Emerge output of jade failure.

bochs_log (text/plain), 41.49 KB, created by Peter Colijn on 2004-09-30 22:14:30 UTC

Using catalogs: /etc/sgml/catalog
Using stylesheet: /usr/share/sgml/docbook/utils-0.6.11/docbook-utils.dsl#html
Working on: /var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:10:55:W: cannot generate system identifier for public text "-//OASIS//DTD DocBook V4.1//EN"
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:16:0:E: reference to entity "BOOK" for which no system identifier could be generated
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:10:0: entity was defined here
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:16:0:E: DTD did not contain element declaration for document type name
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:18:5:E: element "BOOK" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:19:9:E: element "BOOKINFO" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:20:9:E: element "TITLE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:21:15:E: element "AUTHORGROUP" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:22:10:E: element "AUTHOR" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:22:21:E: element "FIRSTNAME" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:22:47:E: element "SURNAME" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:23:10:E: element "AUTHOR" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:23:21:E: element "FIRSTNAME" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:23:47:E: element "SURNAME" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:24:10:E: element "AUTHOR" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:24:21:E: element "FIRSTNAME" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:24:50:E: element "SURNAME" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:25:10:E: element "AUTHOR" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:25:21:E: element "FIRSTNAME" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:25:48:E: element "SURNAME" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:26:10:E: element "AUTHOR" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:26:21:E: element "FIRSTNAME" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:26:52:E: element "SURNAME" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:27:10:E: element "EDITOR" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:27:21:E: element "FIRSTNAME" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:27:49:E: element "SURNAME" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:32:12:E: there is no attribute "ID"
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:32:26:E: element "CHAPTER" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:32:33:E: element "TITLE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:33:12:E: there is no attribute "ID"
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:33:25:E: element "SECTION" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:33:32:E: element "TITLE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:34:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:47:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:49:41:E: element "FOOTNOTE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:50:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:68:23:E: element "FOOTNOTE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:69:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:78:24:E: there is no attribute "URL"
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:78:68:E: element "ULINK" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:82:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:100:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:105:10:E: there is no attribute "FORMAT"
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:105:10:E: there is no attribute "FILEREF"
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:105:10:E: element "INLINEGRAPHIC" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:105:20:E: element "FOOTNOTE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:106:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:133:28:E: element "SECTION" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:133:35:E: element "TITLE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:134:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:136:8:E: there is no attribute "LINKEND"
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:136:26:E: element "LINK" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:142:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:158:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:167:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:176:35:E: element "SECTION" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:176:42:E: element "TITLE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:177:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:182:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:190:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:200:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:209:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:224:33:E: element "SECTION" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:224:40:E: element "TITLE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:226:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:235:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:242:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:249:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:251:33:E: element "ULINK" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:259:21:E: element "SECTION" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:259:28:E: element "TITLE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:260:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:261:50:E: element "FOOTNOTE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:262:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:264:36:E: element "ULINK" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:265:42:E: element "ULINK" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:269:42:E: element "FOOTNOTE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:270:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:272:78:E: element "ULINK" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:276:15:E: element "PROGRAMLISTING" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:296:24:E: element "SECTION" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:296:31:E: element "TITLE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:298:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:307:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:318:22:E: element "SECTION" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:318:29:E: element "TITLE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:319:5:E: element "PARA" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:323:6:E: element "TABLE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:323:13:E: element "TITLE" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:324:13:E: there is no attribute "COLS"
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:324:23:E: there is no attribute "ALIGN"
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:324:37:E: there is no attribute "COLSEP"
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:324:48:E: there is no attribute "ROWSEP"
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:324:51:E: element "TGROUP" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:325:6:E: element "THEAD" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:326:6:E: element "ROW" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:327:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:328:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:329:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:332:6:E: element "TBODY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:333:6:E: element "ROW" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:334:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:335:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:336:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:340:6:E: element "ROW" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:341:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:342:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:343:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:345:6:E: element "ROW" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:346:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:347:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:348:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:351:6:E: element "ROW" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:352:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:353:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:354:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:358:6:E: element "ROW" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:359:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:360:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:361:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:364:6:E: element "ROW" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:365:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:366:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:367:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:370:6:E: element "ROW" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:371:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:372:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:373:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:376:6:E: element "ROW" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:377:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:378:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:379:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:383:6:E: element "ROW" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:384:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:385:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:386:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:390:6:E: element "ROW" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:391:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:392:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:393:10:E: element "ENTRY" undefined
jade:/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook/./user/user.dbk:399:6:E: element "ROW" undefined
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jade:I: maximum number of errors (200) reached; change with -E option
jade:/usr/share/sgml/docbook/utils-0.6.11/docbook-utils.dsl:9:96:W: cannot generate system identifier for public text "-//Norman Walsh//DOCUMENT DocBook HTML Stylesheet//EN"
jade:/usr/share/sgml/docbook/utils-0.6.11/docbook-utils.dsl:19:39:E: no style-specification or external-specification with ID "DOCBOOK"
   Bochs User Manual
      KevinLawton
   BryceDenney
   N. DavidGuarneri
   VolkerRuppert
   ChristopheBothamy
   MichaelCalabrese
   

