kernel panic after booting

[kignee1]

[Kernel panic - not syncing: VFX: Unable to mount root fs on unknown-block (0,0)]
using slim iso on usb drive, have no idea what went wrong and where exactly

[anunna]

Does this happen when you are booting your removable device or after you have installed your system? You need to give a lot more context. It sounds like you are getting this issue when booting the ISO.