[SOLVED] persistence difficulty

[captain-sensible]

i have no problem with formating disk and have several iso's in a 14gig stick all but one booted.

on a new 4gig stick i am trying to get persistence with  linuxmint-19.3-xfce-64bit.iso which i note docs mention has been tested.

First my formated usb stick when mounted. it looks like  this:

ventoy
├── CreatePersistentImg.sh
├── ISO
│   └── linuxmint-19.3-xfce-64bit.iso
├── persistence.img
└── ventoy.json

in ventoy.json I have :

{
  
   "control": [
        { "VTOY_DEFAULT_MENU_MODE": "1" },
        { "VTOY_FILT_DOT_UNDERSCORE_FILE": "1" },
        { "VTOY_DEFAULT_SEARCH_ROOT": "/ISO/" }
    ]
     
    "persistence" : [
        {
            "image": "/ISO/linuxmint-19.3-xfce-64bit.iso",
            "backend": "persistence.img"
        }
    ],
   
 //there was a missing ", "    above but still not working
   
   
   
}



the first thing i note is that when CreatePersistentImg.sh is run i get a file  called  "persistence.img"
i did see in docs such as :

/persistence/ubuntu_20.04_1.img",",

would i be right that  persistence.img is renamed to "ubuntu_20.04_1.img"
and is at /ventoy/persistence/ubuntu_20.04_1.img and ventoy.json is edited accordingly ?

also when running CreatePersistentImg.sh i get an issue:


bash-5.0$ cd /run/media/andrew/ventoy/
bash-5.0$ ls --color
CreatePersistentImg.sh  ISO  ventoy.json
bash-5.0$ su
Password:
bash-5.0# chmod a+x CreatePersistentImg.sh
bash-5.0# ./CreatePersistentImg.sh
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 113.815 s, 9.4 MB/s
mke2fs 1.45.5 (07-Jan-2020)
/dev/loop0 contains `ISO-8859 text, with very long lines, with no line terminators' data
Proceed anyway? (y,N)

i just entered y
as i say i acn boot iso but there is no sign of choice of choice of selecting persisitence