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From: Artem Bityutskiy <dedekind1@gmail.com>
To: Andrew Murray <amurray@mpcdata.com>
Cc: linux-mtd@lists.infradead.org
Subject: Re: validate_sb: bad superblock, error 8 (Minimum UBI volume size for UBIFS image)
Date: Tue, 18 Jan 2011 11:30:55 +0200	[thread overview]
Message-ID: <1295343055.2470.105.camel@koala> (raw)
In-Reply-To: <1295342200.2470.97.camel@koala>

On Tue, 2011-01-18 at 11:16 +0200, Artem Bityutskiy wrote:
> Anyway, the only way for the user to affect the minimum FS size is the
> --jrn-size option of mkfs.ubifs. How to calculate what will be the
> minimum? Not sure, probably UBIFS_MIN_JNL_LEBS = 5 LEBs or something
> close to this.

Ah, this is wrong, you can set the log size with --log-lebs as well.

So UBIFS journal = log + buds.

--log-lebs set the log size
--jrn-size sets the buds size.

But AFAICS, you can use --jrn-size and mkfs.ubifs will automatically
calculate minimum amount of log lebs required.

-- 
Best Regards,
Artem Bityutskiy (Битюцкий Артём)

  reply	other threads:[~2011-01-18  9:31 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-11  9:47 validate_sb: bad superblock, error 8 (Minimum UBI volume size for UBIFS image) Andrew Murray
2011-01-15 10:48 ` Andrew Murray
2011-01-15 22:09   ` Andrew Murray
2011-01-15 22:22     ` Artem Bityutskiy
2011-01-18  9:41     ` Artem Bityutskiy
2011-01-18  9:18   ` Artem Bityutskiy
2011-01-18  9:16 ` Artem Bityutskiy
2011-01-18  9:30   ` Artem Bityutskiy [this message]
2011-01-18  9:50     ` Artem Bityutskiy

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