Introduction to Bochs
What is Bochs?
Bochs is a program that simulates a complete Intel x86 computer.  It 
can be configured to act like a  386, 486, Pentium, or Pentium Pro.
Bochs interprets every instruction from power-up to reboot, and has
device models for all of the standard PC peripherals: keyboard, mouse,
VGA card/monitor, disks, timer chips, network card, etc.  Because Bochs
simulates the whole PC environment, the software running in the simulation
"believes" it is running on a real machine.  This approach allows Bochs
to run a wide variety of software with no modification, include most popular
x86 operating systems: Windows 95/98/NT, all Linux flavors, all BSD flavors,
and more.

Bochs is written in the C++ programming language, and is designed to run
on many different host platformsSince Bochs can run on one kind of machine and simulate another machine, we
have to be clear in our terminology to avoid confusion.  The host platform is
the machine that runs the Bochs software.  The guest platform is the operating
system and applications that Bochs is simulating., including x86, PPC, Alpha, Sun, and MIPS.  No matter what the
host platform is, Bochs still simulates x86 software.  In other words, it
does not depend on the native instructions of the host machine at all.
This is both a strength and a weakness, and it's the major difference between
Bochs and many other x86 emulation software such as plex86, VMware, etc.
Because Bochs uses software simulation for every single x86 instruction, it
can simulate a Windows application on an Alpha or Sun workstation.  However,
the downside of Bochs's approach is simulation performance.  To model the
processor accurately, Bochs must run many instructions for every simulated x86
instruction, and this makes the simulated machine many times slower than
the physical machine.  Commercial PC emulators (VMware, Connectix, etc.) can
achieve much high emulation speed using a technique called 
virtualizationVirtualization takes advantage of simulating x86 instructions on an
x86 machine, allowing large portions of the simulation to take place
at native hardware speed.  Whenever the simulated machine talks to the
hardware or enters certain privileged modes (such as in kernel code),
the simulator typically takes control and simulates that code in
software at much slower speed, just like Bochs does., but they are neither portable to non-x86 platforms nor open
source.  The Plex86 project is
working toward an open-source x86 simulator with virtualization.

To do anything interesting in the simulated machine, Bochs needs to interact
with the operating system on the host platform (the host OS).  When you press a
key in the Bochs display window, a key event goes into the device model for the
keyboard.  When the simulated machine needs to read from the simulated hard
disk, Bochs reads from a disk image file on the host machine.  When the
simulated machine sends a network packet to the local network, Bochs uses the
host platform's network card to send the packet out into the real world.  These
interactions between Bochs and the host operating system can be complicated,
and in some cases they are host platform specific.  Sending a network packet in
FreeBSD requires different code than sending the packet in Windows 95, for
example.  For this reason, certain features are supported on some host
platforms and not others.  On GNU/Linux, Bochs can simulate a network card that
communicates with the world, but on BeOS the simulated network card may not
work because the communication code between the device model and the BeOS
operating system has not been written.


Bochs was written by Kevin Lawton starting in 1994.  It began as a 
commercial product, which you could buy with source code for ...
 We need a Bochs historian to help out here.  For background, it would be
interesting to know how much Bochs used to cost and what it was used for.  I
thought I saw an interview out there somewhere where Kevin says why he started
it and some more background information. Finally, in March 2000, Mandrakesoft bought Bochs and made it open
source under the GNU LGPL.

