Floppy access by dd fails for 2.6.26-rc2 to final, possibly even earlier - Kernel

This is a discussion on Floppy access by dd fails for 2.6.26-rc2 to final, possibly even earlier - Kernel ; Greetings; I just been advised by private email that I an not the only one who has lost the use of his floppy drive via dd. The corresponder noted that he had a copy of DSL with a 2.4.something kernel, ...

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Thread: Floppy access by dd fails for 2.6.26-rc2 to final, possibly even earlier

  1. Floppy access by dd fails for 2.6.26-rc2 to final, possibly even earlier

    Greetings;

    I just been advised by private email that I an not the only one who has lost the
    use of his floppy drive via dd. The corresponder noted that he had a copy of
    DSL with a 2.4.something kernel, and his drive worked flawlessly while booted
    to DSL.

    So now there are at least 2 floppy users wandering in the wilderness looking for
    water. We need it to support 20 year old computers without a TCP stack or
    network cards.

    Who is the floppy.c maintainer these days?

    --
    Cheers, Gene
    "There are four boxes to be used in defense of liberty:
    soap, ballot, jury, and ammo. Please use in that order."
    -Ed Howdershelt (Author)
    For fools rush in where angels fear to tread.
    -- Alexander Pope
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  2. Re: Floppy access by dd fails for 2.6.26-rc2 to final, possibly even earlier

    Gene Heskett wrote:
    > I just been advised by private email that I an not the only one who has lost the
    > use of his floppy drive via dd. The corresponder noted that he had a copy of
    > DSL with a 2.4.something kernel, and his drive worked flawlessly while booted
    > to DSL.
    >
    > So now there are at least 2 floppy users wandering in the wilderness looking for
    > water. We need it to support 20 year old computers without a TCP stack or
    > network cards.


    I guess I'll chime in. I'm not sure this is the same problem or not, but my
    Alpha AS1000a (EV56 5/400) has never successfully been able to read the
    floppy. I always get garbage. The drive does work as I can use the RCU
    from floppy from the Arc BIOS.

    Linux sees this device as a 2.88mb floppy. It is a 1.44mb and the
    information in the Arc BIOS is set to 1.44mb (I don't think it matters, I
    boot from SRM, not sure how to set the floppy there)

    I also do not see any errors or other useful messages in the logs.

    Jun 1 15:23:06 narf kernel: [4262383.309846] Floppy drive(s): fd0 is 2.88M
    Jun 1 15:23:06 narf kernel: [4262383.324494] FDC 0 is a National Semiconductor PC87306

    I tried forcing to use a specific type:
    Jun 1 16:21:38 narf kernel: [4194206.301784] floppy0: setting CMOS code to 4
    Jun 1 16:21:38 narf kernel: [4194206.301784] Floppy drive(s): fd0 is 1.44M
    Jun 1 16:21:38 narf kernel: [4194206.314479] FDC 0 is a National Semiconductor PC87306

    But that failed even worse with errors on sector 0. (NOTE the floppy was
    good)

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  3. Re: Floppy access by dd fails for 2.6.26-rc2 to final, possibly even earlier

    On Tuesday 22 July 2008, Wakko Warner wrote:
    >Gene Heskett wrote:
    >> I just been advised by private email that I an not the only one who has
    >> lost the use of his floppy drive via dd. The corresponder noted that he
    >> had a copy of DSL with a 2.4.something kernel, and his drive worked
    >> flawlessly while booted to DSL.
    >>
    >> So now there are at least 2 floppy users wandering in the wilderness
    >> looking for water. We need it to support 20 year old computers without a
    >> TCP stack or network cards.

    >
    >I guess I'll chime in. I'm not sure this is the same problem or not, but my
    >Alpha AS1000a (EV56 5/400) has never successfully been able to read the
    >floppy. I always get garbage. The drive does work as I can use the RCU
    >from floppy from the Arc BIOS.
    >
    >Linux sees this device as a 2.88mb floppy. It is a 1.44mb and the
    >information in the Arc BIOS is set to 1.44mb (I don't think it matters, I
    >boot from SRM, not sure how to set the floppy there)
    >
    >I also do not see any errors or other useful messages in the logs.
    >

    Neither do I. It registers as
    Jul 20 22:56:59 coyote kernel: [ 16.297661] Floppy drive(s): fd0 is 1.44M
    Jul 20 22:56:59 coyote kernel: [ 16.312758] FDC 0 is a post-1991 82077


