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Date: Wed, 07 Oct 2009 18:55:20 -0400
From: dhk <dhkuhl@optonline.net>
Subject: Re: [gentoo-user] Formating a USB stick
In-reply-to: <200910072330.36480.michaelkintzios@gmail.com>
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Mick wrote:
> What's the best way to reformat a USB stick?  It currently shows this in 
> fdisk:
> ===========================================
> Disk /dev/sda: 1010 MB, 1010826752 bytes
> 255 heads, 63 sectors/track, 122 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> Disk identifier: 0x91f72d24
> 
>    Device Boot      Start         End      Blocks   Id  System
> /dev/sda1   *           1         123      987104    6  FAT16
> Partition 1 has different physical/logical endings:
>      phys=(121, 254, 63) logical=(122, 227, 40)
> ===========================================
> Not sure I understand the "physical/logical endings" comment that fdisk throws 
> at me.
> 
> 
> This is what sfdisk shows:
> ===========================================
> # sfdisk /dev/sda
> Checking that no-one is using this disk right now ...
> OK
> 
> Disk /dev/sda: 1011 cylinders, 32 heads, 61 sectors/track
> Old situation:
> Warning: The partition table looks like it was made
>   for C/H/S=*/255/63 (instead of 1011/32/61).
> For this listing I'll assume that geometry.
> Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
> 
>    Device Boot Start     End   #cyls    #blocks   Id  System
> /dev/sda1   *      0+    122-    123-    987104    6  FAT16
>                 end: (c,h,s) expected (122,227,40) found (121,254,63)
> /dev/sda2          0       -       0          0    0  Empty
> /dev/sda3          0       -       0          0    0  Empty
> /dev/sda4          0       -       0          0    0  Empty
> Input in the following format; absent fields get a default value.
> ===========================================
> 
> Grateful for any attempt to educate me on this!  :-)

I use fdisk and treat it like any other drive/disk.