starter!

starter!

[darshak]

Hi All
I want to involve in JFFs3 development.
Please tell me what is required docs/knowledge for that.
How can I proceed for that ?

Thanxs
Darshak

Re: starter!

[Artem Bityutskiy]

Hi,

On Sat, 2006-11-18 at 14:49 +0530, darshak@elitecore.com wrote:
> Hi All
> I want to involve in JFFs3 development.
> Please tell me what is required docs/knowledge for that.
> How can I proceed for that ?

I guess you may start from the JFFS3 docs available at
http://www.linux-mtd.infradead.org/tech/JFFS3design.pdf

It is quite old and we changed our minds about several things.

You may also read Szeged guys docs at
http://www.inf.u-szeged.hu/jffs2/jffs3.php

But the last plan is to base JFFS3 on top of UBI which is a new
promising piece of software. Look at

http://www.linux-mtd.infradead.org/doc/ubi.html
http://www.linux-mtd.infradead.org/faq/ubi.html

So, to put it differently, there is no cool and clean documentation.
There is some code and prototypes but they are far from something usable
yet. But if you are eager enough you withstand this :-)

Alternatively, there is a LogFS project, see
http://www.linux-mtd.infradead.org/doc/logfs.html

I do not follow it but there is some code exist. You may be interested.

-- 
Best regards,
Artem Bityutskiy (Битюцкий Артём)

Re: starter!

[Darshak]

is JFFS2 is worth using for NAND flash ?
or it supports only NOR?

I come to know that JFFS2 has some problems at mounting [ takes longer 
time ] and occupies more RAM?
How much time does it take to mount 512 and 1 GB flash? How much RAM does it 
require?

Thanxs!
email: darshak@elitecore.com
----- Original Message ----- 
From: "Artem Bityutskiy" <dedekind@infradead.org>
To: <darshak@elitecore.com>
Cc: <linux-mtd@lists.infradead.org>
Sent: Saturday, November 18, 2006 6:21 PM
Subject: Re: starter!


> Hi,
>
> On Sat, 2006-11-18 at 14:49 +0530, darshak@elitecore.com wrote:
>> Hi All
>> I want to involve in JFFs3 development.
>> Please tell me what is required docs/knowledge for that.
>> How can I proceed for that ?
>
> I guess you may start from the JFFS3 docs available at
> http://www.linux-mtd.infradead.org/tech/JFFS3design.pdf
>
> It is quite old and we changed our minds about several things.
>
> You may also read Szeged guys docs at
> http://www.inf.u-szeged.hu/jffs2/jffs3.php
>
> But the last plan is to base JFFS3 on top of UBI which is a new
> promising piece of software. Look at
>
> http://www.linux-mtd.infradead.org/doc/ubi.html
> http://www.linux-mtd.infradead.org/faq/ubi.html
>
> So, to put it differently, there is no cool and clean documentation.
> There is some code and prototypes but they are far from something usable
> yet. But if you are eager enough you withstand this :-)
>
> Alternatively, there is a LogFS project, see
> http://www.linux-mtd.infradead.org/doc/logfs.html
>
> I do not follow it but there is some code exist. You may be interested.
>
> -- 
> Best regards,
> Artem Bityutskiy (Битюцкий Артём)
>
>
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/
> 

Re: starter!

[Artem Bityutskiy]

On Mon, 2006-11-20 at 10:09 +0530, Darshak wrote:
> is JFFS2 is worth using for NAND flash ?
> or it supports only NOR?
> 
> I come to know that JFFS2 has some problems at mounting [ takes longer 
> time ] and occupies more RAM?
> How much time does it take to mount 512 and 1 GB flash? How much RAM does it 
> require?

Just try it. I know people using it with 512 MiB NANDs and are quite
happy.

-- 
Best regards,
Artem Bityutskiy (Битюцкий Артём)

Re: starter!

[Darshak]

Thanxs! man
    But I m at very basic steps .I have some questions?
1> Is the kernel 2.6 comes with JFFS2 support ? And how do i enable/compile 
with JFFS2.
2> After that How will I partition MY flash so its JFFS2? Any tool ot 
specific method of that ?

plz provide methods/steps u have to do this
Thanxs!



