Re: TU-58 support under Unix

2019-02-03 Thread Jerry Weiss via cctalk
My speculation would be that TU58 did not add anything of value or convenience to these systems. I used Ultrix-11, V7M, Venix in this era.  My recollection is that in most cases to build these systems and patch them, you needed regular access  to 800/1600 BPI tape. Given this relatively standa

Re: TU-58 support under Unix

2019-02-03 Thread Bill Gunshannon via cctalk
On 2/3/19 5:13 PM, GREEN wrote: > I built support under V6 all in user space. That would be in the early 1980s > and I don’t recall it being very difficult. I suspect others did that as > well. Have you tried looking in the USENIX tapes? > I will probably look at writing a driver once I have so

Re: TU-58 support under Unix

2019-02-03 Thread GREEN via cctalk
I built support under V6 all in user space. That would be in the early 1980s and I don’t recall it being very difficult. I suspect others did that as well. Have you tried looking in the USENIX tapes? Sent from my iPhone > On Feb 3, 2019, at 4:33 PM, Bill Gunshannon via cctalk > wrote: > >> O

Re: TU-58 support under Unix

2019-02-03 Thread Bill Gunshannon via cctalk
On 2/3/19 3:41 PM, Aaron Jackson wrote: > TU-58 support wouldn't need to be in the kernel, it could easily run in > user space. Perhaps someone had written an application in user-space to > dump TU-58 tapes. I was looking for a device driver and when I didn't find it I looked at SPD's and release

Re: TU-58 support under Unix

2019-02-03 Thread Aaron Jackson via cctalk
TU-58 support wouldn't need to be in the kernel, it could easily run in user space. Perhaps someone had written an application in user-space to dump TU-58 tapes. Aaron. Bill Gunshannon via cctalk writes: > Here's a question for someone who has been around long enough to > remember. > > Why did

Re: TU-58 support under Unix

2019-02-03 Thread Noel Chiappa via cctalk
> From: Bill Gunshannon > Why did none of the available PDP-11 Unixes support the TU-58? > I have looked at Ultrix-11, V7M and BSD 2.11 The 'TUHS' list might be more likely turn up the reasoning? Noel

TU-58 support under Unix

2019-02-03 Thread Bill Gunshannon via cctalk
Here's a question for someone who has been around long enough to remember. Why did none of the available PDP-11 Unixes support the TU-58? I have looked at Ultrix-11, V7M and BSD 2.11 (didn't try 2.9 but I suspect if it isn't in 2.11 it wasn't in 2.9) and none of them had support for the TU-58. S