I have now run the installation again.
Once completely and also test only with the “b” variants, because the phone is in “b” mode.
The only thing that works is the /e/ recovery mode.
In recovery mode I get the following messages
E: Failed to bind mount /mnt/staging/emulated/media/0 to /storage/emulated: No such file or directory
E: recvmsg failed (No buffer space vailable)
E: Open failed: /metadata/ota: No such file or directory
E: Couldn´t mount Metadata
E: [libfs_mgr]Faile to find block devie for partition