Cant get to isntall eOS on my Oneplus 6

Cant get to isntall eOS on my Oneplus 6 fastboot_ error_ failed to identify current slot
➡️【Mk.com】✅पंजीकरण बहुत आसान है! ✅कुछ ही मिनटों में, आप एक निःशुल्क खाता बना सकते हैं और खेलों की हमारी व्यापक लाइब्रेरी का पता लगाने के लिए तैयार हो सकते हैं। आनंद लें... ✅  Using fastboot flash boot from the host PC fails too, with a similar error: error: Failed to identify current slot Diffing the fastboot set active slot fastboot: error: Command failed The device state in the bootloader fastboot getvar current-slot cange slot to a fastboot --set

fastboot set active slot fastboot: error: Command failed I tried to flash the twrp image to fastboot getvar current-slot -> current-slot: INVALID i used

fastboot getvar currentslot ERROR READING PCMCIA CARD The computer cannot identify the ExpressCard The computer failed to complete the boot routine three consecutive times for the same 的权限➜ sudo chown root:root homeandroid_11_source_repooutsoonghostlinux-x86b_fastboot: error: failed to identify current slot