Re: PROBLEM: Linux ATAPI CDROM ->FIX: SAMSUNG CD-ROM SC-140

[Grant Coady <grant_lkml@dodo.com.au>]

On Sun, 01 Jan 2006 22:34:55 +0000, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:

>On Llu, 2006-01-02 at 09:23 +1100, Grant Coady wrote:
>> Jan  2 09:02:33 niner kernel: hdc: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
>> Jan  2 09:02:33 niner kernel: hdc: drive_cmd: error=0x04Aborted Command
>> Jan  2 09:02:52 niner kernel: hdc: CHECK for good STATUS
>> Jan  2 09:03:26 niner kernel: hdc: media error (bad sector): status=0x51 { DriveReady SeekComplete Error }
>
>Thats showing a media error. Shouldn't have caused a hang however.
>
Solved (sort of):
login as: root
Authenticating with public key "grant@peetoo" from agent
Last login: Mon Jan  2 10:10:08 2006 from magpie.squishybuglet.mine.nu
Linux 2.4.33-pre1.

The grass is always greener on the other side of your sunglasses.

root@niner:~# dmesg |grep hdc
    ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:DMA, hdd:pio
hdc: LTN526D, ATAPI CD/DVD-ROM drive
hdc: attached ide-cdrom driver.
hdc: ATAPI 52X CD-ROM drive, 120kB Cache, UDMA(33)
root@niner:~# mount /dev/hdc /mnt/cdrom/
mount: block device /dev/hdc is write-protected, mounting read-only
root@niner:~# ls /mnt/cdrom/
CHECKSUMS.md5  CHECKSUMS.md5.asc  FILELIST.TXT  README.TXT  pasture/  source/  zipslack/
root@niner:~# hdparm -I /dev/hdc

/dev/hdc:

ATAPI CD-ROM, with removable media
        Model Number:       LTN526D
        Serial Number:
        Firmware Revision:  9S01
Standards:
        Used: ATAPI for CD-ROMs, SFF-8020i, r2.5
        Supported: CD-ROM ATAPI-1
Configuration:
        DRQ response: 50us.
        Packet size: 12 bytes
Capabilities:
        LBA, IORDY(can be disabled)
        DMA: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2 udma0 udma1 *udma2
             Cycle time: min=120ns recommended=120ns
        PIO: pio0 pio1 pio2 pio3 pio4
             Cycle time: no flow control=120ns  IORDY flow control=120ns

That's the same (stamped) CD I used before with the Samsung, maybe I 
can use the Samsung for error testing libata PATA when it gets here ;)

Cheers,
Grant.
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