In March 2001, Kevin helped a few developers to move all Bochs activities from
bochs.com to a new site at bochs.sourceforge.net.  Since then the Bochs Project
has settled into its new home, and around release times has even hit #1 most
active project of the week at Source Forge.     

Who uses Bochs?
 It is hard to estimate how many people have tried Bochs or use it on a
regular basis, but a few statistics give an indication.  The bochs-developers mailing list, which is the
primary source of news on bugs and releases, has over 400 subscribers.  The
latest version has been downloaded over 50,000 times from SourceForge, not
counting any mirror website or CVS users.

Bochs has many possible uses, and different people use it for different 
things.  Many people use it to run applications in a second operating system 
without needing two different computers or dual-booting.  Running 
Windows software on a non-x86 workstation or on an x86 UNIX box are common
uses.  Also, because every hardware instruction and every line of simulator
code is accessible, Bochs is used extensively for debugging new operating
systems.  If you were writing boot code for your home-brewed
x86 operating system and it didn't work right, booting it in Bochs could
give you great visibility into what is really going on.  The Bochs 
debugger lets you simulate quickly or slowly, pausing whenever you want
to look at the contents of memory or the CPU registers.  Or, if you 
wanted to study which parts of a program take the most time, you could use
Bochs to measure how often certain pieces of the code were executed.

Bochs has been used as a teaching tool in Operating Systems classes, in which
students used and modified it to learn how the PC hardware works.  As a final
project the students had to add a new peripheral device, so they had to learn
all about I/O ports, interrupts, and device drivers.  In industry, it is used
to support legacy applications on modern hardware, and as a reference model
when testing new x86-compatible hardware.  

There may be as many uses of Bochs as there are users.  Do you want to run 
your old DOS games?  Or learn how to program under GNU/Linux, without leaving your
Windows desktop?  Or reverse engineer your printer driver?  You decide.
  


Is Bochs right for me?
Bochs is very useful for some applications, and not well suited to others.
This section tries to answer the question, "Is Bochs right for me?"

Bochs may or may not be right for you, depending on what it is you want to do.  
Perhaps all you want to do is run one or two applications native to Microsoft Windows 
on GNU/Linux, or vice-versa.  Perhaps your biggest concern is speed and performance.  
Maybe you don't mind tweaking a few files here and there when you want another application 
to work in that setting.  
In cases where the objective is to simulate x86 hardware on an x86, Plex86, Wine, and 
VMware might be your best options.

On the other hand, perhaps you have a vital application running on an older operating 
system that only runs well on old hardware.  You are concerned that the life cycle of 
this hardware is coming to an end, and your backup and restoration hardware and tools 
no longer suffice for the amount of data that you have.  You need to transfer backup 
disk images over a network, and want to use modern procedures for hardware maintenance.  
Perhaps the application is important enough to run on a larger computer, such as a 
64-bit machine, or even a mainframe.  Bochs would be an excellent option in such a scenario.

Perhaps your objective is to debug software or hardware drivers.  Bochs offers a controlled 
environment that can better assist you in determining cause and effect relationships.  
You can take snapshots that show you what is going on behind the scenes.  
You can isolate the line that caused that crash.  You can have multiple 
images and compare them underg++ -c -I.. -I./.. -I../instrument/stubs -I./../instrument/stubs -march=athlon-mp -O2 -pipe -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES   `sdl-config --cflags` ctrl_xfer_pro.cc -o ctrl_xfer_pro.o
g++ -shared -nostdlib /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/../../../crti.o /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/crtbeginS.o  .libs/sdl.o  -Wl,--rpath -Wl,/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4 -Wl,--rpath -Wl,/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4 -L/usr/X11R6/lib -L/usr/lib/gcc-lib/i686-pc-linux-gnu/../../../i686-pc-linux-gnu/lib -L/usr/i686-pc-linux-gnu/lib -L/usr/i686-pc-linux-gnu/bin -L/usr/lib/gcc/i686-pc-linux-gnu/3.4.2 -L/usr/lib /usr/lib/libSDL.so -lpthread -L/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4 -L/usr/lib/gcc/i686-pc-linux-gnu/3.3.4 -L/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/../../../../i686-pc-linux-gnu/lib -L/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/../../.. /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/libstdc++.so -lm -lc -lgcc_s /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/crtendS.o /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/../../../crtn.o  -Wl,-rpath -Wl,/usr/lib -Wl,-soname -Wl,libbx_sdl.so.0 -o .libs/libbx_sdl.so.0.0.0
 a microscope.  
In these situation, Bochs could save you time and resources.

