MERGING two Scripts to Unmount disks except booting disk

I'm not being funny, but having followed a number of your posts and threads on this issue, I have to say it does seem like you're not trying to solve a particular problem you're having, but rather exploiting the knowledge of this forum's users to develop and distribute an App to others that will do something which you don't have any understanding yourself of how to do.

I might be wrong, I probably am, and I hope I am, but in case I'm not let me point out this:

this is a forum for troubleshooting problems, answered by fellow amateur enthusiasts, and not a free 'develop my app for me' service.

Make your variable names unique in each code block and your script should run without any problems; or you could create a list of each device name and loop thru the list in one code block.

Hello

The AppleScript script below will unmount every device node which is mounted at mount point in /Volumes. Not sure whether it is safe with RAID.

do shell script "for dev in $(mount | perl -lne 'print $1 if m%(^/dev/[^[:space:]]+) on /Volumes/.*%o')
do
     diskutil unmount $dev >/dev/null 2>&1 &
done"

Regards,

H

#!/bin/sh
# uuid4fstab.sh  Generates UUID lines for /etc/fstab so only boot partition is mounted.
### === How to use ===
### Before running this shell script, mount all drives in os-x Disk Utility
###     uuid4ftab.sh | grep ^UUID > 4stab.txt
###     Then copy and paste contents of 4stab.txt to /etc/fstab  
### See http://www.macissues.com/2014/08/27/how-to-hide-a-hard-drive-partition-on-your-mac/
### for how to edit /etc/fstab with "sudo vifs" and/or  sudo nano -w /etc/fstab 
# Note similar goal as "two Scripts to Unmount disks except booting disk" at 
# https://discussions.apple.com/thread/5102909 which uses something like:
### for dev in $(mount | awk '/Volumes/{print $1}')
###    do
### diskutil unmount $dev >/dev/null 2>&1
### done
Above script would need to run every login. But the changes in fstab survive a reboot. 
# === If you have non-mountable partitions asking to be initialized ===
# For partitions tgat cannot be mounted in os-X (like ext4), then try this: 
# (1) change first line to:
# for i in /dev/disk*s*
# (2) edit 4stab.txt to remove the boot partition mounted at / (and any other cruft).
for i in `mount | awk '/Volumes/{print $1}' `
do
    /bin/echo -n $i
diskutil info $i | awk  -F\: '/Vol/'
# http://stackoverflow.com/questions/9985528/how-can-i-trim-white-space-from-a-variable-in-awk
UUID=`diskutil info $i  | awk  '/UUID/{gsub(/[ \t]+$/, "", $3); print $3 }' `
# get the filesystem type from output of "mount"
FSTYPE=`mount | grep $i | awk '{print substr ($4, 2, length($4) -2) }' `
echo FSTYPE="$FSTYPE"
# Output a line suitable for /etc/fstab staring with "UUID="
echo "UUID=$UUID none $FSTYPE ro,noauto 0 0 # $i "
done