    >Jun 1 15:23:06 narf kernel: [4262383.309846] Floppy drive(s): fd0 is 2.88M
    >Jun 1 15:23:06 narf kernel: [4262383.324494] FDC 0 is a National
    > Semiconductor PC87306
    >
    >I tried forcing to use a specific type:
    >Jun 1 16:21:38 narf kernel: [4194206.301784] floppy0: setting CMOS code to
    > 4 Jun 1 16:21:38 narf kernel: [4194206.301784] Floppy drive(s): fd0 is
    > 1.44M Jun 1 16:21:38 narf kernel: [4194206.314479] FDC 0 is a National
    > Semiconductor PC87306
    >
    >But that failed even worse with errors on sector 0. (NOTE the floppy was
    >good)


    Glad to know I'm not the only one, there are 3 of us now.

    Thanks Wakko.

    --
    Cheers, Gene
    "There are four boxes to be used in defense of liberty:
    soap, ballot, jury, and ammo. Please use in that order."
    -Ed Howdershelt (Author)
    Absence makes the heart grow fonder.
    -- Sextus Aurelius
    --
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  4. Re: Floppy access by dd fails for 2.6.26-rc2 to final, possibly even earlier

    On 23-07-08 02:46, Gene Heskett wrote:

    > On Tuesday 22 July 2008, Wakko Warner wrote:
    >> Gene Heskett wrote:
    >>> I just been advised by private email that I an not the only one who has
    >>> lost the use of his floppy drive via dd. The corresponder noted that he
    >>> had a copy of DSL with a 2.4.something kernel, and his drive worked
    >>> flawlessly while booted to DSL.
    >>>
    >>> So now there are at least 2 floppy users wandering in the wilderness
    >>> looking for water. We need it to support 20 year old computers without a
    >>> TCP stack or network cards.

    >> I guess I'll chime in. I'm not sure this is the same problem or not, but my
    >> Alpha AS1000a (EV56 5/400) has never successfully been able to read the
    >> floppy. I always get garbage. The drive does work as I can use the RCU
    >>from floppy from the Arc BIOS.
    >> Linux sees this device as a 2.88mb floppy. It is a 1.44mb and the
    >> information in the Arc BIOS is set to 1.44mb (I don't think it matters, I
    >> boot from SRM, not sure how to set the floppy there)
    >>
    >> I also do not see any errors or other useful messages in the logs.
    >>

    > Neither do I. It registers as
    > Jul 20 22:56:59 coyote kernel: [ 16.297661] Floppy drive(s): fd0 is 1.44M
    > Jul 20 22:56:59 coyote kernel: [ 16.312758] FDC 0 is a post-1991 82077
    >
    >
    >> Jun 1 15:23:06 narf kernel: [4262383.309846] Floppy drive(s): fd0 is 2.88M
    >> Jun 1 15:23:06 narf kernel: [4262383.324494] FDC 0 is a National
    >> Semiconductor PC87306
    >>
    >> I tried forcing to use a specific type:
    >> Jun 1 16:21:38 narf kernel: [4194206.301784] floppy0: setting CMOS code to
    >> 4 Jun 1 16:21:38 narf kernel: [4194206.301784] Floppy drive(s): fd0 is
    >> 1.44M Jun 1 16:21:38 narf kernel: [4194206.314479] FDC 0 is a National
    >> Semiconductor PC87306
    >>
    >> But that failed even worse with errors on sector 0. (NOTE the floppy was
    >> good)

    >
    > Glad to know I'm not the only one, there are 3 of us now.


    Am not reproducing on 2.6.26, so it's at least not just everyone. Normal
    floppy works fine here:

    root@7ixe4:~# mkfs.minix /dev/fd0
    480 inodes
    1440 blocks
    Firstdatazone=19 (19)
    Zonesize=1024
    Maxsize=268966912

    root@7ixe4:~# mount /dev/fd0 /mnt/floppy
    root@7ixe4:~# echo BAR >/mnt/floppy/FOO
    root@7ixe4:~# umount /mnt/floppy
    root@7ixe4:~# dd if=/dev/fd0 of=floppy.img
    2880+0 records in
    2880+0 records out
    1474560 bytes (1.5 MB) copied, 48.1893 s, 30.6 kB/s
    root@7ixe4:~# mount -o loop floppy.img /mnt/floppy
    root@7ixe4:~# cat /mnt/floppy/FOO
    BAR
    root@7ixe4:~# umount /mnt/floppy
    root@7ixe4:~# dd if=floppy.img of=/dev/fd0
    2880+0 records in
    2880+0 records out
    1474560 bytes (1.5 MB) copied, 99.3359 s, 14.8 kB/s
    root@7ixe4:~# mount /dev/fd0 /mnt/floppy
    root@7ixe4:~# cat /mnt/floppy/FOO
    BAR

