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 11:50:42 +0200 [thread overview]
Message-ID: <1295344242.2470.117.camel@koala> (raw)
In-Reply-To: <1295343055.2470.105.camel@koala>
On Tue, 2011-01-18 at 11:30 +0200, Artem Bityutskiy wrote:
> 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.
And note, strictly speaking --jrn-size is about buds size. This is
confusing naming. But I think we wanted to hide complexities from the
user and make him think that the journal is some area of fixed size, and
--jrn-size defines it. But probably that was a bad idea, not sure.
--
Best Regards,
Artem Bityutskiy (Битюцкий Артём)
prev parent reply other threads:[~2011-01-18 9:50 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
2011-01-18 9:50 ` Artem Bityutskiy [this message]
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