Re: 2.6 partition support driver methods
From: Jonathan Corbet (corbet_at_lwn.net)
Date: 08/04/05
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To: "Mukund JB." <mukundjb@esntechnologies.co.in> Date: Thu, 04 Aug 2005 08:39:24 -0600
Mukund JB. <mukundjb@esntechnologies.co.in> wrote:
> BUT, when a card is inserted in the socket 3, I am NOT able to mount and
> it says.
> Mount: /dev/tfa12 is not a valid block device
>
> Can you convey me where exactly I am missing or why is it failing?
First step would be to look in /proc/partitions (and the system logfile)
to get an idea of what the kernel thinks is there. When you call
add_disk(), the kernel should emit some messages noting the partitions
that it sees. My guess is a mismatch of minor numbers between your
device nodes and what the kernel sees (it's hard for me to make complete
sense out of your minor number logic), but I could be wrong.
jon
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