Can't install linux on a flash drive

[MiszS]

So i have a 128GB flash drive, i installed ventoy with GPT partition scheme on it, and i wanted to install inux mint on 48GB of space i left when installing it. So i did it using manual partitioning, selected my flash drive to install the bootloader, and after it's done installing (it took like 30 mins, instead of 5-10 normally), it shows that all the partitions are in the right place, but when i boot up the computer, the linux boot option is under the NVME drive, and i checked that it didn't get installed on the computer's ssd, because if i boot it up without the flash drive, it just shows grub, without the linux itself. Does anyone know what i did wrong, or how can i fix it? and the worst part is that it was on a school computer, now it boots up into grub instead of windows, so if someone doesn't know much about computers, they aren't going to be able to use it

[Kilrah]

You can't do that since Ventoy is the thing that this drive will boot from.

 

You can however use Ventoy to boot a disk image from the drive, or set up persistence for a given live OS.

 

But flash drives unless top end / SSD-based are unbearably slow for running an OS like you've noticed.

[thevictor390]

Future reference: maybe don't run OS installers on school computers.

 

All you have to do is skip Ventoy. Use Rufus or another tool to make a USB installer of Mint, then you can use the drive as a Live OS from the USB.

[MiszS]

1 minute ago, thevictor390 said:

Future reference: maybe don't run OS installers on school computers.

 

All you have to do is skip Ventoy. Use Rufus or another tool to make a USB installer of Mint, then you can use the drive as a Live OS from the USB.

i can alrealdy just boot into a live iso, i just want to have a portable OS with all my data and apps already there

[MiszS]

20 minutes ago, Kilrah said:

You can't do that since Ventoy is the thing that this drive will boot from.

 

You can however use Ventoy to boot a disk image from the drive, or set up persistence for a given live OS.

 

But flash drives unless top end / SSD-based are unbearably slow for running an OS like you've noticed.

oh, makes sense, but do you know why did it install bootloader or whatever its called on the computers ssd? i checked the install menu like 3 times to make sure the flash drive was selected, so it couldn't have been that. And the flash drive is perfectly fine for running linux, it was only this time that it took this long to install, its has read speed of around 150MB/s+, so speed rlly isn't an issue here, definitely enough to use vscode

[Kilrah]

Ubuntu and derivatives at least, maybe others have had a "bug" for... years now, if there is already an EFI partition on a drive in the PC it'll blatantly ignore whatever you select and install its loader there regardless. Gotta physically disconnect any drives other than the one you want to install to to avoid that.

[jsnotlout1]

8 hours ago, MiszS said:

So i have a 128GB flash drive, i installed ventoy with GPT partition scheme on it, and i wanted to install inux mint on 48GB of space i left when installing it. So i did it using manual partitioning, selected my flash drive to install the bootloader, and after it's done installing (it took like 30 mins, instead of 5-10 normally), it shows that all the partitions are in the right place, but when i boot up the computer, the linux boot option is under the NVME drive, and i checked that it didn't get installed on the computer's ssd, because if i boot it up without the flash drive, it just shows grub, without the linux itself. Does anyone know what i did wrong, or how can i fix it? and the worst part is that it was on a school computer, now it boots up into grub instead of windows, so if someone doesn't know much about computers, they aren't going to be able to use it

Can you get into the bios and check the bootloader order? Worth a shot. But Im not really sure whats going on here. You have to be careful with install media, Especially Linux