fdisk

fdisk

[azie]

I'm using Dell Dimension PIV 2.0 with 40GB harddisk. When I try to use fdisk 
to repartition my harddisk, I got this error.

[begin]

# fdisk /dev/hda

Command (m for help): p

Disk /dev/hda: 255 heads, 63 sectors, 2491 cylinders
Units = cylinders of 16065 * 512 bytes


8 partitions:
#       start       end      size     fstype   [fsize bsize   cpg]
  a:        1         7*        6*    4.2BSD     1024  8192    16
  b:        7*       40*       32*      swap
  c:        1      2492*     2491*    unused        0     0
  e:       40*       42*        2*    4.2BSD     1024  8192    16
  f:       42*     2492*     2449*    4.2BSD     1024  8192    16

Command (m for help): n
Segmentation fault

#

[end]

any idea why this happens and how to partition it using fdisk?

-
To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.linux-learn.org/faqs

Re: fdisk

[Ray Olszewski]

A segfault occurs when a program attempts to access memory that the kernel 
has not allocated to it. In practice, a segfault error message usually 
means one of two things:

         1. A bug in the application being run. A common one is trying to 
read past the end of an array; C does not have a built-in check for this, 
and programmers too often forget to do range checking.

         2. A hardware problem, typically flaky RAM (which can trash an 
address pointer).

Without more information about your setup, I can't really tell you more 
about the error.

On the hardware side, how much RAM does the system have? Does the system 
segfault on other occasions?

On the software side, what Linux distribution and version? What version of 
fdisk (your -p printout is very different from mine, and I'm quite curious 
as to why it says it has 8 partitions but only lists 5)? Why is your Linux 
system using only BSD partitions ... or are they partitions from a prior OS 
that you are trying to replace? And where are you running fdisk from (the 
installer floppy or CD of your Linux distro, or what)?

Also, I may be reading it wrong (as I said, my fdisk has a different 
format), but it appears that even if fdisk were working, you couldn't add a 
new partition to that disk, since the 4 usable partitions (that is, 
excluding the extended partition shown in your list as C: and, presumably 
incorrectly, labeled "unused") already use all 2491 cylinders, leaving no 
space for new partitions. Assuming the BSD partitions are from a prior 
installation of an OS you are replacing, I'd suggest you first try deleting 
one or more of them to provide some room for Linux partitions.

At 11:36 AM 7/17/02 +0800, azie wrote:
>I'm using Dell Dimension PIV 2.0 with 40GB harddisk. When I try to use fdisk
>to repartition my harddisk, I got this error.
>
>[begin]
>
># fdisk /dev/hda
>
>Command (m for help): p
>
>Disk /dev/hda: 255 heads, 63 sectors, 2491 cylinders
>Units = cylinders of 16065 * 512 bytes
>
>
>8 partitions:
>#       start       end      size     fstype   [fsize bsize   cpg]
>   a:        1         7*        6*    4.2BSD     1024  8192    16
>   b:        7*       40*       32*      swap
>   c:        1      2492*     2491*    unused        0     0
>   e:       40*       42*        2*    4.2BSD     1024  8192    16
>   f:       42*     2492*     2449*    4.2BSD     1024  8192    16
>
>Command (m for help): n
>Segmentation fault
>
>#
>
>[end]
>
>any idea why this happens and how to partition it using fdisk?


--
-----------------------------------------------"Never tell me the 
odds!"--------------
Ray Olszewski					     -- Han Solo
Palo Alto, California, USA				ray@comarre.com
-------------------------------------------------------------------------------------------

-
To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.linux-learn.org/faqs

Re: fdisk

[Elias Athanasopoulos]

On Wed, Jul 17, 2002 at 11:36:14AM +0800, azie wrote:
> 8 partitions:
> #       start       end      size     fstype   [fsize bsize   cpg]
>   a:        1         7*        6*    4.2BSD     1024  8192    16
>   b:        7*       40*       32*      swap
>   c:        1      2492*     2491*    unused        0     0
>   e:       40*       42*        2*    4.2BSD     1024  8192    16
>   f:       42*     2492*     2449*    4.2BSD     1024  8192    16
> 
> Command (m for help): n
> Segmentation fault

If you had installed *BSD before in this disk, it is possible that fdisk
can understand slices and partitions and thus it segfaults.