Information Technology changes faster than any other field.  
It is very easy to forget transitional software that came and went.  
But history is important to all fields, and to build on the future, 
it is important to understand the past.  Computer programmers, however, 
do not have the same advantage as an architect, who can, for example, 
take a trip to Greece and touch a pillar.  Much of the history of Computer 
Science is left on corroding floppies and malfunctioning hardware.  
Bochs gives you the benefit of having one or more complete environments 
where you can understand firsthand the behavior of operating systems and 
programs.  This cannot be achieved with an "emulator" such as Wine.
  

Will it work for me?

Whether Bochs works for you depends on your host hardware, host operating 
system, guest operating system, guest software, and your ability to work in 
a command-line environment using documentation.  There is no gui or wizard 
to help you through the setup process.  You do not get a recovery or installation 
disk to assist you in the process of installing a guest operating system.  
Bochs only provides you with the "virtual hardware", and it is up to you to do the rest.

Bochs will run on Windows, GNU/Linux, FreeBSD, OpenBSD, or BeOS.  
If you are running on x86 hardware, you have a range of choices.  
Check the installation section for your host platform to see what options 
Bochs supports on your platform.  If the most important factor is speed, 
you may want to try a virtualization product instead of Bochs (VMware, plex86).

If you are using a non-x86 machine, then Bochs is one of the few choices for
running x86 software.  Bochs has been known to work on Solaris (Sparc), 
GNU/Linux (PowerPC/Alpha), MacOS (PowerPC), IRIX (MIPS), BeOS (PowerPC), Digital
UNIX (Alpha), and AIX (PowerPC).

You can also find more detailed testing information on the testing
status page on the Bochs web site.  
  

Bochs License
Bochs is copyrighted by MandrakeSoft S.A.MandrakeSoft has web sites at
http://mandrakesoft.com and
http://www.linux-mandrake.com.
and distributed under the
GNU Lesser General Public LicenseComplete text of the GNU LGPL is included with the source code in a file
called COPYING, and is also here..  The following text appears at the
top of every source code file in the Bochs distribution:
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

  

Third Party Software Licensing and Temporary Files

Before you install or use any Operating System, BIOS, or other software package
within the Bochs PC emulation environment, make sure you are and will be in
compliance with all the software licenses pertaining to the software you wish
to install.  It is completely your responsibility to provide licenses and records
on all software that you install and/or use.  It is also completely your responsibility to
maintain total compliance with all Software Licenses involved.

In the process of installing Software within the Bochs PC emulation environment,
it may be helpful or necessary to copy or convert files from the original distribution
format to a second format to facilitate the installation.  You should delete
the intermediate files after installation, making certain that only the
original distribution files remain.

  

Features
The following table shows the features of Bochs and which platforms they
currently work with.
Bochs Features
      Feature
    Supported?
    Description
  
      configure script
    Yes
    Bochs uses GNU autoconf to configure Makefiles and headers.
    Autoconf helps Bochs to compile on a wide variety of platforms.
    
  
      386,486,Pentium Emulation
    Yes
    Bochs can be configured to emulate on of several families of Intel hardware.  Some Pentium features are supported, such as the Time Stamp Counter.
  
      Pentium Pro Emulation
    Incomplete
    A few Pentium Pro features are supported, such as an on-chip APIC for SMP simulation.
    
  
      Command Line Debugger
    Yes
    Powerful command line debugger (optional) that lets you stop
    execution and examine registers and memory, set breakpoints, etc.
    
  
      Floating Point
    Yes
    Uses software floating point routines written by Bill Metzenthen
    
  
      Enhanced BIOS
    Yes
    Implements ElTorito, EDD v3.0, PCI32 directory service specifications 
    
  
      VGA
    Yes
    VGA color graphics emulation in a window
    
  
      VESA (Display) Support
    Yes
    Currently resolutions up to 1024x768x32bpp are supported.
    You must compile Bochs with vbe enabled and use the LGPL'ed VGABIOS.
    
