Hello there, folks! Although I solved the problem and I installed it manually, I don’t know if I faced a bug that should be reported.
I downloaded the ISO today and wrote it into an USB using usbwriter. I booted it in my Lenovo Thinkpad T490, and it couldn’t mount /dev/disk/by-label/EOS_202502 to /run/archiso/bootmnt. Screen was similar to this picture:
I just ran mkdir -p for the bootmnt and mounted sda1 into the bootmnt, ran exit and it was done, it ran normally and now I’m writing from the liveusb. But, just in case!
That’s the exact tool you used to create install media?
In almost all cases this happens on booting the ISO, it is about corrupted files on the USB.
Be it caused by using a tool that modifies the hybrid ISO structure or not fully synced ISO file (in case of ventoy per example).
if you checked ISO shasum it should be good to go, not tested usbwriter lately i could check back.
But i am sure ISO is working in general, the error you got is as i said in most cases resolved by rewriting the image correctly or exchange usb stick and in case using another usb port.