Thanks ABC
Major head scratching going on ATM, Starting right off with the most basic setup.
I received the SSD on Friday and proceeded to get started with the setup/install.
I am stuck at the point now for about 4 hours of sorting out saving to the SSD!
First off I thought I better format the SSD to a favourable format - ext4 [done]
after about an hour and finally realising that there was pre-installed software on
the drive. I found this out on my home PC. I am finding I have to try figure out stuff
on my own, some of the different suggestions are not working.
sudo mkfs.ext4 /dev/sda1mke2fs 1.47.0 (5-Feb-2023)
/dev/sda1 contains a exfat file system labelled 'T7'
Proceed anyway? (y,N) y
Creating filesystem with 488378008 4k blocks and 122101760 inodes
Filesystem UUID: 8210498d-0a5f-4452-be11-5d93662f0826
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000, 214990848
Allocating group tables: done
Writing inode tables: done
Creating journal (262144 blocks): done
Writing superblocks and filesystem accounting information: done
Next up is automatically downloading files to the SSD - because I wont have enough
space on the internal HD for Fulcrum at least - this I havent been able to setup yet.
I'm taking a break from it for the moment.
I'm following the instructions from gemini >
https://www.google.com/search?q=automatically+save+downloads+to+external+ssd+in+debian+&client=firefox-b-e&sca_esv=8555f25f11312303&channel=entpr&ei=sa3GaOGVK_6ihbIP1pei6Ag&ved=0ahUKEwihsvO-mdiPAxV-UUEAHdaLCI0Q4dUDCBA&uact=5&oq=automatically+save+downloads+to+external+ssd+in+debian+&gs_lp=Egxnd3Mtd2l6LXNlcnAiN2F1dG9tYXRpY2FsbHkgc2F2ZSBkb3dubG9hZHMgdG8gZXh0ZXJuYWwgc3NkIGluIGRlYmlhbiAyBRAhGKABMgUQIRigATIFECEYoAEyBRAhGKABMgUQIRigAUiYHVCpBljeEXABeAGQAQCYAa4BoAHNCqoBBDAuMTC4AQPIAQD4AQGYAgigAvYIwgIKEAAYsAMY1gQYR8ICBBAhGAqYAwCIBgGQBgiSBwMxLjegB5QksgcDMC43uAecCMIHBzMtNy4wLjHIB4cB&sclient=gws-wiz-serp@penguin:~$ sudo fdisk -l
Disk /dev/sda: 1.82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: PSSD T7
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x6d2d1fc5
Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 3907026112 3907024065 1.8T 7 HPFS/NTFS/exFAT
@penguin:~$ sudo mkdir /mnt/dev/sdal
mkdir: cannot create directory ‘/mnt/dev/sdal’: No such file or directory
@penguin:~$ sudo mkdir /mnt//dev/sdal
mkdir: cannot create directory ‘/mnt//dev/sdal’: No such file or directory
@penguin:~$ sudo mkdir /mnt/dev/sda1
mkdir: cannot create directory ‘/mnt/dev/sda1’: No such file or directory
everything it obviously a massive learning curve and frustrating at the same
time, I have to research everything, even how to paste copied text in Debian!!
~~~~~EDIT~~~~~~
A few hours later . . .
I have managed to locate the UUID for the partition and follow the steps in the
Gemini guide, create a mount point for the SSD.
I am not confident that I have done any of it correctly.
After setting the download location in firefox to the new mound point for the SSD
I cannot download Bitcoin Core.
I also tried creating a folder in the SSD and the message I get is:

@penguin:~$ sudo chown -R zzzzzzz /path/to/ext_ssd
chown: cannot access '/path/to/ext_ssd': No such file or directory
@penguin:~$ cat /etc/fstab
# UNCONFIGURED FSTAB FOR BASE SYSTEM
UUID=<8210498d-0a5f-4452-be11-5d93662f0826> /mnt/ext_ssd <ext4> defaults,nofail 0 2
So more questions to be asked . . .