[DVE]

Thanks for the answer. I tried to change the CDROM ID to 4, but it did not help. I also have a SCSI(1) instead of SCSI(0) in the system, but I am not sure if it may cause a problem.

These are all the steps, I do:
1) I copied the disk "IRIX 6.5.22 Overlay 1" iso image using dd
2) I check the environment: hinv shows 2 scsi drives 1,1 (HDD) and 1,4 (CDROM)
3) I run the command: boot -f dksc(1,4,8)sashARCS - I can enter the sash shell
4) I run the command: boot -f dksc(1,4,7)stand/fx.ARCS --x, set the SCSI id to 1, disk id to 1, other parameters keep as defaults, enter 'exit'
5) I go to System install, press Install, files are copying 1-2 minutes, then the screen becomes black, it looks like reboot, but I see only black screen, nothing happened. If I press the 'reset' button, I get the message "Boot file not found on device scsi(1)disk(1)rdisk(0)partition(8)/sash".

Do I miss some steps? Maybe scsi(1) is not suitable for system boot? Or for Indigo 2 some command line parameters are maybe different?