From 3c163db4ee43ea8374fd03d3598361138ec93f5c Mon Sep 17 00:00:00 2001 From: "Bruce A. Mah" Date: Wed, 19 Jun 2002 20:52:42 +0000 Subject: [PATCH] Regen from article.sgml 1.1.2.69. --- en/releases/4.6R/errata.html | 102 ++++++++++++++++++++++++++++++++++- 1 file changed, 101 insertions(+), 1 deletion(-) diff --git a/en/releases/4.6R/errata.html b/en/releases/4.6R/errata.html index 429d6bbf8e..1a237f3198 100644 --- a/en/releases/4.6R/errata.html +++ b/en/releases/4.6R/errata.html @@ -22,7 +22,7 @@

$FreeBSD: src/release/doc/en_US.ISO8859-1/errata/article.sgml,v - 1.1.2.68 2002/06/15 23:52:22 bmah Exp $
+ 1.1.2.69 2002/06/19 18:57:20 bmah Exp $

@@ -136,6 +136,106 @@ contain this patch. To get an updated version, use CVSup to obtain a more recent ports collection.

+ +

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. + +
  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. + +
  3. +

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

    +
    4. + +
  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. + +
  5. +

    Continue the installation as normal.

    +
    6. +
+
+ +

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. + +
  2. +

    Reboot the machine.

    +
    3. +
+
+ +

As of this writing, this issue is under continuing + investigation.