    Rene.
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  5. Re: Floppy access by dd fails for 2.6.26-rc2 to final, possibly even earlier

    On Wed, 23 Jul 2008 13:17:58 +0200, Rene Herman wrote:

    >On 23-07-08 02:46, Gene Heskett wrote:
    >
    >> On Tuesday 22 July 2008, Wakko Warner wrote:
    >>> Gene Heskett wrote:
    >>>> I just been advised by private email that I an not the only one who has
    >>>> lost the use of his floppy drive via dd. The corresponder noted that he
    >>>> had a copy of DSL with a 2.4.something kernel, and his drive worked
    >>>> flawlessly while booted to DSL.
    >>>>
    >>>> So now there are at least 2 floppy users wandering in the wilderness
    >>>> looking for water. We need it to support 20 year old computers without a
    >>>> TCP stack or network cards.
    >>> I guess I'll chime in. I'm not sure this is the same problem or not, but my
    >>> Alpha AS1000a (EV56 5/400) has never successfully been able to read the
    >>> floppy. I always get garbage. The drive does work as I can use the RCU
    >>>from floppy from the Arc BIOS.
    >>> Linux sees this device as a 2.88mb floppy. It is a 1.44mb and the
    >>> information in the Arc BIOS is set to 1.44mb (I don't think it matters, I
    >>> boot from SRM, not sure how to set the floppy there)
    >>>
    >>> I also do not see any errors or other useful messages in the logs.
    >>>

    >> Neither do I. It registers as
    >> Jul 20 22:56:59 coyote kernel: [ 16.297661] Floppy drive(s): fd0 is 1.44M
    >> Jul 20 22:56:59 coyote kernel: [ 16.312758] FDC 0 is a post-1991 82077
    >>
    >>
    >>> Jun 1 15:23:06 narf kernel: [4262383.309846] Floppy drive(s): fd0 is 2.88M
    >>> Jun 1 15:23:06 narf kernel: [4262383.324494] FDC 0 is a National
    >>> Semiconductor PC87306
    >>>
    >>> I tried forcing to use a specific type:
    >>> Jun 1 16:21:38 narf kernel: [4194206.301784] floppy0: setting CMOS code to
    >>> 4 Jun 1 16:21:38 narf kernel: [4194206.301784] Floppy drive(s): fd0 is
    >>> 1.44M Jun 1 16:21:38 narf kernel: [4194206.314479] FDC 0 is a National
    >>> Semiconductor PC87306
    >>>
    >>> But that failed even worse with errors on sector 0. (NOTE the floppy was
    >>> good)

    >>
    >> Glad to know I'm not the only one, there are 3 of us now.

    >
    >Am not reproducing on 2.6.26, so it's at least not just everyone. Normal
    >floppy works fine here:
    >
    >root@7ixe4:~# mkfs.minix /dev/fd0
    >480 inodes
    >1440 blocks
    >Firstdatazone=19 (19)
    >Zonesize=1024
    >Maxsize=268966912
    >
    >root@7ixe4:~# mount /dev/fd0 /mnt/floppy
    >root@7ixe4:~# echo BAR >/mnt/floppy/FOO
    >root@7ixe4:~# umount /mnt/floppy
    >root@7ixe4:~# dd if=/dev/fd0 of=floppy.img
    >2880+0 records in
    >2880+0 records out
    >1474560 bytes (1.5 MB) copied, 48.1893 s, 30.6 kB/s
    >root@7ixe4:~# mount -o loop floppy.img /mnt/floppy
    >root@7ixe4:~# cat /mnt/floppy/FOO
    >BAR
    >root@7ixe4:~# umount /mnt/floppy
    >root@7ixe4:~# dd if=floppy.img of=/dev/fd0
    >2880+0 records in
    >2880+0 records out
    >1474560 bytes (1.5 MB) copied, 99.3359 s, 14.8 kB/s
    >root@7ixe4:~# mount /dev/fd0 /mnt/floppy
    >root@7ixe4:~# cat /mnt/floppy/FOO
    >BAR


    Works here for ext2 and msdos, but I'm running on the linux box used to test.

    Grant.
    >
    >Rene.


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