Installing an 30 GB SSD on to a RiscPC
Pages: 1 2
Rick Murray (539) 13806 posts |
You can write a header into server output to prevent archival. You can modify robots.txt to prevent the spider crawling the site. Our you can just request the site be forgotten. Our somebody else can if it’s a matter of copyright infringement. |
Steve Pampling (1551) 8155 posts |
That’s the sad bit |
Chris Hall (132) 3554 posts |
Or somebody else can if it’s a matter of copyright infringement A bit unlikely – if it was never spotted while it was active it seems odd that someone should get worried by it at this late stage!! Much more likely is something like what happened to the Virtual RiscPC pages – lots of useful data removed in what I assume was a bit of a sulk. |
Rick Murray (539) 13806 posts |
A certain somebody cleaned their existence so throughly that it’s almost as if they never existed. |
Steve Pampling (1551) 8155 posts |
While that’s probably a speculation rather than known fact it does fit with my thought line.1 1Each time I’ve got to the almost forgiven and largely forgotten stage another item comes up to cause me recall what type of behaviour triggered my previous (and previous and previous) feelings. |
Stephen Foord (3100) 5 posts |
I have my A7000+ open in front of me with working CF boot from APDL (6 June 2013 £24.90 inc adaptor) It is configured to two Harddrives, no CD, one floppy as what it happens to be left at after failed attempts at another configuration. I purchased a while back a new HAMA 8GB CF and a new 8GB non-branded CF off Amazon. I was not expecting compatibility probs. When it fails I then try booting with the unformatted disc. Boot gets to start-up choice menu where have to press key-X to desktop. I can then run HFORM and it does seem to see the unformatted CF as drive 4. |
Stephen Foord (3100) 5 posts |
errata: that should of course be 16383 (not 1683), 15636 (not 1536). |
Chris Evans (457) 1614 posts |
It probably won’t help but IDE drives (which CF cards really are) should never be hot swapped.
Using the cylinders, heads, sectors that HFORM suggests are best. n.b. Some drives will error on first HFORMing but not on a second attempt. From experience these drives will be very unreliable, reporting ‘disc not formatted’ on the next (or after a few) reboot and all subsequent access attempts. |
Rick Murray (539) 13806 posts |
As Chris says, IDE drives should never be hot-swapped. The hardware (and OS) has no mechanism for dealing with such a thing. If you were to perform any accesses to the device, it is entirely possible that it will be garbling data cached from the (CF) disc it thinks is there, with data from the (CF) disc that is actually there. Unless your IDE cable has a twist in it (rare these days), it should not matter whether your CD is in first or second place. What is important is whether it is Master, Slave, or Cable Select. Disc error 21 seems to be common when trying to get CF cards working. Error 8 means the drive isn’t ready, and 21 means the drive said it was busy when given a command – http://www.riscos.org/csafaq/part3.html#3_1 Compatibility problems are to be expected when trying to get modern devices to talk to ancient hardware. I understand that some of the later generation of PATA harddiscs expect to do UDMA transfers and just don’t work in PIO mode. This is unlikely to be noticed by the majority, but I expect the combi-chip Acorn used only does PIO mode. |
Steffen Huber (91) 1949 posts |
There were IDE cables with a twist? Never seen those – are you sure you are not confusing that with floppy cables? Or ST-506 (aka MFM/RLL)? |
Rick Murray (539) 13806 posts |
Nope. You’re right. It’s only whether or not pub 28 is grounded that determines which drive is which in cable select mode (so you might come across a ribbon cable with a notch cut out of one of the wires). I already knew about floppy twist, so I did some googling and I think I was mixing it up with ESDI, in which a cable twist can make two drives with the same ID behave as different drives (you can have drive #0 and drive #1 on the bus, but if they’re both set as drive #0 then it’s twisty time). The joys of being an old fart – you can remember using technology that most people haven’t heard of. ;-) |
Steve Pampling (1551) 8155 posts |
Or working in production test and working on equipment with ferrite core memory mats… |
Steve Pampling (1551) 8155 posts |
Which may have a bearing on the working (or not) of some CF cards where pin 28 not being grounded causes problems for the IDE interface in the Acorn era kit. Oh, and if I recall there was a set of info by David that appeared in (I think) RiscUser mag. Using Solid State drives |
Stephen Foord (3100) 5 posts |
I Have now tried to format the 8 GB HAMA and no-brand CF cards using HFORM on the A7000+ as described above. I used the settings HFORM offered for bootable long files including LFA 1024 bytes. I had also ordered a double CF reader master-slave visually similar version of the one APDL sold but it just green screens all the time so I cannot use it to backup CF card as my hope. |
Stewart Goldwater (1577) 79 posts |
if I recall there was a set of info by David that appeared in (I think) RiscUser mag. It’s in “RISC World,” here: |
John Williams (567) 768 posts |
Vinyl? Wax cylinders, 78s. I remember the 11 plus question “What is the next number in this sequence? 16 33 45 ?”. But then, I can remember Roy Rogers and Trigger on-stage at the Liverpool Empire. Why this is so, I have no idea! |
Steve Pampling (1551) 8155 posts |
That’s the one. |
Pages: 1 2