RISCix/RISCOS partitions on R260

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2 total messages Started by AnonyMoss Thu, 27 Aug 1992 13:09

#198

Author: AnonyMoss
Date: Thu, 27 Aug 1992 13:09

20 lines
1267 bytes

Hello all.

We have here an R260, with 120MB SCSI drive, sectioned so that about
7.5MB is available to RISC-OS, the rest to RISC-iX. 

Is it possible to claw back some of the space (around 15MB) allocated to
RISC-IX for RISC-OS to use, using the SCSIDM program, but without
trashing what is already on the disk? There is approximately 50MB of
free space within RISC-iX. I am hoping that it is possible to simply 
alter whatever maps and tables exist to achieve this.

Failing that, are there any alternatives, short of reformatting?

Any advice/info gratefully received.
Neil.
-- 
    o__    Bike it!!  : My opinions are : In every life we have some trouble 
   _.>/ _ You'll like :   my own, and   : When you worry, you make it double
  (_) \(_)   it!!     :    not LUT's    : Don't worry.. .. .. .. ..Be happy.
==N.D.Moss2@uk.ac.lut=============================Bobby McFerrin============

Re: RISCix/RISCOS partitions on R260

#201

Author: Brian Brunswick
Date: Fri, 28 Aug 1992 08:58

27 lines
1993 bytes

In article <1992Aug27.130934.29591@lut.ac.uk> N.D.Moss2@lut.ac.uk (AnonyMoss) writes:
>Hello all.
>Is it possible to claw back some of the space (around 15MB) allocated to
>RISC-IX for RISC-OS to use, using the SCSIDM program, but without
>trashing what is already on the disk? There is approximately 50MB of

Well this is partially what I produced my "partitions" thing to do.
You still have to trash the existing data if your riscix space is all
one partition, but what it lets you do is divide up the disc into
smaller bits, and you can then switch them between riscos and riscix.
Obtain from newcastle.  One thing to beware of when using the scsidm
partition command is that it writes the partition map after the end of
each partition - this is the cause of the 1 sector gap between them.
If you are trying to repartition a disc while preserving old ones,
this is dangerous. (as you will need to do to change the names for my
partitions thing(I never said it was elegant!))

One gain that you can make even without trashing your data is to use the
riscix swap partition as termporary scratch space for riscos. Of course,
it will need to be re"formatted" each time after running riscix, but this
can be automated and is still useful.

Of course, the alternative if you have two machines is just to use nfs onto
the riscix machine as a server - this gives you a sensable filing system as
well.

Brian.Brunswick@cl.cam.ac.uk  Disclaimer.  Short sig rules!

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