  
      Floppy disk
    Yes
    Supports floppy disk images on all platforms: 2.88M 3.5", 1.44M 3.5", 1.2M 5.25", and 720K 3.5".  
    On Unix and Windows XP/NT/2000, Bochs can access the physical floppy drive.
    
  
      Multiple ATA channels
    Yes
    Emulates up to 4 ATA channels. Up to 8 ATA/ATAPI emulated devices can be attached,
    two per ATA channel.
    So you can have eight hard disks or seven hard disks and a cdrom or four hard disks and four cdroms, or one
    hard disk and seven cdroms, etc...
    
  
      Hard disk
    Yes
    Emulates ATA-2/IDE hard drives via image files.  Physical
    hard disk access is supported on some architecture, but NOT recommended, primarily for safety reasons.  
    Hard disk up to 32GB are supported, on any platform that support large files access. 
    
  
      CDROM
    Yes
    Emulates ATAPI-4/IDE CDROM.  The CDROMs can read from an ISO disk image
    on any platform.  On Windows (9x/ME/NT/2000/XP), Linux, SunOS, FreeBSD,
    NetBSD, OpenBSD, Amiga/MorphOS, MacOSX and BeOS, Bochs can read from the
    physical cdrom. Starting with version 1.4, Bochs is even able to boot from
    a bootable cd or bootable iso image.
    
  
      Keyboard
    Yes
    Emulates a PS/2 keyboard with North American key mappings. Optional keyboard layout
    remapping files are provided to support localized keyboard in X11 (german, french, italian, spanish,
    danish, swedish)
    
  
      Mouse
    Yes
    Emulates a PS/2 mouse with 2 buttons.
    
  
      Sound Blaster
    Yes
    Emulates a Sound Blaster 16 card.  On Windows, Linux, and FreeBSD
    you can send the output to your host computer's sound system.
    On MacOSX, this is not supported yet.
    
  
      Network card
    Yes
    Emulates an NE2000 compatible network card.  On Windows NT/2000,
    Linux, FreeBSD, and NetBSD, Bochs will forward packets to and from the
    operating system so that the guest OS can talk on the physical network.
    Unfortunately, on some platforms the guest OS can talk to any machine on
    the network BUT NOT the host machine.  On Windows and on systems that
    allow the TAP or TUN/TAP interface, there is no such limitation.  Often
    the host machine may be configured so the guest OS has access to the
    internet. On MacOSX, it is not possible yet to forward packets between the
    guest and the host.
    
  
      Parallel Port
    Yes
    Parallel port emulation was added by Volker Ruppert for Bochs 1.3.
    Data that is sent to the parallel port by the guest OS can be saved into a
    file or sent directly into the parallel port device (Unix only).
    
  
      Serial Port
    Yes
    The serial port (single 16550A UART emulation) is usable, on GNU/Linux,
    NetBSD, OpenBSD, FreeBSD and MacOSX as host and guest. On other OSes the
    emulation is present, but the connection to hard- or software of the host is
    not implemented yet.
    
  
      Gameport
    Yes
    Emulates a standard PC gameport. The connection to a real joystick is
    currently supported on Linux and win32 only.
    
  
      PCI
    incomplete
    The Host-to-PCI bridge, and Primary Memory Controller are available.
    However, PCI-to-IDE or other PCI cards are not implemented yet.
    
  
      USB
    incomplete
    The USB root hub is available, USB devices with access to real hardware
    are not implemented yet.
    
  
      Plugins
    Yes
    Plugins are supported on Linux, MacOS X, Solaris, and Cygwin.
  
      16/32 bit addressing
    Yes
    16 or 32 bit operand sizes, stack size, and addressing
  
      v8086/paging
    Yes
    Virtual-8086 mode and paging
  
      PIC
    Yes
    Master and slave programmable interrupt controller.
    
  
      make[1]: *** [user/book1.html] Error 8
make[1]: Leaving directory `/var/tmp/portage/bochs-2.1.1/work/bochs-2.1.1/doc/docbook'
make: *** [build_docbook] Error 2