Hello,
see subject

Is there a way to make ventoy to use a default GNU GRUB theme? The dark theme with box that list my iso and stuff?

•     2021/04/27 -- Ventoy 1.0.42 released
  
  
  1.     Add * fuzzy matching for menu_alias/image_list/auto_install/persistence ... plugins. Notes
     
  2.     Add parent option in menu_class plugin. Notes
     
  3.     Add F4boot F5tool builtin class in menu_class plugin.
     
  4.     By default the submenu will use its parent's class in F4 boot and F5 tool menu.
     

• 2021/05/08 -- Ventoy v1.0.43 -- released
  
  
  1.     Change the UTF-16 languages.ini to UTF-8 languages.json
     
  2.     The update button is available even if data corrupted in VTOYEFI partition.
     
  3.     Set the default focus to No when you click Install button in Ventoy2Disk.exe.
     
  4.     Fix a BUG when booting Windows VHD(x) with the latest ventoy_vhdboot.img.
     
  5.     Support boot Windows VHD(x) files at local disk. Notes
     

• 2021/05/15 -- Ventoy v1.0.44 -- released
  
  
  1.     Add WIMBOOT Mode. Notes
     
  2.     Fix issue when install Fedora Server Edition
     
  3.     Add -o option in CreatePersistentImg.sh (#903)
     
  4.     Add parent/isopwd/wimpwd/imgpwd/efipwd/vhdpwd/vtoypwd options in password plugin. Notes
     
  5.     Fix a bug about unaligned read in UEFI mode.
     

• 2021/05/29 -- Ventoy v1.0.45 -- released
  
  
  1.     Add random theme select support. Notes
     
  2.     Add parent option in auto_install plugin. Notes
     
  3.     Add parent option in injection plugin. Notes
     
  4.     Add ExtendPersistentImg.sh for lossless expansion of persistent dat file. Notes
     
  5.     Print progress when use md5sum/sha1sum/sha256sum/sha512sum in grub shell.
     
  6.     Fix pack error in vDisk env (#912)
     
  7.     languages.ini update
     

• 2021/06/13 -- Ventoy v1.0.46 -- released
  

I have been trying to follow the setup detailed in https://www.ventoy.net/en/plugin_vtoyboot.html, but I always get stuck with the same errors.





I've been mostly trying this to setup 'linuxmint-20-mate-64bit.iso' and have tried booting the vdi.toy created with VirtualBox in Ventoy v1.0.41, v1.0.32, etc.

I have working VHDs with Windows in the same locations that boot alright before that -- i.e., when I get such errors, nothing boots anymore and I have to reboot.

What am I doing wrong?

• VoidLinux doesn't work
  

• Fedora (Rawhide) doesn't work
  

• Solus doesn't work
  

• Obarun (Arch_based_with_S6_init) doesn't work
  

Many thousands of people have no problem - so maybe you should check the checksum (CRC32\SHA1) of the ISO file that is on your USB drive? Otherwise, give exact details of which ISO you are using.