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

@ -11,7 +11,7 @@
<corpauthor>The FreeBSD Documentation Project</corpauthor> <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> <abstract>
<para>This is the FAQ for FreeBSD versions 2.X, 3.X, and 4.X. <para>This is the FAQ for FreeBSD versions 2.X, 3.X, and 4.X.
@ -1429,9 +1429,65 @@ File: +DESC (ignored)</screen>
</question> </question>
<answer> <answer>
<para>It seems as though IBM decided to use partition ID 165 for <para>A bug in early revisions of IBM's BIOS on these machines
their suspend-to-disk partition. This is the same ID FreeBSD mistakenly identifies the FreeBSD partition as a potential FAT
uses, and after installing FreeBSD the BIOS refuses to boot. A 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 workaround is to install FreeBSD, change the partition ID FreeBSD
uses, and install new boot blocks that can handle the different uses, and install new boot blocks that can handle the different
partition ID.</para> 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> <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> <abstract>
<para>This is the FAQ for FreeBSD versions 2.X, 3.X, and 4.X. <para>This is the FAQ for FreeBSD versions 2.X, 3.X, and 4.X.
@ -1429,9 +1429,65 @@ File: +DESC (ignored)</screen>
</question> </question>
<answer> <answer>
<para>It seems as though IBM decided to use partition ID 165 for <para>A bug in early revisions of IBM's BIOS on these machines
their suspend-to-disk partition. This is the same ID FreeBSD mistakenly identifies the FreeBSD partition as a potential FAT
uses, and after installing FreeBSD the BIOS refuses to boot. A 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 workaround is to install FreeBSD, change the partition ID FreeBSD
uses, and install new boot blocks that can handle the different uses, and install new boot blocks that can handle the different
partition ID.</para> partition ID.</para>