fdisk on cygwin

fdisk on cygwin

[PRASANTH RAJAGOPAL]

Hi,

I used to do run some commands on Cygwin, until I completely moved to
Linux based development. I have a situation where I thought Cygwin can
help me.

I need to partition an SDHC card. I have a SD slot in my Windows
laptop, but I dont have a good software to partition for boot and
linux. I have a SD Card reader that I could insert to Linux machine,
but it seems it has gone bad. I am not really familiar with
partitioning, but the commands from the relevant docs says I need to
use fdisk
(the web page is here http://omappedia.org/wiki/Minimal-FS_SD_Configuration).

required partitioning:

Device     Boot Start End  Blocks   Id  System
/dev/sde1 *       1      9     72261    c   W95 FAT32 (LBA)
/dev/sde2         10    120  891607+ 83 Linux


If I read mails correctly, the cygwin-1.3.16-1 release has fdisk with
it (http://sources.redhat.com/ml/cygwin/2002-11/msg01300.html), but it
was ultimately removed, and perhaps we need to compile now. from
source. Now, I am not interested in code compilation for time being
(got to do with a lot of Linux kernel compilation now...); I might
just buy a cheap Card reader.

Questions (assuming cygwin fdisk can indeed help me partition the SDcard):

1. Is it true that cygwin-1.3.16-1 haD fdisk, if so where can I find
that older release setup.exe?
2. Is there a way I can get the package to the latest release without
compilation?

Thanks.

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Re: fdisk on cygwin

[Marco atzeri]

On 6/17/2011 1:53 PM, PRASANTH RAJAGOPAL wrote:
> Hi,
>
> I used to do run some commands on Cygwin, until I completely moved to
> Linux based development. I have a situation where I thought Cygwin can
> help me.
>

> If I read mails correctly, the cygwin-1.3.16-1 release has fdisk with
> it (http://sources.redhat.com/ml/cygwin/2002-11/msg01300.html), but it
> was ultimately removed, and perhaps we need to compile now. from
> source. Now, I am not interested in code compilation for time being
> (got to do with a lot of Linux kernel compilation now...); I might
> just buy a cheap Card reader.
>
> Questions (assuming cygwin fdisk can indeed help me partition the SDcard):
>
> 1. Is it true that cygwin-1.3.16-1 haD fdisk, if so where can I find
> that older release setup.exe?
> 2. Is there a way I can get the package to the latest release without
> compilation?
>
> Thanks.

fdisk is still present

http://cygwin.com/cgi-bin2/package-cat.cgi?file=util-linux%2Futil-linux-2.17.2-1&grep=fdisk

no need to look on ancient cywgin versions.

Marco

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Re: fdisk on cygwin

[PRASANTH RAJAGOPAL]

Oops, I was searching for the package directly in the mirrors! I got
it installed now with utils...Thanks!

Now I have a problem that the SD card (inserted in to SD slot) is not
getting seen from fdisk. A USB stick can be seen though. Note that the
card is detected and works properly when accessed from WIndows Vista.
I also saw the correct drive J appears in /cygdrive.

sda - hdd
sdc - usb stick

############################################################

PRajagop@PRAJAGOP-L02 /usr/sbin
$ ./fdisk.exe -ls

Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xe7907177

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1       11891    95506748    7  HPFS/NTFS
/dev/sda2           11891       19266    59244544    7  HPFS/NTFS
/dev/sda3   *       19266       19458     1536000    7  HPFS/NTFS

Disk /dev/sdc: 2000 MB, 2000682496 bytes
64 heads, 63 sectors/track, 969 cylinders
Units = cylinders of 4032 * 512 = 2064384 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1         969     1953439+   6  FAT16

PRajagop@PRAJAGOP-L02 /cygdrive
$ ls
c  d  i  j  k  x

############################################################

Why is the SD card device missing with fdisk?

Thanks..



On Fri, Jun 17, 2011 at 5:28 PM, Marco atzeri <marco.atzeri@gmail.com> wrote:
> On 6/17/2011 1:53 PM, PRASANTH RAJAGOPAL wrote:
>>
>> Hi,
>>
>> I used to do run some commands on Cygwin, until I completely moved to
>> Linux based development. I have a situation where I thought Cygwin can
>> help me.
>>
>
>> If I read mails correctly, the cygwin-1.3.16-1 release has fdisk with
>> it (http://sources.redhat.com/ml/cygwin/2002-11/msg01300.html), but it
>> was ultimately removed, and perhaps we need to compile now. from
>> source. Now, I am not interested in code compilation for time being
>> (got to do with a lot of Linux kernel compilation now...); I might
>> just buy a cheap Card reader.
>>
>> Questions (assuming cygwin fdisk can indeed help me partition the SDcard):
>>
>> 1. Is it true that cygwin-1.3.16-1 haD fdisk, if so where can I find
>> that older release setup.exe?
>> 2. Is there a way I can get the package to the latest release without
>> compilation?
>>
>> Thanks.
>
> fdisk is still present
>
> http://cygwin.com/cgi-bin2/package-cat.cgi?file=util-linux%2Futil-linux-2.17.2-1&grep=fdisk
>
> no need to look on ancient cywgin versions.
>
> Marco
>
> --
> Problem reports:       http://cygwin.com/problems.html
> FAQ:                   http://cygwin.com/faq/
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>
>

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Re: fdisk on cygwin

[PRASANTH RAJAGOPAL]

Here is my mount info: *J* is the  SD card in SD slot and & *K* is the
USB stick.

