Hello!
I've faced a problem booting windows 10 ISO. After selecting appropriate menu entry i see black screen with underscore and after couple of seconds it gets me back to previous menu.
As far as I can see, last entries on logs are "no mapping". It tries couple of times and exit.
bonus question: is there a built-in option in ventoy for logging rather than editing boot entries manually?
Any help would be much appreciated.

Hi! 
I have a suggestion: in general, ventoy folder on first partition is mostly for a theme customizations and usually not used daily. How about making it hidden out-of a box? Those who need customizations may read manual and find that folder and those sho don't need it, ...well they dont need it anyways.

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For those who wish to hide it without damaging its functionality (at first i thought renaming it to .ventoy - that will not work)

Linux users
cd /your_flash_root_folder (e.g. /media/admin/ventoy)
echo ventoy > ./.hidden

Windows users
Just mark ventoy (and .hidden file if you did previous step) folder hidden in its properties. 
That's it. That will prevent ventoy folder to be accidently tampered while using flash drive

On an Intel NUC, I can use Ventoy in BIOS mode to boot the Arch Linux installation ISO.

If, on the same Intel NUC, I use Ventoy and EFI mode, the boot will fail.

The failure messages is:

Waiting 30 seconds for device /dev/disk/by-label/ARCH_202010 ...
ERROR: '/dev/disk/by-label/ARCH_202010' device did not show up after 30 seconds.

I then get an emergency shell, and I can see the following devices in /dev/disk/by-label:  Recovery and VTOYEFI

Recovery is probably Windows 10 on another disk.

If, instead, I boot via BIOS, the following disks exist in /dev/disk/by-label:
ARCH_202010, Recovery, and VTOYEFI.  ARCH_202010 is a symlink to /dev/dm-0.

Attached are screenshots of (1) the EFI error message, and (2) ls -l /dev/disk/by-label after a successful BIOS boot.

Attached Files

Thumbnail(s)
       

The Linux version BUG is reported here: https://forums.ventoy.net/showthread.php?tid=744

Further, the Ventoy product does NOT maintain "options" parity across; as, there is no "config" file saved from one release on its disk (sda2) for the next upgrade to use.

FYI!

Here is a screen shot of my ventoy directory on a usb memory stick:
   
And here is a screen shot of the ventoy.json file:
   
All of the .dat files were generated by CreatePersistentImg.sh and then copied to the ventoy directory and the names change as you see them. When booting from the usb memory stick, all of the ventoy menus look and function as they should. The Kbuntu iso starts and runs as expected and configuration changes are stored and remembered at the next startup, as expected.
The Ubuntu iso will not start up using the persistence file. It will start and run without persistence. All of the others start up and run with their persistence files, but no configuration changes are remembered on the next boot.
What am I doing wrong?

Is there a setting so that the sufixe (extension) of the ISO or WIM name does not appear in the menu list?
Thank you

Greetings!  GRUB newbie here.  I've been using VENTOY successfully on lots of machines, mostly Legacy-MBR types.  I just tried to use it on an HP 8510p Core2Duo (Legacy-MBR) and GRUB flashes an error (too fast to see) and winds up at the GRUB prompt.

I used the "ls (hd0,1)" and "ls (hd0,2)" GRUB commands to give a quick look at the partitions on the VENTOY build (which is a 1tB USB HDD).  Partition 1 looks normal seeing an exFAT FileSystem with the proper label and size.  Partition 2 says "No known FileSystem detected" with the proper 32mB size.  All my partition tools say that the 32mB partition is of the FAT16 type.

Any idea what might be happening here...???  Thanks in advance for any offered help.

Hi @all.

There are scant reports of anyone updating -- specifically from v1.0.21 to v1.0.22 -- with Ventoy installed to computer internal HDD/SSD.

I just tried to upgrade my setup (see https://forums.ventoy.net/showthread.php...46#pid1746 and https://forums.ventoy.net/showthread.php...88#pid1488) by booting a Linux Mint 20 livecd ISO image and issuing the following command in a terminal:

Hello everyone,
i tried today to install Windows 7 in several ways into a VHD and start it with Ventoy.
I always tried to boot in BIOS mode, but no matter how I created the VHD I got a Bluescreen 07b at boot time.
I also tried to patch the registry to AHCI, but without success.
Did Windows 7 already run one of you ???
I would like to have it on the Ventoy Stick, then I don't need a local installation anymore. :-)

i have many files in USB. 
there are Some PE files in /PE
and iso files in /Source
and etc.. 1st folders, sub folders, sub sub folders...  many..in usb.

So, take many times to scan and display files, folders in root without below option.

{ "VTOY_DEFAULT_SEARCH_ROOT": "/PE" }

But, with option "VTOY_DEFAULT_SEARCH_ROOT", just display files in /PE. no shows files wim or iso in root. To solve this problem, I Have to collect ISO, WIM in One Folders.

so I sugesstion, 
Without "VTOY_DEFAULT_SEARCH_ROOT", Do not scan All folder and files USB. Just scan root folder and 1st folders.