[clug] Re: cfdisk

Rodney Peters rodneyp at pcug.org.au
Wed Jun 27 12:49:36 GMT 2007


The "subtle" way is called hacking.  Partitions on large disks are allocated 
in increments of about 7.8 MB.  So guess the size in MB then change units 
display to sectors.  If the number of sectors in the "new" partition does not 
match that of the lost partition then "delete" the "new" partition and try 
again with an amended number of MB.

cfdisk & parted may define "MB" differently.  Try to use what was originally 
used to partition the disk.


 On Wednesday 27 June 2007 22:00:31 linux-request at lists.samba.org wrote:
> Stephen,
> Thank you for your note.  The scanning procedure for a lost partition gives
> the results in sectors.  AFAICS, the cfdisk can display partition sizes in
> MBytes, sectors or cylinders. However, when a new partition is specified,
> its size can only be specified in MBytes.
> Perhaps there is some "subtle" way to change the units for partition
> specification, but I have not found it.
> Thanks again,
> Al.
> On Wednesday 27 June 2007 20:04, Stephen Rothwell wrote:
> > On Wed, 27 Jun 2007 19:18:13 +1000 Algis Kabaila <akabaila at pcug.org.au>
> wrote:
> > > I have "succeeded" in  causing serious software damage to my 250 GB
> > > drive and need to restore partitions, if possible. Unfortunately,
> > > cfdisk as well as parted require partition sizes in MBytes.  So the
> > > relation of the no of sectors and size in bytes is not just a sporting
> > > exercise.
> >
> > In cfdisk, you can change the units that things are specified in.
> --
> Algis Kabaila (Dr)
> http://akabaila.pcug.org.au/StructuralAnalysis/
>   End of encapsulated message

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