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computers / alt.sys.pdp10 / TOPS-10 SFD removal

TOPS-10 SFD removal

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Subject: TOPS-10 SFD removal
From: zzwergel@gmail.com (Zach Z)
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by: Zach Z - Fri, 1 Sep 2023 06:53 UTC

Hi, I've recently got interested in the TOPS-10 operating system. How do you remove an SFD? I already tried "DEL *.SFD", but I get:

..dir

FORT SFD 1 <177> 31-Aug-89 DSKB: [12,1]
BASIC SFD 1 <177> 31-Aug-89
Total of 2 blocks in 2 files on DSKB: [12,1]

..del *.sfd
Files deleted:

? FORT.SFD (2) protection failure

? BASIC.SFD (2) protection failure

The SFDs are empty and I even changed the protection but I STILL can't delete them.!

Re: TOPS-10 SFD removal

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copy mid

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Date: Thu, 31 Aug 2023 23:57:19 -0700 (PDT)
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Subject: Re: TOPS-10 SFD removal
From: zzwergel@gmail.com (Zach Z)
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by: Zach Z - Fri, 1 Sep 2023 06:57 UTC

On Friday, September 1, 2023 at 2:53:35 AM UTC-4, Zach Z wrote:
> Hi, I've recently got interested in the TOPS-10 operating system. How do you remove an SFD? I already tried "DEL *.SFD", but I get:
>
> .dir
>
>
> FORT SFD 1 <177> 31-Aug-89 DSKB: [12,1]
> BASIC SFD 1 <177> 31-Aug-89
> Total of 2 blocks in 2 files on DSKB: [12,1]
>
> .del *.sfd
> Files deleted:
>
> ? FORT.SFD (2) protection failure
>
> ? BASIC.SFD (2) protection failure
>
> .
>
> The SFDs are empty and I even changed the protection but I STILL can't delete them.!

Never mind
The protection codes are opposite for SFDs!

Subject	Author
TOPS-10 SFD removal	Zach Z
Re: TOPS-10 SFD removal	Zach Z