RFC: stop mounting /dev/mtdblockX but mount mtdX (without /dev) instead

RFC: stop mounting /dev/mtdblockX but mount mtdX (without /dev) instead

[Koen Kooi]

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Hi,

Chris Ball from the OLPC project was kind (and patient) enough to explain the first item
of http://www.linux-mtd.infradead.org/archive/tech/faq.html to me.

It seems that most machines in OE with MTD have something like:

/dev/mtdblock2  /               jffs2   defaults        1  1
/dev/mtdblock3  /home   	jffs2   defaults        1  1

in their fstab, which apparently is wrong. The trick to understanding the FAQ entry is not
to think in terms of actual devices and controllers, but in terms of fstab. So 'block
devices' translate to the emulated block devices present as /dev/mtdblockX and 'mtd'
refers to mtdX.

The correct fstab should be:

mtd2  /         jffs2   defaults        1  1
mtd3  /home   	jffs2   defaults        1  1

I don't know which kernel version introduced it, but it seems to work on 2.6.16.

What do you think?

regards,

Koen
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Re: RFC: stop mounting /dev/mtdblockX but mount mtdX (without /dev) instead

[Hans Henry von Tresckow]

sounds OK to me. Will this improve performance as well?

On 2/21/07, Koen Kooi <koen@dominion.kabel.utwente.nl> wrote:
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi,
>
> Chris Ball from the OLPC project was kind (and patient) enough to explain
> the first item
> of http://www.linux-mtd.infradead.org/archive/tech/faq.html to me.
>
> It seems that most machines in OE with MTD have something like:
>
> /dev/mtdblock2  /               jffs2   defaults        1  1
> /dev/mtdblock3  /home           jffs2   defaults        1  1
>
> in their fstab, which apparently is wrong. The trick to understanding the
> FAQ entry is not
> to think in terms of actual devices and controllers, but in terms of
> fstab. So 'block
> devices' translate to the emulated block devices present as /dev/mtdblockX
> and 'mtd'
> refers to mtdX.
>
> The correct fstab should be:
>
> mtd2  /         jffs2   defaults        1  1
> mtd3  /home     jffs2   defaults        1  1
>
> I don't know which kernel version introduced it, but it seems to work on
> 2.6.16.
>
> What do you think?
>
> regards,
>
> Koen
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> Version: GnuPG v1.4.5 (Darwin)
>
> iD8DBQFF3Kl6MkyGM64RGpERAhiaAKCdBvq8lwBfM2lzzt+vGS28KcY1VwCeNgvN
> Fyi+w99uUA+KF2bZOdDLBq0=
> =bELj
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>
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