PRajagop@PRAJAGOP-L02 /proc
$ cat mounts
D:/CYgWin/bin /usr/bin ntfs binary,auto 1 1
D:/CYgWin/lib /usr/lib ntfs binary,auto 1 1
D:/CYgWin / ntfs binary,auto 1 1
C: /cygdrive/c ntfs binary,posix=0,user,noumount,auto 1 1
D: /cygdrive/d ntfs binary,posix=0,user,noumount,auto 1 1
I: /cygdrive/i udf binary,posix=0,user,noumount,auto 1 1
J: /cygdrive/j vfat binary,posix=0,user,noumount,auto 1 1
K: /cygdrive/k vfat binary,posix=0,user,noumount,auto 1 1
X: /cygdrive/x ntfs binary,posix=0,user,noumount,auto 1 1

On Fri, Jun 17, 2011 at 7:01 PM, PRASANTH RAJAGOPAL
<prasanthris@gmail.com> wrote:

Now I have a problem that the SD card (inserted in to SD slot) is not
getting seen from fdisk. A USB stick can be seen though. Note that the
card is detected and works properly when accessed from WIndows Vista.
I also saw the correct drive J appears in /cygdrive.

sda - hdd
sdc - usb stick

############################################################

PRajagop@PRAJAGOP-L02 /usr/sbin
$ ./fdisk.exe -ls

Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xe7907177


  Device Boot      Start         End      Blocks   Id  System

/dev/sda1               1       11891    95506748    7  HPFS/NTFS
/dev/sda2           11891       19266    59244544    7  HPFS/NTFS
/dev/sda3   *       19266       19458     1536000    7  HPFS/NTFS

Disk /dev/sdc: 2000 MB, 2000682496 bytes
64 heads, 63 sectors/track, 969 cylinders
Units = cylinders of 4032 * 512 = 2064384 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


  Device Boot      Start         End      Blocks   Id  System

/dev/sdc1               1         969     1953439+   6  FAT16

PRajagop@PRAJAGOP-L02 /cygdrive
$ ls
c  d  i  j  k  x

############################################################

> On Fri, Jun 17, 2011 at 5:28 PM, Marco atzeri <marco.atzeri@gmail.com> wrote:
>> On 6/17/2011 1:53 PM, PRASANTH RAJAGOPAL wrote:
>>>
>>> Hi,
>>>
>>> I used to do run some commands on Cygwin, until I completely moved to
>>> Linux based development. I have a situation where I thought Cygwin can
>>> help me.
>>>
>>
>>> If I read mails correctly, the cygwin-1.3.16-1 release has fdisk with
>>> it (http://sources.redhat.com/ml/cygwin/2002-11/msg01300.html), but it
>>> was ultimately removed, and perhaps we need to compile now. from
>>> source. Now, I am not interested in code compilation for time being
>>> (got to do with a lot of Linux kernel compilation now...); I might
>>> just buy a cheap Card reader.
>>>
>>> Questions (assuming cygwin fdisk can indeed help me partition the SDcard):
>>>
>>> 1. Is it true that cygwin-1.3.16-1 haD fdisk, if so where can I find
>>> that older release setup.exe?
>>> 2. Is there a way I can get the package to the latest release without
>>> compilation?
>>>
>>> Thanks.
>>
>> fdisk is still present
>>
>> http://cygwin.com/cgi-bin2/package-cat.cgi?file=util-linux%2Futil-linux-2.17.2-1&grep=fdisk
>>
>> no need to look on ancient cywgin versions.
>>
>> Marco
>>
>> --
>> Problem reports:       http://cygwin.com/problems.html
>> FAQ:                   http://cygwin.com/faq/
>> Documentation:         http://cygwin.com/docs.html
>> Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
>>
>>
>

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Re: fdisk on cygwin

[Rolf Campbell]

On 2011-06-17 10:27, PRASANTH RAJAGOPAL wrote:
> Here is my mount info: *J* is the  SD card in SD slot and&  *K* is the
> USB stick.
>
> PRajagop@PRAJAGOP-L02 /proc
> $ cat mounts
> D:/CYgWin/bin /usr/bin ntfs binary,auto 1 1
> D:/CYgWin/lib /usr/lib ntfs binary,auto 1 1
> D:/CYgWin / ntfs binary,auto 1 1
> C: /cygdrive/c ntfs binary,posix=0,user,noumount,auto 1 1
> D: /cygdrive/d ntfs binary,posix=0,user,noumount,auto 1 1
> I: /cygdrive/i udf binary,posix=0,user,noumount,auto 1 1
> J: /cygdrive/j vfat binary,posix=0,user,noumount,auto 1 1
> K: /cygdrive/k vfat binary,posix=0,user,noumount,auto 1 1
> X: /cygdrive/x ntfs binary,posix=0,user,noumount,auto 1 1
>
> On Fri, Jun 17, 2011 at 7:01 PM, PRASANTH RAJAGOPAL
> <prasanthris@gmail.com>  wrote:
>
> Now I have a problem that the SD card (inserted in to SD slot) is not
> getting seen from fdisk. A USB stick can be seen though. Note that the
> card is detected and works properly when accessed from WIndows Vista.
> I also saw the correct drive J appears in /cygdrive.

Yeah, I've seen this before.  Some drivers for built-in SD-card readers 
use *special* drivers that somehow avoid having the raw device visible 
in the normal way.  The way I got around it was to use an external, 
USB-based card reader.  IIRC, the raw disk device doesn't even show up 
in the disk manager application (under the XP Administrative Tools 
control panel program), which means this is probably not a cygwin bug.


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