From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mrqout3.tiscali.it ([195.130.225.13]) by bombadil.infradead.org with esmtp (Exim 4.68 #1 (Red Hat Linux)) id 1K3vFG-0002GF-AC for linux-mtd@lists.infradead.org; Wed, 04 Jun 2008 15:49:51 +0000 Received: from ps23 (10.39.75.93) by mail-5-it.mail.tiscali.sys (8.0.016) id 4816F17C000B7BFA for linux-mtd@lists.infradead.org; Wed, 4 Jun 2008 17:49:42 +0200 Message-ID: <25645542.1212594582569.JavaMail.root@ps23> Date: Wed, 4 Jun 2008 17:49:42 +0200 (CEST) From: "iw3gtf@tiscali.it" To: linux-mtd@lists.infradead.org Subject: Cannot write to ubi volume MIME-Version: 1.0 Content-Type: text/plain;charset="UTF-8" Content-Transfer-Encoding: 7bit Reply-To: "iw3gtf@tiscali.it" List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hallo, according to the ubi documentation it should be possible to 'write' in a, say, /dev/ubi1_0 (dynamic) volume device. I tried the following without success: root@giorgio [ ~ ]# ubimkvol /dev/ubi1 -N "rootfs" -s 32MiB Volume ID 0, size 265 LEBs (33648640 bytes, 32.1 MiB), LEB size 126976 bytes (124.0 KiB), dynamic, name "rootfs", alignment 1 root@giorgio [ ~ ]# ls -al /dev/ubi* crw-rw---- 1 root root 254, 0 1970-01-01 01:00 /dev/ubi0 crw-rw---- 1 root root 254, 2 1970-01-01 01:00 /dev/ubi0_1 crw-rw---- 1 root root 253, 0 1970-01-01 01:00 /dev/ubi1 crw-rw---- 1 root root 253, 1 2008-06-04 17:03 /dev/ubi1_0 crw-rw---- 1 root root 10, 63 1970-01-01 01:00 /dev/ubi_ctrl root@giorgio [ ~ ]# dd if=/usr/local/tftp_root/k of=/dev/ubi1_0 count=1960020 bs=1 dd: writing `/dev/ubi1_0': Operation not permitted 1+0 records in 0+0 records out 0 bytes (0 B) copied, 0.00690123 s, 0.0 kB/s root@giorgio [ ~ ]# ubinfo /dev/ubi1_0 Volume ID: 0 (on ubi1) Type: dynamic Alignment: 1 Size: 265 LEBs (33648640 bytes, 32.1 MiB) State: OK Name: rootfs Character device major/minor: 253:1 Am I completely wrong trying to write with a 'dd' ? How should I proceed to write something into the volume ? Is it possible to write something 'directly' in an ubi volume without explicitly formatting an image file (with 'ubinize' for example) ? Excuse me if my questions are a bit silly or naive and thank you for your explanations. giorgio _________________________________________________________________ Non perdere altro tempo...corri incontro all'amore! http://incontri.tiscali.it/