SpinRite 6.1 won't run on Sharp PC-4641 laptop

  • SpinRite v6.1 Release #3
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    The 3rd release of SpinRite v6.1 is published and may be obtained by all SpinRite v6.0 owners at the SpinRite v6.1 Pre-Release page. (SpinRite will shortly be officially updated to v6.1 so this page will be renamed.) The primary new feature, and the reason for this release, was the discovery of memory problems in some systems that were affecting SpinRite's operation. So SpinRite now incorporates a built-in test of the system's memory. For the full story, please see this page in the "Pre-Release Announcements & Feedback" forum.
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  • BootAble – FreeDOS boot testing freeware

    To obtain direct, low-level access to a system's mass storage drives, SpinRite runs under a GRC-customized version of FreeDOS which has been modified to add compatibility with all file systems. In order to run SpinRite it must first be possible to boot FreeDOS.

    GRC's “BootAble” freeware allows anyone to easily create BIOS-bootable media in order to workout and confirm the details of getting a machine to boot FreeDOS through a BIOS. Once the means of doing that has been determined, the media created by SpinRite can be booted and run in the same way.

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mnc1959

New member
Nov 10, 2023
1
0
Perfect! Thanks for the closure on this one @krquinby !! That's a useful lesson for the future. If someone reports trouble, the first thing we'll have them do is boot with media created by SpinRite's own v6.1 media creator. (And it's important news that the existing SpinRite 6.0 boot prep might be incompatible in some instances. So thanks!)
Hi Steve,

I just purchased an old Sharp PC-4641 laptop. It has a 720K floppy drive and a 40M hard drive. I thought i would run Spinrite 6.1 over the drive. I don't seem to be able to create 720k bootable media from within Spinrite 6.1 R5. I can create a DOS 5.0, 720k bootable diskette on the machine, can I copy the Spinrite executable across, or how do I create a bootable 720K bootable Spinrite 6.x diskette?

The other issue I keep getting is

the message:

Ilegal V40 Opcode Trapped!! and then the laptop (luggable) locks up.

I would really love to run Spinrite over the the hard drive in this old machine, but having no luck.

I have tried Spinrite 3, 5, 6 and 6.1 so far :-(

BTW Love your work and Security Now.

Cheers, Martin...
 
Hey Martin:

The illegal opcode message strongly suggests that the processor in your laptop is older than the minimal processor target for SpinRite. As SpinRite has moved forward through time I've been nudging its use of more recent instructions forward. This is not generally any problem since I'm still remaining way back. (No one — not one — of the 800 pre-release testers has reported an invalid opcode problem.)

Given the age of that machine, and the small size of its drive, I would try SpinRite 3 or 5, either of which ought to be fine with it. And if you really did want to run SpinRite 6.1 over that 40MB drive, removing it from the laptop and connecting it to a more recent PC would allow that to happen! (y)