Ok I just installed System 6.0.8 on a SCSI drive and plugged the drive into my Plus and it wont boot. It will just flash the no disk ? and I have no clue what to do. Can someone help me? The drive is about 250 MB. It is an original Apple drive.
Thanks,
MacPlus99
@MacPlus99: Can you start up from a bootable floppy disk with the drive attached? If so, do you see a mounted disk icon of the 250 MB disk, once the Plus boots up on the floppy?
If you can't see any mounted disk icon of your 250 MB drive, then you will possibly have a SCSI termination issue to deal with. See this, this and this for starters.
If you can see its mounted icon, double-click to open it and see if the System folder is there. If it is then double-click the System folder to open it (blesses the system). Close it and restart the Plus.
Hopefully, it will be that easy solution.
How did you format this drive and install 6.0.8, btw?
Did you prepare the drive with HD SC Setup 2.0.3 and install a 6.0.8 system software "for every Mac" or for a Mac Plus? As far as I recall, you had to initialize the HDD after booting from System Startup disk and install a suitable sytem. If your HDD is invisible when booting from floppy its most likely a driver/interleave issue, if you terminated properly.
From Jagshouse:
"The buffer on many older HDs is rather small, and the SCSI on the Mac Plus is quite slow. When these two factors are combined, it causes the HD to effectively be "too fast" for the Plus. To get around this, HDs for use with the Mac Plus were often formatted with a 3:1 interleave, which slowed down the data flying at the Plus enough so the Plus could handle it. If your external HD is an older unit and has only been used with Macs newer than the Plus, it probably has a 2:1 or 1:1 interleave and is too fast for the Plus. To remedy this, back up the HD and reformat it on the Plus (or on another Mac, as long as you can specify the interleave ratio). This will make the drive slow enough for the Plus (and probably won't impact its performance on other Macs too negatively). Most newer hard disks have enough cache so as to make interleave ratios irrelevant."
Also; Be sure to start up your external drive before attempting to boot the Plus. See this Apple Support doc.
I just used Disk Setup in the Utilities folder. I set it up for a Mac Plus NOT every mac. I formatted it on a Performa 575. Oh and I always wait 30 Seconds for the hard drive to warm up.
Which "Disk Setup" of which "Utilities" folder?
Are you able to boot this Plus with drive attached from a floppy boot disk? If so; Can you see the mounted drive icon belonging to your external drive?
I cant boot the Plus with a floppy, thats why I'm using a SCSI drive. I am using disk setup in the 575 drive the 575 boots on. If you have a working boot floppy or know how to bless a floppy please tell me how.
And which OS is the 575 running?
"Blessing" any System to be bootable, involves double-clicking to open the System folder of the System you want to boot from, and closing it again (do this a couple of times to make sure) After blessing the system folder, the folder should display a folder icon with a Finder graphic on it. If it still looks like a generic blank folder, the "blessing" failed.
- However, AFAIK you would normally do this only on the particular Mac whose System you wanted to "Bless" and boot up to. Won't hurt to try tho'.
I read of your earlier attempts to create boot floppies. What media were you using to create these on in your 575, - 800K or 1.4MB floppy disks?
My 575 runs Mac OS 8.1
Can you run the HD SC Setup program that comes with the 6.0.8 boot disk on 8.1?
Try initialising your HDD with the old HD SC Setup.
If you have a Windows box with SCSI host adapter ready,
you could also prepare the drive with BasiliskII build 142.
Nevertheless, I would try to create a set of 800k floppies from the images at Apple´s site.
http://download.info.apple.com/Apple_Support_Area/Apple_Software_Updates...
If you dont have blank 800k´s you can cover the hole on a HD disk with a piece of Scotch tape.
(I know this is not recommended, but it works usually)
Initialise the taped floppies as Mac 800k and run DiskCopy4.2 for creating floppies from the images. If your Plus is not booting with those, there may be another non-disk related malfunktion.
