Can't boot into Kali Linux Live. Conflict with existing Linux OS

hi there,


here is my hardware info

laptop: Lenovo T450 x64
hd0: windows7 (sda)
hd1(m.2 ssd): mint linux with ext4 file system (sdb)


I could boot into the grub menu, however,when I choose the boot item 'Live (amd64)' ,
the booting process was stopped due to some problem.

I got a message shown below:

Begin: Running /scripts/live-realpremount ... done.
Unknown file system type on /dev/loop0 (/live/medium/live/filesystem.squashfs)
modprobe: module ehci-orion not found in modules.dep

the boot process was stopped and then I got a console.
so I checked all the mount points to see what happend.
I found that
/dev/sdb on /live/medium

/dev/sdb should be my m.2 ssd, that's not correct.
it shouldn't be mount on /live/medium.
Instead, the filesystem.squashfs should. I guess.

so I removed the m.2 sdd and tried again.
It worked. I could boot into Kali Linux live usb.

Now I'd like to know how can I boot into Kali Linux Live without removing my m.2 ssd?


thanks.