It is an fdisk bug for sure. Whatever the case is with your disk, it must
not segfault.

Elias

-- 
http://gnewtellium.sourceforge.net			MP3 is not a crime.	
-
To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.linux-learn.org/faqs

Re: fdisk

[Bryan Whitehead]

Is libsafe being pre-loaded in /etc/ld.so.preload ?

I had problems with fsck, fdisk, and mkfs.ext2 when libsafe was being 
preloaded.

If the partition table is in some weird format, and you don't care about 
the data on the disk. You could just wipe the disk clean before you 
fdisk it. 'dd if=/dev/zero of=/dev/hda'

azie wrote:
> I'm using Dell Dimension PIV 2.0 with 40GB harddisk. When I try to use fdisk 
> to repartition my harddisk, I got this error.
> 
> [begin]
> 
> # fdisk /dev/hda
> 
> Command (m for help): p
> 
> Disk /dev/hda: 255 heads, 63 sectors, 2491 cylinders
> Units = cylinders of 16065 * 512 bytes
> 
> 
> 8 partitions:
> #       start       end      size     fstype   [fsize bsize   cpg]
>   a:        1         7*        6*    4.2BSD     1024  8192    16
>   b:        7*       40*       32*      swap
>   c:        1      2492*     2491*    unused        0     0
>   e:       40*       42*        2*    4.2BSD     1024  8192    16
>   f:       42*     2492*     2449*    4.2BSD     1024  8192    16
> 
> Command (m for help): n
> Segmentation fault
> 
> #
> 
> [end]
> 
> any idea why this happens and how to partition it using fdisk?
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.linux-learn.org/faqs



-- 
Bryan Whitehead
SysAdmin - JPL - Interferometry Systems and Technology
Phone: 818 354 2903
driver@jpl.nasa.gov

-
To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.linux-learn.org/faqs

Re: fdisk

[azie]

i don't have libsafe in /etc/ld.so.conf . The problem only occurs in /dev/hda. 
My /dev/hdb shows normal fdisk printout & can performs all fdisk commands :

Disk /dev/hdb: 255 heads, 63 sectors, 4863 cylinders
Units = cylinders of 16065 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/hdb1             1       392   3148708+   b  Win95 FAT32

The hda harddisk is the original harddisk that comes with Dell PC and 
previously preloaded with Windows XP. I wipe out everything during RedHat 7.3 
installation. The only way for me to partition & format the hda is during RH 
installation. Just wondering what exactly wrong with the harddisk. :)

On Thursday 18 July 2002 02:25 am, Bryan Whitehead wrote:
> Is libsafe being pre-loaded in /etc/ld.so.preload ?
>
> I had problems with fsck, fdisk, and mkfs.ext2 when libsafe was being
> preloaded.
>
> If the partition table is in some weird format, and you don't care about
> the data on the disk. You could just wipe the disk clean before you
> fdisk it. 'dd if=/dev/zero of=/dev/hda'
>
> azie wrote:
> > I'm using Dell Dimension PIV 2.0 with 40GB harddisk. When I try to use
> > fdisk to repartition my harddisk, I got this error.
> >
> > [begin]
> >
> > # fdisk /dev/hda
> >
> > Command (m for help): p
> >
> > Disk /dev/hda: 255 heads, 63 sectors, 2491 cylinders
> > Units = cylinders of 16065 * 512 bytes
> >
> >
> > 8 partitions:
> > #       start       end      size     fstype   [fsize bsize   cpg]
> >   a:        1         7*        6*    4.2BSD     1024  8192    16
> >   b:        7*       40*       32*      swap
> >   c:        1      2492*     2491*    unused        0     0
> >   e:       40*       42*        2*    4.2BSD     1024  8192    16
> >   f:       42*     2492*     2449*    4.2BSD     1024  8192    16
> >
> > Command (m for help): n
> > Segmentation fault
> >
> > #
> >
> > [end]
> >
> > any idea why this happens and how to partition it using fdisk?
> >
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-newbie"
> > in the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> > Please read the FAQ at http://www.linux-learn.org/faqs

-
To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.linux-learn.org/faqs