changing card in a reader (revisited)

[hoe-waa at hawaii.rr.com]

----- Original Message -----
From: hoe-waa at hawaii.rr.com
Date: Tuesday, July 20, 2004 8:58 am
Subject: Re: changing card in a reader (revisited)

> 
> 
> 
> From: Dinesh Nair <dinesh at alphaque.com>
> Date: Tuesday, July 20, 2004 7:44 am
> 
> > 
> > what does '/sbin/fdisk da2' say ?
> > 
> > Regards,                           
> 
> 
> Aloha and Mahalo
> 
> I do get something different displayed with fdisk.
> 
> <insert and mount 8MB card>
> 
> hp# mount_msdosfs /dev/da2s1 /mnt/olympus
> hp# /sbin/fdisk da2
> ******* Working on device /dev/da2 *******
> parameters extracted from in-core disklabel are:
> cylinders=7 heads=64 sectors/track=32 (2048 blks/cyl)
> 
> parameters to be used for BIOS calculations are:
> cylinders=7 heads=64 sectors/track=32 (2048 blks/cyl)
> 
> Media sector size is 512
> Warning: BIOS sector numbering starts with sector 1
> Information from DOS bootblock is:
> The data for partition 1 is:
> sysid 1 (0x01),(Primary DOS with 12 bit FAT)
>    start 25, size 15975 (7 Meg), flag 80 (active)
>        beg: cyl 0/ head 1/ sector 10;
>        end: cyl 249/ head 3/ sector 16
> The data for partition 2 is:
> <UNUSED>
> The data for partition 3 is:
> <UNUSED>
> The data for partition 4 is:
> <UNUSED>
> 
> hp# umount /mnt/olympus
> 
> <change to 128MB card>
> 
> hp# mount_msdosfs /dev/da2s1 /mnt/olympus
> mount_msdosfs: /dev/da2s1: Invalid argument
> hp# /sbin/fdisk da2
> ******* Working on device /dev/da2 *******
> parameters extracted from in-core disklabel are:
> cylinders=125 heads=64 sectors/track=32 (2048 blks/cyl)
> 
> parameters to be used for BIOS calculations are:
> cylinders=125 heads=64 sectors/track=32 (2048 blks/cyl)
> 
> Media sector size is 512
> Warning: BIOS sector numbering starts with sector 1
> Information from DOS bootblock is:
> The data for partition 1 is:
> sysid 6 (0x06),(Primary 'big' DOS (>= 32MB))
>    start 47, size 255953 (124 Meg), flag 80 (active)
>        beg: cyl 0/ head 1/ sector 16;
>        end: cyl 499/ head 15/ sector 32
> The data for partition 2 is:
> <UNUSED>
> The data for partition 3 is:
> <UNUSED>
> The data for partition 4 is:
> <UNUSED>
> hp#
> 
> Is it the "Primary 'big" that's messing me up?
> 
> Robert
> 
Forfeiting 6 karma points for responding to my own post.

Being curious, I unplugged and replugged the USB cable.
I then reran fdisk with the 128MB card mounted.

hp# ls -l /dev/da*
crw-r-----  1 root  operator    4,  27 Jul 19 06:19 /dev/da0
crw-r-----  1 root  operator    4,  28 Jul 19 06:19 /dev/da1
crw-r-----  1 root  operator    4,  29 Jul 19 06:19 /dev/da2
crw-r-----  1 root  operator    4,  30 Jul 19 06:19 /dev/da2s1
crw-r-----  1 root  operator    4,  31 Jul 19 06:19 /dev/da3
crw-r-----  1 root  operator    4,  24 Jul 19 06:19 /dev/da4
crw-rw----  1 root  wheel       4,  26 Jul 19 06:19 /dev/da4s1
hp# mount_msdosfs /dev/da2s1 /mnt/olympus
hp# /sbin/fdisk da2
******* Working on device /dev/da2 *******
parameters extracted from in-core disklabel are:
cylinders=125 heads=64 sectors/track=32 (2048 blks/cyl)

parameters to be used for BIOS calculations are:
cylinders=125 heads=64 sectors/track=32 (2048 blks/cyl)

Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 6 (0x06),(Primary 'big' DOS (>= 32MB))
    start 47, size 255953 (124 Meg), flag 80 (active)
        beg: cyl 0/ head 1/ sector 16;
        end: cyl 499/ head 15/ sector 32
The data for partition 2 is:
<UNUSED>
The data for partition 3 is:
<UNUSED>
The data for partition 4 is:
<UNUSED>

It looks the same!

Robert