installing slackware to usb won't boot
 

I am using unetbootin to install several disros(arch,slackware,manjaro,mageia)

in all cases when I try to boot it only gives me one option(default)
. then it endlessly reset to 10 seconds. I have done this with other distros that worked. I am using a 125GB flash drive. I think it could be a problem with persistance. any help is appreciated

That is strange. From memory the slackware default delay is 2 minutes to select the distro/kernel to boot from.

Which of the four distros is the boot screen from?

You do know that there is a Slackware instalation forum as part of this site don't you?

I'm not sure I understand what you are trying to do based on the above comment. Are you trying to use unetbootin for a multiboot USB? That is not what it was designed for but it can be done, rather convoluted process as explained at the link below.

https://www.techrepublic.com/blog/di...sbs-with-ease/

One boot option for one OS, is that what you mean? That's the way it is designed, the second Linux installed to a USB overwrites the first unless you use a process similar to what is explained in the link above.

i've put Slackware install dvd iso onto https://ventoy.net/en/index.html and it booted up and started install; also you can drag and drop several linux distro and choose which to boot via splash . Most work, some even with persistence

boot screen is the same for all Manjaro, arch,magiea.Also I did not know about the slackare forum thaks