[FUGSPBR] Inst. 4.6 CDROM

[Jean M. Duarte]

Ola Bom Dia a todos,

Obrigado pela dica, acabei de conseguir instalar o Diabinho !!!

A Solucao esta abaixo:
Copiado de http://www.freebsd.org/releases/4.6R/errata.html
Some FreeBSD/i386 users have experienced difficulties reading from certain
ATA CDROM drives. Specific models on which this problem has been observed
include the AOpen 48x, 52x, and 56x CDROM drives, as well as the Mitsumi
Slim CRMC-SR242S CDROM drive. A typical symptom is the following error
message on the console and/or dmesg(8) buffer (sometimes accompanied by a
kernel panic):

    acd0: READ_BIG command timeout - resetting
    ata1: resetting devices .. done

In some cases, this bug can prevent installation of FreeBSD from an affected
CDROM drive. It can cause sysinstall(8) to hang while extracting
distribution files from CD media.

A two-part workaround listed here has shown to be helpful in some (but not
necessarily all) cases. First, to allow a CDROM installation, it is
necessary to modify the normal CDROM installation procedure:

  1.. Start the computer with a FreeBSD installation CDROM in the drive.

  2.. Wait for a console message similar to:

    Hit [Enter] to boot immediately, or any other key for command prompt.
    Booting [kernel] in 9 seconds...

  3.. Immediately interrupt the boot process by pressing the Space bar on
the keyboard.

  4.. Enter the following three lines at the ok prompt:

    ok set hw.ata.ata_dma="1"

    ok set hw.ata.atapi_dma="1"

    ok boot

  5.. Continue the installation as normal.

The second part of the workaround takes place after completing the CDROM
installation (or a successful source upgrade). It consists of configuring
the ata(4) driver so that future CDROM reads work correctly:

  1.. Add the following two lines to /boot/loader.conf (creating this file
if it does not already exist):

    hw.ata.ata_dma="1"
    hw.ata.atapi_dma="1"

  2.. Reboot the machine.



----- Original Message -----
From: "Alexandre Mioranza" <alexandre.mioranza em varig.com>
To: "Lista FUGSPBR" <fugspbr em fugspbr.org>
Sent: Friday, June 21, 2002 10:49 AM
Subject: [FUGSPBR] Inst. 4.6 CDROM


> Aí pessoal,
>
>  Para aqueles que estão tendo problemas com a instalação do FreeBSD
release 4.6 a partir do CD-ROM, problema do READ_BIG command timeout, na
página do freebsd tem na errata da release as informações de como proceder
para conseguir efetuar a instalação do free com o cdrom, ainda não testei
mas acho que deve funcionar, o pessoal do core team está estudando o caso,
ele ainda não tem uma solução definitiva.
>
> _________________________________________
>           __      ___ ___
>         /'__`\  /' __` __`\
>        /\ \_\.\_/\ \/\ \/\ \
>        \ \__/.\_\ \_\ \_\ \_\
>         \/__/\/_/\/_/\/_/\/_/
>
>           Alexandre Mioranza
>   VEM -  VARIG Engenharia & Manutenção
>            Sistemas e Métodos
>  email: alexandre.mioranza em varig.com.br
> _________________________________________
> ______________________________________________
> http://www2.fugspbr.org/mailman/listinfo/fugspbr
>
>

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