__
|||.__/| ___||||||||___|

r62+3-0adcc23 Version: v1.4.1

root@libreCMC:~# wget --no-check-certificate https://raw.githubusercontent.com/g
nubee-git/GnuBee_Docs/master/GB-PCx/scripts/jessie_3.10.14/debian-jessie-install
--2021-12-07 15:37:37-- https://raw.githubusercontent.com/gnubee-git/GnuBee_Docs/master/GB-PCx/scripts/jessie_3.10.14/debian-jessie-install
Resolving raw.githubusercontent.com... 185.199.109.133, 185.199.108.133, 185.199.111.133, ...
Connecting to raw.githubusercontent.com|185.199.109.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2389 (2.3K) [text/plain]
Saving to: 'debian-jessie-install'

debian-jessie-insta 100%[===================>] 2.33K --.-KB/s in 0.01s

2021-12-07 15:37:38 (172 KB/s) - 'debian-jessie-install' saved [2389/2389]

root@libreCMC:~# sh debian-jessie-install
Detecting connected partitions, please wait a few moments.
/dev/mmcblk0p1: UUID="172be5e0-b6cc-40dc-87b8-a2d9ad73d826" TYPE="ext4"
/dev/mmcblk0p3: UUID="e2022bac-b289-4cec-8479-8398c47c8cd4" TYPE="ext4"
/dev/sda1: LABEL="OPENMEDIA" UUID="D017-529A" TYPE="vfat" PARTUUID="12e8402f-01"
Choose partition to install (will be formatted !!!): /dev/mmcblk0p1

/dev/mmcblk0p1: UUID="172be5e0-b6cc-40dc-87b8-a2d9ad73d826" TYPE="ext4"
Partition will be formatted, please type CONFIRM if you agree: CONFIRM
umount: /dev/mmcblk0p1: not mounted
Formatting /dev/mmcblk0p1, please wait...
mke2fs 1.43.3 (04-Sep-2016)
Creating filesystem with 2621440 4k blocks and 655360 inodes
Filesystem UUID: e098d7b4-8309-4ec5-aacf-477c115794f3
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632

Allocating group tables: done
Writing inode tables: 44/80

debian-jessie-install: line 83: debootstrap: not found
Error: Command debootstrap failed.
root@libreCMC:~#

Its almost like I am missing something here in steps.. All that script does is run "debootstrap" program to the mounted drive /tmp/newroot (which is correctly mounted first 10GB partition of sd card).

But there is no binary "debootstrap".