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Update the "My IBM laptop won't boot" question with some information about

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the BIOS revisions in which IBM fixed the problem.
This commit is contained in:
Nik Clayton 2001-02-17 01:07:43 +00:00
parent dce97a03c9
commit 8a43b4e618
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/head/; revision=8798
2 changed files with 120 additions and 8 deletions
en_US.ISO8859-1/books/faq
book.sgml
en_US.ISO_8859-1/books/faq
book.sgml

64
en_US.ISO8859-1/books/faq/book.sgml
View file

@ -11,7 +11,7 @@
<corpauthor>The FreeBSD Documentation Project</corpauthor>
<pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.142 2001/02/02 03:16:45 nik Exp $</pubdate>
<pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.143 2001/02/06 00:32:37 nik Exp $</pubdate>
<abstract>
<para>This is the FAQ for FreeBSD versions 2.X, 3.X, and 4.X.
@ -1429,9 +1429,65 @@ File: +DESC (ignored)</screen>
</question>
<answer>
<para>It seems as though IBM decided to use partition ID 165 for
their suspend-to-disk partition. This is the same ID FreeBSD
uses, and after installing FreeBSD the BIOS refuses to boot. A
<para>A bug in early revisions of IBM's BIOS on these machines
mistakenly identifies the FreeBSD partition as a potential FAT
suspend-to-disk partition. When the BIOS tries to parse the
FreeBSD partition it hangs.</para>
<para>According to IBM<footnote> <para>In an e-mail from Keith
Frechette
<email>kfrechet@us.ibm.com</email>.</para></footnote>, the
following model/BIOS release numbers incorporate the fix.</para>
<informaltable frame="none">
<tgroup cols="2">
<thead>
<row>
<entry>Model</entry>
<entry>BIOS revision</entry>
</row>
</thead>
<tbody>
<row>
<entry>T20</entry>
<entry>IYET49WW or later</entry>
</row>
<row>
<entry>T21</entry>
<entry>KZET22WW or later</entry>
</row>
<row>
<entry>A20p</entry>
<entry>IVET62WW or later</entry>
</row>
<row>
<entry>A20m</entry>
<entry>IWET54WW or later</entry>
</row>
<row>
<entry>A21p</entry>
<entry>KYET27WW or later</entry>
</row>
<row>
<entry>A21m</entry>
<entry>KXET24WW or later</entry>
</row>
<row>
<entry>A21e</entry>
<entry>KUET30WW</entry>
</row>
</tbody>
</tgroup>
</informaltable>
<para>If you have an earlier BIOS, and upgrading is not an option a
workaround is to install FreeBSD, change the partition ID FreeBSD
uses, and install new boot blocks that can handle the different
partition ID.</para>

64
en_US.ISO_8859-1/books/faq/book.sgml
View file

@ -11,7 +11,7 @@
<corpauthor>The FreeBSD Documentation Project</corpauthor>
<pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.142 2001/02/02 03:16:45 nik Exp $</pubdate>
<pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.143 2001/02/06 00:32:37 nik Exp $</pubdate>
<abstract>
<para>This is the FAQ for FreeBSD versions 2.X, 3.X, and 4.X.
@ -1429,9 +1429,65 @@ File: +DESC (ignored)</screen>
</question>
<answer>
<para>It seems as though IBM decided to use partition ID 165 for
their suspend-to-disk partition. This is the same ID FreeBSD
uses, and after installing FreeBSD the BIOS refuses to boot. A
<para>A bug in early revisions of IBM's BIOS on these machines
mistakenly identifies the FreeBSD partition as a potential FAT
suspend-to-disk partition. When the BIOS tries to parse the
FreeBSD partition it hangs.</para>
<para>According to IBM<footnote> <para>In an e-mail from Keith
Frechette
<email>kfrechet@us.ibm.com</email>.</para></footnote>, the
following model/BIOS release numbers incorporate the fix.</para>
<informaltable frame="none">
<tgroup cols="2">
<thead>
<row>
<entry>Model</entry>
<entry>BIOS revision</entry>
</row>
</thead>
<tbody>
<row>
<entry>T20</entry>
<entry>IYET49WW or later</entry>
</row>
<row>
<entry>T21</entry>
<entry>KZET22WW or later</entry>
</row>
<row>
<entry>A20p</entry>
<entry>IVET62WW or later</entry>
</row>
<row>
<entry>A20m</entry>
<entry>IWET54WW or later</entry>
</row>
<row>
<entry>A21p</entry>
<entry>KYET27WW or later</entry>
</row>
<row>
<entry>A21m</entry>
<entry>KXET24WW or later</entry>
</row>
<row>
<entry>A21e</entry>
<entry>KUET30WW</entry>
</row>
</tbody>
</tgroup>
</informaltable>
<para>If you have an earlier BIOS, and upgrading is not an option a
workaround is to install FreeBSD, change the partition ID FreeBSD
uses, and install new boot blocks that can handle the different
partition ID.</para>