Re: kernels v2.6.x vs. /dev/nst0 ???

[David Goodenough <david.goodenough@btconnect.com>]

On Monday 08 March 2004 18:57, Michael D Schleif wrote:
> * Alexis Huxley <ahuxley@gmx.net> [2004:03:08:15:06:04+0000] scribed:
> > > Regardless of kernel, I see this:
> > >
> > >    # cat /proc/scsi/scsi
> > >    Attached devices:=20
> > >    Host: scsi0 Channel: 00 Id: 05 Lun: 00
> > >      Vendor: HP       Model: C1537A           Rev: L812
> > >      Type:   Sequential-Access                ANSI SCSI revision: 02
> > >    . . .
> >
> > Just because the device is visible on the SCSI bus, does not mean
> > that the kernel knows how to operate it. My guess is that the
> > new kernel does not have 'st' module compile in or available as
> > a module which has been loaded.
> >
> > Run:
> >
> > 	grep _ST=  /boot/config-*
> >
> > to see if how the tape driver is compiled (y=in kernel, m=module, n=not
> > compiled at all).
> >
> > If you see 'y' it should work, I hope you don't see that! :-)
> >
> > If 'm' then have you loaded the module? Try 'lsmod'. Do you see it
> > listed?)
> >
> > If 'n' then you need to make a new kernel from sources.
>
> I will have to boot back into 2.6.3 later today.
>
> I am using the stock Debian kernel:
>
>    kernel-image-2.6.3-1-686
>
> From config-2.6.3-1-686:
>
>    #
>    # SCSI device support
>    #
>    CONFIG_SCSI=m
>    CONFIG_SCSI_PROC_FS=y
>
>    #
>    # SCSI support type (disk, tape, CD-ROM)
>    #
>    CONFIG_BLK_DEV_SD=m
>    CONFIG_CHR_DEV_ST=m

As ST is a module, have you tried loading the module explicitly.  There have
been one of two cases where modules got autoloaded in 2.4 and are not in
2.6.

David
>    CONFIG_CHR_DEV_OSST=m
>    CONFIG_BLK_DEV_SR=m
>    # CONFIG_BLK_DEV_SR_VENDOR is not set
>    CONFIG_CHR_DEV_SG=m
>
>    #
>    # Some SCSI devices (e.g. CD jukebox) support multiple LUNs
>    #
>    CONFIG_SCSI_MULTI_LUN=y
>    # CONFIG_SCSI_REPORT_LUNS is not set
>    CONFIG_SCSI_CONSTANTS=y
>    CONFIG_SCSI_LOGGING=y
>
> From config-2.4.25-1-686:
>
>    #
>    # SCSI support type (disk, tape, CD-ROM)
>    #
>    CONFIG_BLK_DEV_SD=m
>    CONFIG_SD_EXTRA_DEVS=40
>    CONFIG_CHR_DEV_ST=m
>    CONFIG_CHR_DEV_OSST=m
>    CONFIG_BLK_DEV_SR=m
>    # CONFIG_BLK_DEV_SR_VENDOR is not set
>    CONFIG_SR_EXTRA_DEVS=2
>    CONFIG_CHR_DEV_SCH=m
>    CONFIG_CHR_DEV_SG=m
>
>    #
>    # Some SCSI devices (e.g. CD jukebox) support multiple LUNs
>    #
>    # CONFIG_SCSI_DEBUG_QUEUES is not set
>    CONFIG_SCSI_MULTI_LUN=y
>    CONFIG_SCSI_CONSTANTS=y
>    CONFIG_SCSI_LOGGING=y
>
> What am I missing?