From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.nokia.com ([192.100.122.233] helo=mgw-mx06.nokia.com) by bombadil.infradead.org with esmtps (Exim 4.68 #1 (Red Hat Linux)) id 1Jhe8V-00061b-Ic for linux-mtd@lists.infradead.org; Fri, 04 Apr 2008 05:06:47 +0000 Subject: Re: can't mount ubifs on volume smaller than 265 LEBs/32MiB From: Artem Bityutskiy To: Hamish Moffatt In-Reply-To: <20080404041251.GA2752@cloud.net.au> References: <20080404041251.GA2752@cloud.net.au> Content-Type: text/plain; charset=utf-8 Date: Fri, 04 Apr 2008 08:06:19 +0300 Message-Id: <1207285579.8040.14.camel@sauron> Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Cc: linux-mtd@lists.infradead.org Reply-To: dedekind@infradead.org List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Fri, 2008-04-04 at 15:12 +1100, Hamish Moffatt wrote: > With a LEB size of 126kb, any file system < 265 LEBs won't mount, > failing in validate_sb. Hmm... > # ubimkvol /dev/ubi0 -N config -S 264 > Volume ID 2, size 264 LEBs (34062336 bytes, 32.5 MiB), LEB size 129024 by= tes (126.0 KiB), dynamic, name "config", alignment 1 > # mount /rw > mount: mounting ubi0:config on /rw failed: Invalid argument >=20 > # dmesg > [...] > [ 1191.360000] UBIFS error (pid 2804): validate_sb: bad superblock I'll look at this shortly, thanks for the report. As a suggestion, if you have problems with UBIFS and going to send a bug-report, try to enable debugging, reproduce the problem and send dmesg. With debugging enabled it prints more useful information and makes it easier to identify and fix the issue. --=20 Best regards, Artem Bityutskiy (=D0=91=D0=B8=D1=82=D1=8E=D1=86=D0=BA=D0=B8=D0=B9 =D0=90= =D1=80=D1=82=D1=91=D0=BC)