From: Casimiro de Almeida Barreto Subject: Re: Troubleshooting pendrive ext2fs Date: Wed, 19 Aug 2009 12:42:03 -0300 Message-ID: <4A8C1D4B.8050704@gmail.com> References: <4A8B289E.5000701@gmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigFF3DBBFE8E182CD30D877C1C" Cc: Development discussions related to Fedora To: linux-ext4@vger.kernel.org Return-path: Received: from mail-yx0-f175.google.com ([209.85.210.175]:63454 "EHLO mail-yx0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752333AbZHSPmS (ORCPT ); Wed, 19 Aug 2009 11:42:18 -0400 Received: by mail-yx0-f175.google.com with SMTP id 5so5500185yxe.33 for ; Wed, 19 Aug 2009 08:42:19 -0700 (PDT) In-Reply-To: <4A8B289E.5000701@gmail.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigFF3DBBFE8E182CD30D877C1C Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Discovered the problem: The pendrive is a counterfeit. VID=3D1043 PDI=3D8012 does not correspond = to Kingston (iChips ???). Somehow it is capable of storing 16GBytes of data (I recorded a file and then unconnected the pendrive and reconnected it and verified the content via cat $FILE | md5sum > /tmp/check.md5... Device readily sent to police, so they'll ask the store how it appeared there. Sorry for the inconvenience. CdAB Em 18-08-2009 19:18, Casimiro de Almeida Barreto escreveu: > Hello, > > I've trouble creating an ext2/ext3/ext4 file system in a 64GBytes pendr= ive. > > The device appears at /proc/bus/usb/devices as: > > T: Bus=3D01 Lev=3D01 Prnt=3D01 Port=3D04 Cnt=3D01 Dev#=3D 4 Spd=3D480= MxCh=3D 0 > D: Ver=3D 2.00 Cls=3D00(>ifc ) Sub=3D00 Prot=3D00 MxPS=3D64 #Cfgs=3D = 1 > P: Vendor=3D1043 ProdID=3D8012 Rev=3D 1.00 > S: Manufacturer=3DGeneric > S: Product=3DFlash Disk > C:* #Ifs=3D 1 Cfg#=3D 1 Atr=3D80 MxPwr=3D100mA > I:* If#=3D 0 Alt=3D 0 #EPs=3D 2 Cls=3D08(stor.) Sub=3D06 Prot=3D50 Driv= er=3Dusb-storage > E: Ad=3D81(I) Atr=3D02(Bulk) MxPS=3D 512 Ivl=3D0ms > E: Ad=3D02(O) Atr=3D02(Bulk) MxPS=3D 512 Ivl=3D0ms > > It's partioned as: > > Disk /dev/sdd: 67.1 GB, 67108864512 bytes > 64 heads, 32 sectors/track, 64000 cylinders > Units =3D cilindros of 2048 * 512 =3D 1048576 bytes > Disk identifier: 0x4a26a3ed > > Dispositivo Boot Start End Blocks Id System > /dev/sdd1 1 64000 65535984 83 Linux > > And raw partition table data is: > > Disk /dev/sdd: 64 heads, 32 sectors, 64000 cylinders > > Nr AF Hd Sec Cyl Hd Sec Cyl Start Size ID > 1 00 1 1 0 63 32 1023 32 131071968 83 > 2 00 0 0 0 0 0 0 0 0 00 > 3 00 0 0 0 0 0 0 0 0 00 > 4 00 0 0 0 0 0 0 0 0 00 > > Disk was formatted with the following command: > > [root@localhost ~]# mkfs.ext2 -L kingston -M /media/kingston -O > large_file,extent /dev/sdd1 > mke2fs 1.41.4 (27-Jan-2009) > Filesystem label=3Dkingston > OS type: Linux > Block size=3D4096 (log=3D2) > Fragment size=3D4096 (log=3D2) > 4096000 inodes, 16383996 blocks > 819199 blocks (5.00%) reserved for the super user > First data block=3D0 > Maximum filesystem blocks=3D0 > 500 block groups > 32768 blocks per group, 32768 fragments per group > 8192 inodes per group > Superblock backups stored on blocks: > 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654= 208, > 4096000, 7962624, 11239424 > > Writing inode tables: done =20 > Writing superblocks and filesystem accounting information: done > > This filesystem will be automatically checked every 33 mounts or > 180 days, whichever comes first. Use tune2fs -c or -i to override. > > And then checked: > > # fsck -f -v /dev/sdd1 > > Resulting in: > > [root@localhost ~]# fsck -v -f /dev/sdd1 > fsck 1.41.4 (27-Jan-2009) > e2fsck 1.41.4 (27-Jan-2009) > Pass 1: Checking inodes, blocks, and sizes > Pass 2: Checking directory structure > Pass 3: Checking directory connectivity > Pass 4: Checking reference counts > Pass 5: Checking group summary information > Block bitmap differences: +(32768--34306) +(65536--66049) > +(98304--99842) +(131072--131585) +(163840--165378) +(196608--197121) > +(229376--230914) +(262144--262657) +(294912--296450) +(327680--328193)= > +(360448--360961) +(393216--393729) +(425984--426497) +(458752--459265)= > +(491520--492033) +(524288--524801) +(557056--557569) +(589824--590337)= > +(622592--623105) +(655360--655873) +(688128--688641) +(720896--721409)= > +(753664--754177) +(786432--786945) +(819200--820738) +(851968--852481)= > +(884736--886274) +(917504--918017) +(950272--950785) +(983040--983553)= > 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+(14745600--14746113) > +(14778368--14778881) +(14811136--14811649) +(14843904--14844417) > +(14876672--14877185) +(14909440--14909953) +(14942208--14942721) > +(14974976--14975489) +(15007744--15008257) +(15040512--15041025) > +(15073280--15073793) +(15106048--15106561) +(15138816--15139329) > +(15171584--15172097) +(15204352--15204865) +(15237120--15237633) > +(15269888--15270401) +(15302656--15303169) +(15335424--15335937) > +(15368192--15368705) +(15400960--15401473) +(15433728--15434241) > +(15466496--15467009) +(15499264--15499777) +(15532032--15532545) > +(15564800--15565313) +(15597568--15598081) +(15630336--15630849) > +(15663104--15663617) +(15695872--15696385) +(15728640--15729153) > +(15761408--15761921) +(15794176--15794689) +(15826944--15827457) > +(15859712--15860225) +(15892480--15892993) +(15925248--15925761) > +(15958016--15958529) +(15990784--15991297) +(16023552--16024065) > +(16056320--16056833) +(16089088--16089601) +(16121856--16122369) > +(16154624--16155137) +(16187392--16187905) +(16220160--16220673) > +(16252928--16253441) +(16285696--16286209) +(16318464--16318977) > +(16351232--16351745) > Fix? > > If I fsck without -f, /dev/sdd1 will not be checked (it's marked as > clean)... > > Then, if I ignore the errors, mount /dev/sdd1 at /media/kingston and do= : > > # PREFIX=3D/media/kingston/`date +%y%m%d%H%M` > # tar cjPf - /home /opt /usr/local | gpg -c -a -z0 --cipher-algo=3Daes2= 56 > -o ${PREFIX}.asc > > It will create the backup file. > > But, if I try: > > # md5sum ${PREFIX}.asc > ${PREFIX}.md5 > > it will complain that "cannot write to device"... > > I checked the device with: > > # badblocks -w -v /dev/sdd1 and it went through without finding errors.= > > What's going wild with this particular device??? > > > =20 --------------enigFF3DBBFE8E182CD30D877C1C Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP 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