How to erase persistant from usb multiboot with multisystem?

[pcfan5]

Hello, I have followed this tutorial viewtopic.php?f=42&t=229086 successfuly , however I would like to erase the "persistan" from one of the Iso's in order to make "persistan" to another (18.3) and to boot from this without trouble.
I got a USBlive flashdrive with 3 linux mint ISO's , two of them were marked as "persistant", but I cannot do the same with ISO for 18.3, if I do it doesn't boot.
Regards.

[Spearmint2]

You have 2 distros on a single flashdrive and want to add a third? What sort of persistence is used for each of the other distros? Is it persistent FILE, or persistent PARTITION?

[pbear]

pcfan5, I set up a persistent flash drive this evening per the Tutorial you linked. (I've seen the tutorial before, but hadn't tried it till now.) As far as I can tell, there is no good way to erase persistence from one ISO, nor to transfer it to a different one. Seems to me your best option would be to start over. Open Gparted and replace the partition table, which will reformat the drive. Install ISO and casper-rw partition as before.

Note that, although you can install more than one ISO, only one can have persistence by this method. If you would like multiple ISOs with persistence, use a separate flash drive for each. Or use MultiBootUSB. It will permit multiple persistent systems, but uses the casper-rw file method, which limits persistence per system to 4 GB. That's plenty for testing. And for a long term system, you should be using full install rather than persistence.

[pcfan5]

@pbear Thank you , I didn't know that! Thank you for the tips!!

@Spearmint 2 persistan partition.

I would like to explain that I have a long term instalation, but just in case my HDD gots broken , as it happened to a friend of mine, I would like to be prepared .
Thank you guys.