sorry to post this on an old thread but im having a similar problem i burned a 15gb image to sd card then i put it into my other pc to boot from and it boots fine. i then insert my 1TB external hard drive
i go into options in batocera then scroll down to instal to new disk choose disk then chose version then click on go.
than i get an error saying check system logs
i have got network on this machine and ive also tried it on my main machine and still says the same error
i looked in the logs and it says theres not enough space to download 940mb to transfer it to external disk
how am i suppose to do this as no matter how big a sd card i use the image still takes up all the space on it and i get the same error not enough space how can i transfer the image to a different disk and then have nearly all the 1tb space ro put my roms