On Tue, 11 Jan 2000, James Bourne wrote:
> Hi,
> I have an ATAPI 36X CDROM:
Hi again,
I have found the problem I was having with the ATAPI CDROM. In Andres' last
ide patch (ide.2.2.14.20000108.patch), the function get_info_ptr was changed
in ide.c to including checking the number of sectors for the particular
partition being mounted
line ~1620
-if(drive->present)
+if ((drive->present) && (drive->part[minor].nr_sects))
Resulting in:
cafe:bash$ mount /cdrom
mount: /dev/hdc is not a valid block device (mount syscall returned -ENXIO)
cafe:bash$ dmesg | tail -3
get_info_ptr: ide.c; major (22) minor (0)
get_info_ptr: ide.c; drive->part[0].nr_sects == 0
ide_open: ide.c; get_info_ptr returned NULL for 5632
The drive->part[minor].nr_sects is 0 for the cdrom as the drivers are built
as a module. Reverting this change fixes the problem...
Here's the patch
--- linux/drivers/block/ide.c.orig Wed Jan 12 11:06:56 2000
+++ linux/drivers/block/ide.c Wed Jan 12 11:34:10 2000
@@ -1617,7 +1617,8 @@
unsigned unit = DEVICE_NR(i_rdev);
if (unit < MAX_DRIVES) {
ide_drive_t *drive = &hwif->drives[unit];
- if ((drive->present) && (drive->part[minor].nr_sects))
+/* if ((drive->present) && (drive->part[minor].nr_sects)) */
+ if(drive->present)
return drive;
}
break;
Regards,
Jim
-- James Bourne | Email: jbourne@affinity-systems.ab.ca Affinity Systems Inc. | WWW: http://www.affinity-systems.ab.ca Everything Linux | Linux: The choice of a GNU generation ---------------------------------------------------------------------- Unix System Administration, System programming, Network Administration- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
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