[Oberon] Project Oberon 2013 RISC.img

[Chris Burrows]

Tomas, 

I recommend that you check that your backup is OK by copying it to a new SD Card and make sure that you can access the updated files when you run it on your Project Oberon system.

When using dd on Windows, for faster copying I use bs=1M. To make sure I have included the whole Project Oberon filesystem I use count=320. 320MB is the maximum size you would need (256MB unused + 64MB Project Oberon).

Note also that the images conveniently zip up to only about 700KB because of all that unused area.

Regards,
Chris 

> -----Original Message-----
> From: thomas.kral at email.cz [mailto:thomas.kral at email.cz]
> Sent: Saturday, 9 April 2016 4:57 PM
> To: chris at cfbsoftware.com; ETH Oberon and related systems
> Subject: Re: [Oberon] Project Oberon 2013 RISC.img
> 
> Hi,
> 
> Thank you, I have now saved my work on uSD, backing up only 262568
> blocks, that is the image size.
> 
> $ dd if=/dev/sdc of=RISC1.img bs=1024 count=262568 $ ls -s *img
> 
> 262568 RISC1.img     262568 RISC.img
> 
> Many thanks
> Tomas
> 
> 
> ---------- Puvodn  zpr va ----------
> Od: Chris Burrows
> Komu: 'ETH Oberon and related systems'
> Datum: 9. 4. 2016 1:20:45
> Predmet: Re: [Oberon] Project Oberon 2013 RISC.img
> 
> > -----Original Message-----
> > From: Oberon [mailto:oberon-bounces at lists.inf.ethz.ch] On Behalf Of
> > thomas.kral at email.cz
> > Sent: Saturday, 9 April 2016 6:56 AM
> > To: ETH Oberon and related systems
> > Subject: [Oberon] Project Oberon 2013 RISC.img
> > >
> > Now I wish to make backup my uSD card and produce RISC.img.
> >
> > How can I do it with dd command, as the image size much smaller
> than
> > 2G uSD capacity?
> >
> 
> See the message with the subject 'RISC.img format' posted by Paul
> Reed on
> this mailing list on Feb 13 2016 for details of the RISC.img SD-Card
> image
> and some example dd commands:
> 
> http://lists.inf.ethz.ch/pipermail/oberon/2016/008881.html
> 
> Regards,
> Chris Burrows
> 
> CFB Software
> http://www.astrobe.com/RISC5
>