Messages in this thread | | | From | "Samuel M Umbach" <> | Subject | Re: DVD-ROM problems | Date | Wed, 09 Feb 2000 20:41:08 CST |
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Below are the lines from dmesg as I follow these steps:
1) Insert CD-ROM (Windows 98 OEM CD) 2) mount /cd ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: changing to secondary root 3) umount /cd 4) insmod udf udf: registering filesystem 5) Remove CD, insert DVD (Tomorrow Never Dies) 6) tstdvd /dev/cdrom 7) mount /dvd UDF-fs DEBUG (lowlevel.c, 71): udf_get_last_session: XA disk: no, vol_desc_start=0 UDF-fs DEBUG (super.c, 1334): udf_read_super: Multi-session=0 UDF-fs DEBUG (lowlevel.c, 366): udf_get_last_block: BLKGETSIZE lblock=1278372 UDF-fs DEBUG (super.c, 1343): udf_read_super: Lastblock=0 UDF-fs DEBUG (super.c, 434): udf_vrs: Starting at sector 16 (2048 Byte Sectors) UDF-fs DEBUG (super.c, 461): udf_vrs: ISO9660 Primary Volume Descriptor found UDF-fs DEBUG (super.c, 470): udf_vrs: ISO9660 Volume Descriptor Set Terminator found UDF-fs DEBUG (super.c, 782): udf_vol_pvoldesc: recording time 891862088, 1998/4/6 7:28 (1e20) UDF-fs DEBUG (super.c, 889): udf_load_logicalvol: Partition (0) type 1 UDF-fs DEBUG (super.c, 931): udf_load_logicalvol: FileSet found in LogicalVolDesc at block=0, partition=0 UDF-fs DEBUG (super.c, 828): udf_load_partdesc: Searching map: (0 == 0) UDF-fs DEBUG (super.c, 868): udf_load_partdesc: Partition (0:0 type 1511) starts at physical 261, block length 4122530 UDF-fs DEBUG (super.c, 1155): udf_load_partition: Using anchor in block 256 UDF-fs DEBUG (super.c, 756): udf_find_fileset: Fileset at block=0, partition=0 UDF-fs DEBUG (super.c, 814): udf_find_fileset: Rootdir at block=2, partition=0 UDF-fs INFO Mounting volume '', timestamp 1998/04/6 06:28 8) cat /dvd/VIDEO_TS/VTS_01_0.VOB > /dev/null (can read entire file) 9) cat /dvd/VIDEO_TS/VTS_01_1.VOB > /dev/null (can read part of file) (NOTE: this message is repeated many times, and fills dmesg's buffer) 16:00: rw=0, want=639210, limit=639186 dev 16:00 blksize=2048 blocknr=319604 sector=1278416 size=2048 count=1 attempt to access beyond end of device (this message is repeated from want=639210 through want=639188 in increments of 2, although there may be previous lines that were pushed out of the buffer) 10) cat /dvd/VIDEO_TS/VTS_02_1.VOB > /dev/null (can't read file) attempt to access beyond end of device 16:00: rw=0, want=4019352, limit=639186 dev 16:00 blksize=2048 blocknr=2009675 sector=8038700 size=2048 count=1 attempt to access beyond end of device 16:00: rw=0, want=4019354, limit=639186 dev 16:00 blksize=2048 blocknr=2009676 sector=8038700 size=2048 count=1 attempt to access beyond end of device 16:00: rw=0, want=4019352, limit=639186 dev 16:00 blksize=2048 blocknr=2009675 sector=8038700 size=2048 count=1 attempt to access beyond end of device 16:00: rw=0, want=4019354, limit=639186 dev 16:00 blksize=2048 blocknr=2009676 sector=8038700 size=2048 count=1 12) umount /dvd
Sorry for the verbosity of this message, I just want to make sure you have all that you need. Also, that "limit=639186" is not dependant on which DVD I'm trying to read, but does change depending on the last CD I had mounted. That may be the root of my problem.
In my original message I mentioned a program I wrote to count characters in a file. What I found was that if I mounted a CD-ROM, and it was 450 MB, then unmounted the CD and mounted and authenticated a DVD I could read 450MB from /dev/cdrom and then I received an EOF. This doesn't happen with the Toshiba drive so that's why I figured it must be in the hardware and was hoping a work around could be found.
-Sam Umbach
> >On Wed, Feb 09 2000, Samuel M Umbach wrote: > > This is what I do at the root prompt (w/ the Pioneer drive) > > > > #mount /dvd > > #tstdvd /dev/cdrom > >(usually you tstdvd prior to mounting, but it's usually not a problem). > > > not Authenticated > > Request AGID [1]... AGID 0 > > Host Sending Challenge: 09 08 07 06 05 04 03 02 01 00 > > LU sent key1: FD 14 D4 74 2A > > Drive Authentic - using varient 0 > > LU sent challenge: 23 22 8E F5 86 EE BB 8B CB 3F > > Host sending key 2: 8D 8D 6B C7 9B > > DVD is authenticated > > Received Session Key: B6 3D 2A 82 94 > > not Authenticated > > Received Disc Key: 7A 7D 51 2E ED 2F 06 89 A6 6C > > Authenticated > > > > #cat /dvd/VIDEO_TS/VTS_02_1.VOB > > cat: /dvd/VIDEO_TS/VTS_02_1.VOB: Input/output error > >Ok, so it authenticates fine at least. I'd like to see the errors that >get dumped to the logs at this point (dmesg), this might not be a >plain I/O error. > >-- >* Jens Axboe <axboe@suse.de> >* Linux CD-ROM Maintainer >* http://www.kernel.dk
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