----- Original Message ----- 
From: <srideep.devireddy@wipro.com>
To: <darshak@elitecore.com>
Sent: Monday, November 20, 2006 10:19 AM
Subject: RE: starter!



Yes you can very well use jffs2 for nand . it works fine .

-----Original Message-----
From: linux-mtd-bounces@lists.infradead.org 
[mailto:linux-mtd-bounces@lists.infradead.org] On Behalf Of Darshak
Sent: Monday, November 20, 2006 10:10 AM
To: dedekind@infradead.org
Cc: linux-mtd@lists.infradead.org
Subject: Re: starter!


is JFFS2 is worth using for NAND flash ?
or it supports only NOR?

I come to know that JFFS2 has some problems at mounting [ takes longer
time ] and occupies more RAM?
How much time does it take to mount 512 and 1 GB flash? How much RAM does it
require?

Thanxs!
email: darshak@elitecore.com
----- Original Message -----
From: "Artem Bityutskiy" <dedekind@infradead.org>
To: <darshak@elitecore.com>
Cc: <linux-mtd@lists.infradead.org>
Sent: Saturday, November 18, 2006 6:21 PM
Subject: Re: starter!


> Hi,
>
> On Sat, 2006-11-18 at 14:49 +0530, darshak@elitecore.com wrote:
>> Hi All
>> I want to involve in JFFs3 development.
>> Please tell me what is required docs/knowledge for that.
>> How can I proceed for that ?
>
> I guess you may start from the JFFS3 docs available at
> http://www.linux-mtd.infradead.org/tech/JFFS3design.pdf
>
> It is quite old and we changed our minds about several things.
>
> You may also read Szeged guys docs at
> http://www.inf.u-szeged.hu/jffs2/jffs3.php
>
> But the last plan is to base JFFS3 on top of UBI which is a new
> promising piece of software. Look at
>
> http://www.linux-mtd.infradead.org/doc/ubi.html
> http://www.linux-mtd.infradead.org/faq/ubi.html
>
> So, to put it differently, there is no cool and clean documentation.
> There is some code and prototypes but they are far from something usable
> yet. But if you are eager enough you withstand this :-)
>
> Alternatively, there is a LogFS project, see
> http://www.linux-mtd.infradead.org/doc/logfs.html
>
> I do not follow it but there is some code exist. You may be interested.
>
> --
> Best regards,
> Artem Bityutskiy (Битюцкий Артём)
>
>
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/
>


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Re: starter!

[Artem Bityutskiy]

On Mon, 2006-11-20 at 10:39 +0530, Darshak wrote:
> Thanxs! man
>     But I m at very basic steps .I have some questions?
> 1> Is the kernel 2.6 comes with JFFS2 support ? And how do i enable/compile 
> with JFFS2.
> 2> After that How will I partition MY flash so its JFFS2? Any tool ot 
> specific method of that ?
3. Do my work for me.

-- 
Best regards,
Artem Bityutskiy (Битюцкий Артём)

Re: starter!

[Darshak]

:(
I just need guidance & direction  :((


----- Original Message ----- 
From: "Artem Bityutskiy" <dedekind@infradead.org>
To: "Darshak" <darshak@elitecore.com>
Cc: <srideep.devireddy@wipro.com>; <linux-mtd@lists.infradead.org>
Sent: Monday, November 20, 2006 1:18 PM
Subject: Re: starter!


On Mon, 2006-11-20 at 10:39 +0530, Darshak wrote:
> Thanxs! man
>     But I m at very basic steps .I have some questions?
> 1> Is the kernel 2.6 comes with JFFS2 support ? And how do i 
> enable/compile
> with JFFS2.
> 2> After that How will I partition MY flash so its JFFS2? Any tool ot
> specific method of that ?
3. Do my work for me.

-- 
Best regards,
Artem Bityutskiy (Битюцкий Артём)