Hi johnklas & Bunsen,

thanks for info.

I did some further reading and as per your comments the Mac will not recognise all scsi drives ...

I have a bit a of chicken and egg problem...

I do not have an external disk enclosure and so to format the drive I need to disconnect the internal drive and connect new drive and then boot from floppy (using Network Access 7.5.3 disk).

I removed all the network stuff and put SCSI Probe on the floppy and it shows the ACARD SCSI device.

I initially tried to format with "ResEdited" standard Setup HD tool (change "00" to "FF") and had no luck.

I then tried to put the A/UX HD Setup version on the floppy, but it is too large (even when I removed everything), ditto Lido....

I will try to see if I can create a Mac OS 6 boot floppy and run tools from that.

Cheers.

(SE/30, Colour Classic (Mystic), Mac Pro, Mac mini(s) and MacBook Pro)