Eric H. Johnson on 9 Jan 2013 17:42:25 -0800

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Re: [PLUG] Partitioning an SD Card


Thanks, that got it. I could swear I tried that and got an error, but it
worked this time.


On Wed, Jan 9, 2013 at 5:15 PM, Eric H. Johnson <>
> # ls /dev/sd
> # fdisk -u=sectors /dev/sdb1

This is incorrect.  The correct command is fdisk -u=sectors /dev/sdb - no
"1" at the end.

/dev/sdb1 IS the first partition on /dev/sdb.  If you run fdisk on it then
you end up creating partitions inside that partition.  Linux displays these
as /dev/sdb1p1 and so on.  When you create a filesystem on /dev/sdb1 you
overwrite the nested partition table, and so the nested partitions go away.
I doubt you can boot off of nested partitions.

What you want to do is create a partition table in /dev/sdb, and however
many partitions as you need.  Those will then show up as /dev/sdb1,
/dev/sdb2, and so on.  You can create filesystems inside of each.  You
shouldn't see any partitions with a letter p in them.

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