Search found 2605 matches

by BeebMaster
Mon Oct 15, 2018 9:14 pm
Forum: hardware
Topic: Raspberry Pi to 1MHz bus interface
Replies: 17
Views: 319

Re: Raspberry Pi to 1MHz bus interface

I'm sure a Raspberry Pi floppy disc is a possibility...
by BeebMaster
Mon Oct 15, 2018 8:07 pm
Forum: hardware
Topic: Raspberry Pi to 1MHz bus interface
Replies: 17
Views: 319

Re: Raspberry Pi to 1MHz bus interface

Beyond me I think, but hopefully somebody will! And as a vote of confidence in the ability of others, put me down for 4 of the interfaces please!
by BeebMaster
Mon Oct 15, 2018 8:04 pm
Forum: hardware
Topic: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)
Replies: 1096
Views: 98284

Re: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)

I've just got mine going for the first time today, it's a very amazing thing. There are lots of things I'd like to know which haven't been immediately obvious from this thread or the "Wiki", any thoughts on the following would be much appreciated! 1. I edited the config.txt file to comment out the k...
by BeebMaster
Mon Oct 15, 2018 7:04 pm
Forum: hardware
Topic: Raspberry Pi to 1MHz bus interface
Replies: 17
Views: 319

Re: Raspberry Pi to 1MHz bus interface

What does it do? I mean, will the Pi be used to emulate 1MHz bus devices like hard discs, Teletext adapter, Music 500 etc?
by BeebMaster
Sun Oct 14, 2018 12:07 pm
Forum: off-topic
Topic: Linux partition format
Replies: 18
Views: 335

Re: Linux partition format

On a related point - I need to free up a mini SD card for BeebSCSI. The only one I can spare has my unused Pi3 install on it. Can I just dd the card to make a complete image of it to restore later? Or do I need to explain the different partitions to it? To answer my own question, it appears to be "...
by BeebMaster
Sun Oct 14, 2018 11:53 am
Forum: off-topic
Topic: Linux partition format
Replies: 18
Views: 335

Re: Linux partition format

I installed iotop, it's very helpful. It was mainly tumbler, which doesn't seem to do anything useful, so I have uninstalled it. I did the same on a previous occasion a few years ago with no ill effects. I think when packages like that spend all their time smashing your hard drive, it's no wonder th...
by BeebMaster
Wed Oct 10, 2018 10:26 pm
Forum: off-topic
Topic: Linux partition format
Replies: 18
Views: 335

Re: Linux partition format

I've ordered a new internal drive now, and an external USB one to do the backup/transfer. Should be here in a few days. There's a lot of constant hard disc activity at the minute, but I don't know what's causing it. Usually it's either "tumbler" or "update-notifier", and killing either process stops...
by BeebMaster
Wed Oct 10, 2018 9:41 pm
Forum: software: other
Topic: ADFS Deleted File Recovery - Assistance Required
Replies: 22
Views: 333

Re: ADFS Deleted File Recovery - Assistance Required

On the Master Welcome disc, there is the Lostfiles utility which will recover all file fragments which exist on the disc but are no longer pointed to by directory entries. However it requires 2 scratch directories to already exist! So creating them will more than likely overwrite the deleted file. I...
by BeebMaster
Tue Oct 09, 2018 10:08 pm
Forum: hardware
Topic: SCSI / SCSI II adapaters?
Replies: 11
Views: 576

Re: SCSI / SCSI II adapaters?

Good work! Several utility ROMs have AFORM built in, like ADT, loading into SRAM might be an easier way to access the formatter. To try to answer the original question, I think there were probably 4 8-bit Acorn hard disc implementations: 1. Host adapter (ie. interface board between 1MHz bus and SASI...
by BeebMaster
Tue Oct 09, 2018 9:35 pm
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 83
Views: 1854

Re: BeebSCSI 7_7

I'm glad it wasn't just me having this problem!

