Re: 2.4/2.6 - ATAPI Zip problem in SCSI mode (DEVFS)

From: Ali Akcaagac (aliakc_at_web.de)
Date: 08/31/03

  • Next message: Alan Cox: "Re: IDE DMA breakage w/ 2.4.21+ and 2.6.0-test4(-mm4)" 
    To: Andrey Borzenkov <arvidjaar@mail.ru>
Date:	Sun, 31 Aug 2003 19:55:58 +0200

    On Sun, 2003-08-31 at 19:17, Andrey Borzenkov wrote:
    > > For 2.5 this doesn't work anymore and whenever you want to mount a Zip
    > > disk you need to boot Linux together with a Disk inside the Drive, so
    > > during boot it detects the Zip drive + the Disk.
    >
    > yes devfs was castrated in 2.6 and removable media revalidation has been
    > removed without providing any suitable replacement.

    Ahh, thanks for letting me know this.

    But this leads to the question why CD-ROM removable media revalidation
    works. I mean let's see an SCSI CD-ROM, an ATAPI CD-ROM (in SCSI mode)
    and ATAPI Zip (in SCSI mode) as *the same*.

    They all have a host device (the mechanics itself), they all talk
    through the same interface (straight SCSI or SCSI emulation). But CD-ROM
    removable media revalidation works. E.g. I plug a CD in and it does the
    trick, the Zip should be alike in my opinion. How does a Zip as
    removable media differ from a CD for example.

    By the way it would be pretty nice to improve devfs in this case. I also
    heard a while back that it will be re-written anyways. Would be cool to
    have a native support for that (Kernel related solution).

    greetings,

    A. A.

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

  • Next message: Alan Cox: "Re: IDE DMA breakage w/ 2.4.21+ and 2.6.0-test4(-mm4)"

    Relevant Pages

    • Re: Difficulties with 6886-4CH (IBM PC 750 MCA/PCI)
      ... SCSI is ... PCI SCSI adapter ... CD-ROM, 32x or so on the secondary IDE chain. ... The IDE CD-ROM light up its green ...
      (comp.sys.ibm.ps2.hardware)
    • Re: adding an external cdrom sun fire 220
      ... built-in SCSI, the following should work. ... the CD-Rom drive to the SCSI port on the rear of your machine using the ... correct lead (probably one with "micro-D" connectors on each end) and ... a single port on the computer through what is known as "daisy chaining": ...
      (comp.unix.solaris)
    • Re: Devfs and many scsi devices
      ... which patches did finally made it into the main kernel ... there have always been some changes to the SCSI ... Could anybody answer the real question which pertains to devfs. ... having those many devices either the SCSI mid-level driver of the sg ...
      (comp.os.linux.misc)
    • Re: MAKEDEV and CentOS -- cdrecord.
      ... >> I am having trouble running cdrecord on CentOS 4.2. ... >> this has worked perfectly well with Red Hat Linux 7.3 and Red Hat Linux ... How is it going to do that when the cd-rom burner _really is a scsi device_, ...
      (comp.os.linux.setup)
    • Re: Installation help needed
      ... With two hard disks plugged in, and a CD-ROM drive ... then your SCSI ... SCSI drives. ... If you have both CPUs present, ...
      (comp.unix.bsd.freebsd.misc)