On Fri, 6 Jul 2007, Gene Heskett wrote: > >> And down in the lower portion of that list is: > >> scsi_mod 137549 5 usb_storage, sr_mod, sg, libata, sd_mod > >> > >> So there's a bunch of stuff on the FC5 box that's missing on the FC6 box. > >> Starting with libata and sr_mod. Go look at my .config again I guess. > > > >Libata is important for SATA. It may be built into your FC6 kernel > >instead being a separate module. sr_mod is the SCSI CD/DVD driver; you > >don't need it if you're not using a CD or DVD drive. > > I'm running 2 6 22-rc7-cfs-v18 on the FC6 box. And I cannot find any > references to a libata in a make xconfig. > > Also, if I 'locate libata' and filter to this kernel: > > /usr/src/linux-2.6.22-rc7-cfs-v18/Documentation/DocBook/libata.tmpl > /usr/src/linux-2.6.22-rc7-cfs-v18/drivers/ata/libata-acpi.c > /usr/src/linux-2.6.22-rc7-cfs-v18/drivers/ata/libata-core.c > /usr/src/linux-2.6.22-rc7-cfs-v18/drivers/ata/libata-eh.c > /usr/src/linux-2.6.22-rc7-cfs-v18/drivers/ata/libata-scsi.c > /usr/src/linux-2.6.22-rc7-cfs-v18/drivers/ata/libata-sff.c > /usr/src/linux-2.6.22-rc7-cfs-v18/drivers/ata/libata.h > /usr/src/linux-2.6.22-rc7-cfs-v18/include/asm-generic/libata-portmap.h > /usr/src/linux-2.6.22-rc7-cfs-v18/include/asm-ia64/libata-portmap.h > /usr/src/linux-2.6.22-rc7-cfs-v18/include/asm-powerpc/libata-portmap.h > /usr/src/linux-2.6.22-rc7-cfs-v18/include/linux/libata.h > > That doesn't look as if its being built. It is present in the lib/modules > path for the distribution kernels though: > > /lib/modules/2.6.20-1.2948.fc6/kernel/drivers/ata/libata.ko > /lib/modules/2.6.20-1.2952.fc6/kernel/drivers/ata/libata.ko > /lib/modules/2.6.20-1.2962.fc6/kernel/drivers/ata/libata.ko
All right, so the libata module is in some of your kernels and not others. I doubt that it has anything to do with your USB hard drive not working. usb-storage does not interact with libata. > However when booted to 2.6.20-1.2962, that part still doesn't work. > > If this device is plugged into the lappy at powerup time the bios scan finds > it and the post continues unaffected. > > If this device is plugged into ANY usb port, root or hub, this box won't even > post till it is unplugged, at which point the post continues normally. > > That points to a bios difference also. Unforch, biostars web pages are under > reconstruction so I can't check for bios updates there. I've emailed the > webmaster, but no reply as yet. Actually it points to a hardware problem, such as insufficient power. The BIOS symptoms suggest that the BIOS driver is unable to deal with the malfunctioning drive just as the Linux driver is. Alan Stern ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