I haven't got round to testing it in a BBC B yet, I couldn't fit it under Station 128 without everything carefully balanced on top wanting to do a runner, and I don't think it will fit anyway unless I get some other connector for the power.
by BeebMaster
Tue Oct 09, 2018 9:31 pm
Forum: off-topic
Topic: Linux partition format
Replies: 18
Views: 335

Re: Linux partition format

Oh yes, that memtest is in the grub menu I think. Found my VMs, the total size of that dir is 151GB but I only have 85GB spare on my backup drive. However with one VM which I never use, and one file already a zip of a drive file the total goes down to 72GB so I am copying that now. I think as long a...
by BeebMaster
Tue Oct 09, 2018 7:43 am
Forum: off-topic
Topic: Linux partition format
Replies: 18
Views: 335

Re: Linux partition format

1288 bad sectors now! I wish I could find out where they were, ie. in which partitions. I am short of external drive space for doing a backup just at the minute. I copied & compressed the NTFS bit, there were only 8GB of data there, but the computer won't let me copy it up to my NFS share, it has cr...
by BeebMaster
Mon Oct 08, 2018 7:05 pm
Forum: off-topic
Topic: Linux partition format
Replies: 18
Views: 335

Re: Linux partition format

Actually - thinking about it, I don't know where the VBox virtual drive files are stored, I don't have a backup of them, or anything on the NTFS partition. Better get onto that quick.
by BeebMaster
Mon Oct 08, 2018 7:04 pm
Forum: upcoming and recent events & exhibitions
Topic: Acorns in Aerospace / Monday 15th October 2018
Replies: 3
Views: 288

Re: Acorns in Aerospace / Monday 15th October 2018

This sounds really interesting! A few years ago I sold some BBC Micro spares to RAF Lossiemouth. When I asked them what they were doing with a Beeb, they said it was still in use as a backup to their more modern hardware! Unfortunately, I wouldn't be able to make it. Is it going to be recorded/trans...
by BeebMaster
Mon Oct 08, 2018 7:02 pm
Forum: off-topic
Topic: Linux partition format
Replies: 18
Views: 335

Re: Linux partition format

Thanks for the advice, it's the loss of a working computer set up the way I like it more than anything which will be missed if it crashes. I don't think I'd lose any data, it's all stored separately and accessed as an NFS share running on a Raspberry Pi 2. I have 3 backups of that, including one off...
by BeebMaster
Mon Oct 08, 2018 12:24 pm
Forum: off-topic
Topic: Linux partition format
Replies: 18
Views: 335

Linux partition format

There's a problem with the hard drive in my laptop, it seems to be dying on me. The disc utility tells me the disc is "OK" but has 1160 bad sectors. It was only 784 a couple of weeks back, but since then it has been a case of applications disappearing before my very eyes, followed by spurious errors...
by BeebMaster
Mon Oct 08, 2018 12:05 pm
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 83
Views: 1854

Re: BeebSCSI 7_7

Second board does the same, so it's either:

1. Both boards
2. The ribbon cable
3. The card
4. The power cable

Next I think I'd better plug it in straight underneath a BBC B to eliminate the cable being a problem.
by BeebMaster
Mon Oct 08, 2018 11:57 am
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 83
Views: 1854

Re: BeebSCSI 7_7

Yes, I'd read about the LED light change in the upgrade notes, that's how I knew the new firmware wasn't already installed. It might be a power thing, I am using the PSU aux output although the arrangement is shall we say a bit Heath Robinson - although the LED is on constantly, so it is working. I'...
by BeebMaster
Mon Oct 08, 2018 11:42 am
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 83
Views: 1854

Re: BeebSCSI 7_7

It's a new card, 32GB class 10 Kingston mini-SD. I didn't actually format it beforehand, I was recording the process for a future picture set, so I was expecting one of the steps to have been "need to format the card first". After doing a mode select manually I put the card in the PC expecting to fo...
by BeebMaster
Sun Oct 07, 2018 10:13 pm
Forum: hardware
Topic: New econet setup
Replies: 75
Views: 1472

Re: New econet setup

Yes - you should have StartFS amongst the files on the L3 download disc, which is in BASIC and can be edited to include inserting the date and time from the Master real time clock. Then you can build a !Boot file to CHAIN"STARTFS" and it all runs automatically.
by BeebMaster
Sun Oct 07, 2018 4:11 pm
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 83
Views: 1854

