After upgrading ubuntu 15.10 AMD64 to ubuntu ubuntu 16.04 I had to boot the last kernel 4.4.0-22 because the latest one fails to boot with my Radeon graphics card. However this problem exists on the i686 ubuntu 16.04 with the latest kernel on my intel Macbook as well. The problem is that CD-R disks are not recognized, nor mounted. The disks are fine, and work on boot, but will not mount on the desktop. DVD-R, audio, DVD movies all mount fine. It is only specific to ubuntu 16.04 with CD-R disks, and seems to effect all of the kernels. Here is the output of several commands: Dmesg: [11778.815534] scsi_io_completion: 44 callbacks suppressed [11778.815548] sr 4:0:0:0: [sr0] tag#28 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [11778.815555] sr 4:0:0:0: [sr0] tag#28 Sense Key : Illegal Request [current] [11778.815564] sr 4:0:0:0: [sr0] tag#28 Add. Sense: Illegal mode for this track [11778.815570] sr 4:0:0:0: [sr0] tag#28 CDB: Read(10) 28 00 00 01 62 b8 00 00 02 00 [11778.815574] blk_update_request: 44 callbacks suppressed [11778.815577] blk_update_request: I/O error, dev sr0, sector 363232 [11778.875542] sr 4:0:0:0: [sr0] tag#29 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [11778.875553] sr 4:0:0:0: [sr0] tag#29 Sense Key : Illegal Request [current] [11778.875562] sr 4:0:0:0: [sr0] tag#29 Add. Sense: Illegal mode for this track [11778.875568] sr 4:0:0:0: [sr0] tag#29 CDB: Read(10) 28 00 00 01 62 b8 00 00 02 00 [11778.875573] blk_update_request: I/O error, dev sr0, sector 363232 [11778.875579] buffer_io_error: 44 callbacks suppressed [11778.875583] Buffer I/O error on dev sr0, logical block 45404, async page read [11830.277824] sr 4:0:0:0: [sr0] tag#25 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [11830.277831] sr 4:0:0:0: [sr0] tag#25 Sense Key : Illegal Request [current] [11830.277837] sr 4:0:0:0: [sr0] tag#25 Add. Sense: Illegal mode for this track [11830.277841] sr 4:0:0:0: [sr0] tag#25 CDB: Read(10) 28 00 00 04 b2 22 00 00 02 00 [11830.277844] blk_update_request: I/O error, dev sr0, sector 1230984 [11830.285408] sr 4:0:0:0: [sr0] tag#26 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [11830.285418] sr 4:0:0:0: [sr0] tag#26 Sense Key : Illegal Request [current] [11830.285428] sr 4:0:0:0: [sr0] tag#26 Add. Sense: Illegal mode for this track [11830.285434] sr 4:0:0:0: [sr0] tag#26 CDB: Read(10) 28 00 00 04 b2 22 00 00 01 00 [11830.285439] blk_update_request: I/O error, dev sr0, sector 1230984 [11830.285447] Buffer I/O error on dev sr0, logical block 307746, async page read [11830.293600] sr 4:0:0:0: [sr0] tag#28 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [11830.293610] sr 4:0:0:0: [sr0] tag#28 Sense Key : Illegal Request [current] [11830.293619] sr 4:0:0:0: [sr0] tag#28 Add. Sense: Illegal mode for this track [11830.293626] sr 4:0:0:0: [sr0] tag#28 CDB: Read(10) 28 00 00 04 b2 23 00 00 01 00 [11830.293630] blk_update_request: I/O error, dev sr0, sector 1230988 [11830.293637] Buffer I/O error on dev sr0, logical block 307747, async page read [11949.648596] ISO 9660 Extensions: Microsoft Joliet Level 3 [11949.710957] ISO 9660 Extensions: RRIP_1991A [12017.588415] sr 4:0:0:0: [sr0] tag#21 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [12017.588426] sr 4:0:0:0: [sr0] tag#21 Sense Key : Illegal Request [current] [12017.588434] sr 4:0:0:0: [sr0] tag#21 Add. Sense: Illegal mode for this track [12017.588442] sr 4:0:0:0: [sr0] tag#21 CDB: Read(10) 28 00 00 03 6b aa 00 00 02 00 [12017.588447] blk_update_request: I/O error, dev sr0, sector 896680 [12017.600417] sr 4:0:0:0: [sr0] tag#23 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [12017.600428] sr 4:0:0:0: [sr0] tag#23 Sense Key : Illegal Request [current] [12017.600437] sr 4:0:0:0: [sr0] tag#23 Add. Sense: Illegal mode for this track [12017.600444] sr 4:0:0:0: [sr0] tag#23 CDB: Read(10) 28 00 00 03 6b ab 00 00 01 00 [12017.600448] blk_update_request: I/O error, dev sr0, sector 896684 [12017.600455] Buffer I/O error on dev sr0, logical block 224171, async page read karl@DX4380G:~$ And lshw: karl@DX4380G:~$ sudo lshw -C disk [sudo] password for karl: *-disk description: ATA Disk product: ST1000DM003-9YN1 vendor: Seagate physical id: 0.0.0 bus info: scsi@0:0.0.0 logical name: /dev/sda version: CC4B serial: S1D44PJY size: 931GiB (1TB) capabilities: gpt-1.00 partitioned partitioned:gpt configuration: ansiversion=5 guid=7d587593-555e-4e7d-9040-7666ef407fde logicalsectorsize=512 sectorsize=4096 *-cdrom description: DVD-RAM writer product: DVDRAM GH82N vendor: HL-DT-ST physical id: 0.0.0 bus info: scsi@4:0.0.0 logical name: /dev/cdrom logical name: /dev/cdrw logical name: /dev/dvd logical name: /dev/dvdrw logical name: /dev/sr0 version: 1.00 capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram configuration: ansiversion=5 status=ready *-medium physical id: 0 logical name: /dev/cdrom karl@DX4380G:~$
I can confirm this issue (with Alpine Linux - Kernel 4.4.11-0) [ 9.698776] sr 1:0:0:0: [sr0] tag#12 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 9.698784] sr 1:0:0:0: [sr0] tag#12 Sense Key : 0x4 [current] [ 9.698788] sr 1:0:0:0: [sr0] tag#12 ASC=0x3e ASCQ=0x2 [ 9.698795] sr 1:0:0:0: [sr0] tag#12 CDB: opcode=0x28 28 00 00 00 ae 96 00 00 02 00 [ 9.698798] blk_update_request: I/O error, dev sr0, sector 178776 [ 16.221746] sr 1:0:0:0: [sr0] tag#13 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 16.221753] sr 1:0:0:0: [sr0] tag#13 Sense Key : 0x4 [current] [ 16.221758] sr 1:0:0:0: [sr0] tag#13 ASC=0x3e ASCQ=0x2 [ 16.221763] sr 1:0:0:0: [sr0] tag#13 CDB: opcode=0x28 28 00 00 00 ae 96 00 00 02 00 [ 16.221766] blk_update_request: I/O error, dev sr0, sector 178776 [ 16.221770] Buffer I/O error on dev sr0, logical block 22347, async page read [ 19.491207] random: nonblocking pool is initialized [ 26.327844] sr 1:0:0:0: [sr0] tag#12 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 26.327852] sr 1:0:0:0: [sr0] tag#12 Sense Key : 0x4 [current] [ 26.327856] sr 1:0:0:0: [sr0] tag#12 ASC=0x3e ASCQ=0x2 [ 26.327863] sr 1:0:0:0: [sr0] tag#12 CDB: opcode=0x28 28 00 00 00 ae 96 00 00 02 00 [ 26.327867] blk_update_request: I/O error, dev sr0, sector 178776 [ 32.870851] sr 1:0:0:0: [sr0] tag#13 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 32.870858] sr 1:0:0:0: [sr0] tag#13 Sense Key : 0x4 [current] [ 32.870863] sr 1:0:0:0: [sr0] tag#13 ASC=0x3e ASCQ=0x2 [ 32.870868] sr 1:0:0:0: [sr0] tag#13 CDB: opcode=0x28 28 00 00 00 ae 96 00 00 02 00 [ 32.870871] blk_update_request: I/O error, dev sr0, sector 178776 [ 32.870876] Buffer I/O error on dev sr0, logical block 22347, async page read
After looking for more information, I found this comment on a forum. ==================== Hi, this must be a new bug with Linux kernel or udev. A significant difference between CD TAO and CD SAO at read time is that a TAO track ends by two non-data sectors, which cannot be read by normal SCSI READ commands. This can happen only with CD media. Not with DVD or USB sticks. In the times of kernel 2.X, the situation in the Linux kernel was quite bad: I/O error somewhere beginning 128 blocks before the track end. With kernel 3.X it improved. The I/O error reliably hits 2 blocks before track end on 3.16. I did not try 4.X with real iron yet. My best guess would be that this confuses the entity among the ISO payload, which is in charge for creating /dev/disk/by-label/ links while the system boots up. (If somebody can explain the factor 8 between "sector 1226752" and "logical block 153344", then please do.) Obviously the problem is still in archlinux-2016.02.01-dual.iso ==================== https://bbs.archlinux.org/viewtopic.php?pid=1605434#p1605434 After testing his theory and burning the ISO to a DVD instead of a CD, it worked! Does this shed any light to the problem?