Multi-booting

Sure, no problem. Good luck and enjoy your fishing..

 

Just testing Ventoy for the 1st time. Can't say much about it. Never used yumi or Universal USB installer.

I would assume you would mainly hide a partition to keep it from being accessed by other systems that might be present on you PC

 

Adric, I created a Ventoy UFD and copied bibm.iso to the first partition.

I used a MBR system and Ventoy didn't boot. I deleted the EFI folder in the second partition (to prevent UEFI booting) and now Ventoy boots and shows bibm.iso in the menu. I chose Normal Mode and BIBM booted but it was BIBM installed on the HD and not from the ISO.

BIBM on the HD was uninstalled. Ventoy now doesn't boot and I just see a loading error.

BIBM was reinstalled. Then the BIBM partition was deleted. Ventoy booted to a menu and bibm.iso was selected.
Selecting Normal Mode gave a EMBR error
Selecting grub2 just goes back to the menu
Selecting memdisk mode shows the BIBM setup window. Click Cancel and you are in BIBM Maintenance mode. Success.

I don't use Ventoy or other multi-boot UFDs. I have plenty of blank UFDs. Much easier for me.

 

How did you access the efi system partition to delete the folder you mentioned? DiskManagement won't let me assign a drive letter for it.

Edit: Managed to access the partition using mountvol to get GUID of EFI partition and then used start on that listed entry to launch explorer and deleted the ventoy folder, but the flash still won't boot and says no OS found

 

My MBR computer automatically assigned a drive letter to that partition. I can't assign a drive letter in my UEFI computer.

If you boot into BIBM or BIU you can mount that partition with TeraByte Explorer and delete the EFI folder.

 

I assume you tried "memdisk mode". I've no idea why it works or doesn't work. Maybe different BIOS.

 

I deleted the wrong folder.

On your uefi computer did you try the mountvol and start trick? Look for entry with no mount point

Code:

   \\?\Volume{153483bc-0000-0000-0000-f03c00000000}\
       *** NO MOUNT POINTS ***


c:\>start \\?\Volume{153483bc-0000-0000-0000-f03c00000000}\

 

No.

 

I just tried mountvol in my UEFI computer. I see three *** NO MOUNT POINTS ***
Maybe my hidden partitions are included.

 

Start will launch explorer so trial and error should find the right one. Anyway, which partition did you boot from in the BIBM menu?

I only see partition 1 which doesn't boot.

 

I was using my installed BIBM in the MBR computer. Partition Work showed 5 drives. Three were my internal drives. One was the UFD and one was a 1.57 TiB drive. The latter doesn't exist in my computer and doesn't appear unless the Ventoy UFD is plugged in. The UFD is 4 GB.

I select the UFD drive...
Ventoy partition is 3786 MiB ExFAT
VTOYEFI partition is 32 MiB EFI System. This is the partition that used to contain the EFI folder.

You can't boot partitions on a UFD from BIBM.

 

When I check the 1.57 TiB partition it shows 1646687 MiB of Free Space.

 

Yes, I meant part1 was the only entry that shows in BIBM and it won't boot. I used Ventoy2Disk.exe to create the UFD. My computer has CSM support to allow legacy only so it should work the same as it does on your MBR system. For me, booting Ventoy only works with the BIOS boot Menu via F12.

 

So your UFD only contains one partition?

It's the same here.

 

No, my UFD is as shown in the DiskManagement image I posted above.
Does your uefi system have a BIOS that supports legacy and are you using BIBM there?

 

My UEFI system has CSM disabled. I use BIU in that computer. BootIt UEFI.

 

Are we expecting different outcomes from Ventoy? All I expect is for BIBM to boot from the F12 menu.

 

@Brian K
Hi
1) if i want to restore (with image for windows or linux ) an w7 or w10 image (both mbr )to a disk with w11 (mbr) , have I to resize Win11 (MBR1) partition and after how could I restore the w10 or 7 image?

2)and if I want to the same thing , i mean restore an mbr w11 image image to a disk with w10 or w7 (both mbr) what partition should resize and how could I restore it ?

in short to let me live together and use windows boot loader
thanks

 

Not sure what you mean. I only want to be able to boot Ventoy UFD from the installed BIBM Direct boot menu. on my HD. Then from From there, whatever ISOs that are listed.. My test Ventoy UFD is empty right now. just trying to get it to boot from the Direct Boot Menu and not have to remember to interrupt the BIOS with F12

Btw, how do you manually add boot items to the direct boot menu?[7s]

 

I finally managed to boot Ventoy UFD from BIBM by capturing the Ventoy MBR and creating a boot entry for it in the normal boot menu. The direct boot menu doesn't offer that option and Ventoy won't boot from there.

 

Adric, very clever. Can you post a photo of the BIBM Boot Item that boots Ventoy?

I played with BootIt UEFI yesterday and I created a Boot Item for Ventoy. But this was in a UEFI system.

 

mantra, I know how to do this if BootIt is installed but not with the Microsoft Boot menu. Someone else could offer advice.

 

Adric, this is from a UEFI system.

Ventoy boots from BIU Direct Boot menu...



Ventoy also boots from the Normal Boot menu...

 

After a few attempts

 

Excellent.

In your script line
copy sectors 2 0 1
What is the symbol preceding
ventoy.mbr