Re: BeebSCSI 7_7

It does seem to assume that the sectors-per-track is always 33, when creating the DAT file, whereas it might not always be depending on the interleave used in the formatter. I've found a curious problem whereby the access speed slows to a crawl the further away from sector zero. Unfortunately this m...
by BeebMaster
Sat Oct 06, 2018 10:01 pm
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 83
Views: 1854

Re: BeebSCSI 7_7

I thought I'd put this here, it seems to be the most recent BeebSCSI topic and I couldn't find a general discussion thread. Just tried my BeebSCSI mini for the first time today. It doesn't fit under a Master of course, so I had to use a 34-way extension cable. It's a bit unfortunate that the board g...
by BeebMaster
Mon Oct 01, 2018 6:40 pm
Forum: for sale / freebies
Topic: For Sale: Econet bits
Replies: 8
Views: 372

Re: For Sale: Econet bits

Did you see that CJE are doing their own Simon Clock...and for nearly as much as mine!!!

http://www.cjemicros.co.uk/micros/indiv ... =4D-ECOCLK

Best wishes,


Ian
by BeebMaster
Mon Oct 01, 2018 10:22 am
Forum: hardware
Topic: 2 (or more) ROMs in the same image
Replies: 9
Views: 333

Re: 2 (or more) ROMs in the same image

I found these:

http://mdfs.net/Info/Comp/BBC/SROMs/JoinROM.htm
http://mdfs.net/Software/BBC/Modules/ModuleInfo

Which is probably where I had read about it in the first place.
by BeebMaster
Mon Oct 01, 2018 7:16 am
Forum: hardware
Topic: 2 (or more) ROMs in the same image
Replies: 9
Views: 333

Re: 2 (or more) ROMs in the same image

I thought it was possible, but I hadn't considered needing to relocate the code for the higher ROM. So it's not possible to simply join to existing 8K ROM images together using this method, but would work where we have the source code. I was thinking it might be useful to make a combined Printer Ser...
by BeebMaster
Sun Sep 30, 2018 6:03 pm
Forum: hardware
Topic: 2 (or more) ROMs in the same image
Replies: 9
Views: 333

2 (or more) ROMs in the same image

Is it possible to put two or more ROMs in a 16K image, assuming they will fit, and have them both (or all) recognised by the Beeb? For example you might have 2 8K ROM images but only one spare socket or bank of sideways RAM so you would like to fit them in a single chip. I do have a recollection tha...
by BeebMaster
Sat Sep 29, 2018 6:21 pm
Forum: hardware
Topic: New econet setup
Replies: 75
Views: 1472

Re: New econet setup

MMC card and Econet are incompatible. Both try to use the same workspace. :? This may not apply in this particular case, as the Master is the file server and the BBC B is the user station, but I wonder if this might be solved in the case of a Master by using some of the configuration settings to re...
by BeebMaster
Sat Sep 29, 2018 5:57 pm
Forum: hardware
Topic: New econet setup
Replies: 75
Views: 1472

Re: New econet setup

Logcopy is I think the "official" Acorn utility for doing Net<>ADFS file transfers. Although JGH's Treecopy is probably a better bet for doing this sort of thing, it can copy recursively, skip files, resume from a previous break point by judicious use of Skipping and then "All", and supports just ab...
by BeebMaster
Sat Sep 29, 2018 5:53 pm
Forum: hardware
Topic: MDFS Key Losted
Replies: 17
Views: 606

Re: MDFS Key Losted

Mmm, well I tried that on my original MDFS back in 2003 and managed to break it all into pieces within about 7 seconds, so I won't be doing that again. Probably. Unless it really is that easy. Not that I'm in a hurry. Flat rods? We do have a couple of long-handled spoons here. And more pipe cleaners...
by BeebMaster
Sun Sep 23, 2018 2:25 pm
Forum: hardware
Topic: New econet setup
Replies: 75
Views: 1472

Re: New econet setup

If you copied all the files/directories in the ADFS part of my "L3FS2010" disc image to the CF drive you are using, then you could use Copyfiles or Treecopy in $.Utils to copy the contents of $.Utils, $.Library and $.Library1 to a DFS disc using the Master 128 (in several stages as there are more th...