linux-kernel - Re: 2.6.20-rc6 libata PATA ATAPI CDROM is not working

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Message-ID: <45D201D6.4050908@gmail.com>
Date:	Tue, 13 Feb 2007 10:22:14 -0800
From:	Tejun Heo <htejun@...il.com>
To:	Joel Soete <soete.joel@...rlet.be>
CC:	Luming Yu <luming.yu@...il.com>, Alan Cox <alan@...hat.com>,
	Ioan Ionita <opslynx@...il.com>,
	Alan <alan@...rguk.ukuu.org.uk>, linux-kernel@...r.kernel.org,
	jgarzik@...ox.com
Subject: Re: 2.6.20-rc6 libata PATA ATAPI CDROM is not working

Hello, Joel.

Joel Soete wrote:
> A small update:
> your patch also works against 2.6.20

Glad to hear that.

> but seems that open the door to numerous other pb:
> 1/ pb to burn cd:
> # md5sum cd060213.iso
> 6a1248783a21722816b972aa9bae9d5e  cd060213.iso
> 
> # ll cd060213.iso
> -rwxr-xr-x 1 root root 3213312 Feb 13  2006 cd060213.iso
> 
> # dd if=/dev/sr0 bs=1 count=3213312 | md5sum
> dd: reading `/dev/sr0': Input/output error
> 0337e9846d17779945c5c252d4f897f0  -
> 3129344+0 records in
> 3129344+0 records out
> 3129344 bytes (3.1 MB) copied, 36.6963 seconds, 85.3 kB/s
> 
> eventhought cdrecord seems to be successfull???

Hmm... 82K difference.  Can you burn an iso and md5sum the files 
contained in the image and burned cd?

> 2/ (but that should be much more related to scsi api) sdcXX > sdc15 
> doesn't works ;-(
> # sfdisk -l /dev/sdc
> 
> Disk /dev/sdc: 1826 cylinders, 255 heads, 63 sectors/track
> Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
> 
>    Device Boot Start     End   #cyls    #blocks   Id  System
> /dev/sdc1   *      0+    195     196-   1574338+   b  W95 FAT32
> /dev/sdc2        196    1825    1630   13092975    5  Extended
> /dev/sdc3          0       -       0          0    0  Empty
> /dev/sdc4          0       -       0          0    0  Empty
> /dev/sdc5   *    196+    197       2-     16033+  83  Linux
> /dev/sdc6   *    198+    199       2-     16033+  83  Linux
> /dev/sdc7        200+    201       2-     16033+  83  Linux
> /dev/sdc8        202+    217      16-    128488+  82  Linux swap / Solaris
> /dev/sdc9        218+    478     261-   2096451   83  Linux
> /dev/sdc10       479+    486       8-     64228+  83  Linux
> /dev/sdc11       487+    488       2-     16033+  83  Linux
> /dev/sdc12       489+    504      16-    128488+  83  Linux
> /dev/sdc13       505+    618     114-    915673+  83  Linux
> /dev/sdc14       619+    620       2-     16033+  83  Linux
> /dev/sdc15       621+    636      16-    128488+  83  Linux
> /dev/sdc16       637+    644       8-     64228+  83  Linux
> /dev/sdc17       645+    646       2-     16033+  83  Linux
> /dev/sdc18       647+    654       8-     64228+  83  Linux
> /dev/sdc19       655+    656       2-     16033+  83  Linux
> /dev/sdc20       657+    773     117-    939771   83  Linux
> /dev/sdc21       774+    789      16-    128488+  83  Linux
> /dev/sdc22       790+    880      91-    730926   83  Linux
> /dev/sdc23       881+   1533     653-   5245191   83  Linux
> /dev/sdc24      1795    1825      31     249007+  83  Linux

Whee, you have 24 partitions?  Due to the way SCSI block device numbers 
are laid out, SCSI supports only upto 15 partitions per device.

-- 
tejun
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