1. delete ubuntu2110.dat
2. recopy persistence_ext4_1GB_casper-rw.dat to the USB as the new ubuntu2110.dat
3. Boot into Ventoy's main menu
4. Don't boot the ubuntu.iso, but press c to enter grub shell and checksum the dat file as in the attached photo
(The persistence_ext4_1GB_casper-rw.dat file MD5 is 6ced092c969eb7cfaf2f4808fdcf4dde)
2. recopy persistence_ext4_1GB_casper-rw.dat to the USB as the new ubuntu2110.dat
3. Boot into Ventoy's main menu
4. Don't boot the ubuntu.iso, but press c to enter grub shell and checksum the dat file as in the attached photo
(The persistence_ext4_1GB_casper-rw.dat file MD5 is 6ced092c969eb7cfaf2f4808fdcf4dde)