Re: [PARPORT] Couldn't get old ppa driver working with ZIP-100

From: Robert Heller (heller@deepsoft.com)
Date: Tue Jun 17 2003 - 08:43:22 EDT

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      =?iso-8859-1?q?Chan=20Siu=20Ming?= <namely_void@yahoo.co.uk>,
      In a message on Tue, 17 Jun 2003 10:04:41 +0100 (BST), wrote :

    => Hello,
    => I've wrestled with a ZIP-100 (manuf. '97) parallel
    => drive for some time now and just cannot get it to
    => work. The drive should be supported by the ppa driver
    => I suppose(?).
    => The ppa driver loads fine, but fails when I try to
    => mount a disk. I tried iomega's guest.exe in MS-DOS and
    => it works well. Here's some messages I get:
    =>
    => parport0: PC-style at 0x378 [PCSPP,TRISTATE,EPP]
    => parport_pc: Via 686A parallel port: io=0x378
    => ppa: Version 2.07 (for Linux 2.4.x)
    => ppa: Found device at ID 6, Attempting to use EPP 16
    => bit
    => ppa: Communication established with ID 6 using EPP 16
    => bit
    => scsi1 : Iomega VPI0 (ppa) interface
    => Vendor: IOMEGA Model: ZIP 100 Rev: J.03
    => Type: Direct-Access ANSI SCSI
    => revision: 02
    =>
    => That's the driver loading, obviously. Then, when I try
    => to mount a disk:
    =>
    => # mount /dev/sda4 /zipdisk -t vfat
    => Attached scsi removable disk sda at scsi1, channel 0,
    => id 6, lun 0
    => scsi: device set offline - not ready or command retry
    => failed after bus reset: host 1 channel 0 id 6 lun 0
    => SCSI device sda: 196608 512-byte hdwr sectors (101 MB)
    => sda: Write Protect is off
    => sda: I/O error: dev 08:00, sector 0
    => I/O error: dev 08:00, sector 0
    => unable to read partition table
    =>
    => And after that /dev/sda isn't, of course, usable
    => anymore. (Btw. how do I enable offline SCSI devices
    => again?)

    Probably by rmmod'ing the driver module and re-insmod'ing it. And/or
    power cycling the drive. Oh, do you have the lp deamon running (lpd)?

    =>
    => I'm using a 2.4.21-rc7-ac1 kernel. In addition to the
    => EPP-16 mode shown, I also tried EPP32 and PS2 modes
    => with the same results (mount failing). So, is there
    => anything else I could try? Might this be an -ac1
    => kernel-bug?

    Are you:

    1) Sure the disk in the drive is in fact good?

    2) Sure it has a valid partition table?

    3) Sure that partition 4 is in fact a FAT file system?

    Instead of trying to mount it right off, do:

    /sbin/fdisk -l /dev/sda

    =>
    => -- chan
    =>
    =>
    =>
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