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howto:dosemu2 [2023/01/03 20:36] – hobohowto:dosemu2 [2023/02/13 19:04] (current) – Sarting around version 2.0~pre9-7903-9d1ac8737+202302132016, SHELL_LOADHIGH_DEFAULT=0 is now the default Nightfox
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   * ''sudo apt install dosemu2''   * ''sudo apt install dosemu2''
  
-**NOTE:** Starting with dosemu2 build 2.0~pre9-7811-4373124b9+202301020131, dosemu2 seems to require the $_xms and $_ems settings to be more than 1024 in order to run.  I (Nightfox) tried "$_xms = (8192)" and "$_ems = (2048)", and newer builds of dosemu2 would run.  However, with the newer dosemu2 builds, TradeWars 2002 was complaining that it could not initialize the fossil driver and would exit. \\ +**NOTE:** Starting with dosemu2 build 2.0~pre9-7811-4373124b9+202301020131, dosemu2 seems to require the $_xms and $_ems settings to be more than 1024 in order to run.  I (Nightfox) tried "$_xms = (8192)" and "$_ems = (2048)", and newer builds of dosemu2 would run.  Additionally, for TradeWars 2002, it also requires the setting SHELL_LOADHIGH_DEFAULT=0 (otherwise, when running TradeWars 2002, dosemu2 was complaining that it could not initialize the fossil driver and would exit). SHELL_LOADHIGH_DEFAULT=0 is supporeted with newer versions of comcom32.\\ 
-dosemu2 2.0~pre9-7807-4e99cf2c5+202301010131 was the last build that worked with the "_xms = (1024)" setting and TradeWars 2002.  I (Nightfox) have placed a download link for that build of dosemu2 for 64-bit Ubuntu 22.04.1 [[http://digitaldistortionbbs.com:81/dosemu/dosemu2_2.0~pre9-7807-4e99cf2c5+202301010131~ubuntu22.04.1_amd64.deb|here]].  If you are using another Linux distribution, you will likely need to find another package. +And starting around version 2.0~pre9-7903-9d1ac8737+202302132016, SHELL_LOADHIGH_DEFAULT=0 is now the default, so it doesn't absolutely need to be specified anymore for TradeWars 2002.\\
  
 If you prefer to use the latest FreeDOS environment, change the second command, to read ''sudo apt install dosemu2 fdpp''.  Once you accept the changes to your system, DOSEMU2 and FreeDOS will be installed. If you prefer to use the latest FreeDOS environment, change the second command, to read ''sudo apt install dosemu2 fdpp''.  Once you accept the changes to your system, DOSEMU2 and FreeDOS will be installed.
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 \\ \\
 Update the cmd settings in exec/dosemu.ini (note that lredir is deprecated according to the dosemu2 documentation; thus, drives are mapped on these command lines - lredir should now be unnecessary in external.bat):\\ Update the cmd settings in exec/dosemu.ini (note that lredir is deprecated according to the dosemu2 documentation; thus, drives are mapped on these command lines - lredir should now be unnecessary in external.bat):\\
-  cmd=/usr/bin/env $TERM HOME=$CTRLDIR QUIET=1 DOSDRIVE_D=$NODEDIR DOSDRIVE_E=$XTRNDIR DOSDRIVE_F=$CTRLDIR DOSDRIVE_G=$DATADIR DOSDRIVE_H=$EXECDIR NODEDIR=$NODEDIR $DOSEMUBIN -d $NODEDIR -d $XTRNDIR -I"video { none }" $VIRTUALCONF -f$DOSEMUCONF -E$EXTBAT -o$NODEDIRdosemu_boot.log $EXTLOG+  cmd=/usr/bin/env $TERM HOME=$CTRLDIR QUIET=1 DOSDRIVE_D=$NODEDIR DOSDRIVE_E=$XTRNDIR DOSDRIVE_F=$CTRLDIR DOSDRIVE_G=$DATADIR DOSDRIVE_H=$EXECDIR NODEDIR=$NODEDIR $DOSEMUBIN SHELL_LOADHIGH_DEFAULT=0 -d $NODEDIR -d $XTRNDIR -I"video { none }" $VIRTUALCONF -f$DOSEMUCONF -E$EXTBAT -o$NODEDIRdosemu_boot.log $EXTLOG
   [stdio]   [stdio]
-  cmd=/usr/bin/env $TERM HOME=$CTRLDIR QUIET=1 DOSDRIVE_D=$NODEDIR DOSDRIVE_E=$XTRNDIR DOSDRIVE_F=$CTRLDIR DOSDRIVE_G=$DATADIR DOSDRIVE_H=$EXECDIR NODEDIR=$NODEDIR $DOSEMUBIN -d $NODEDIR -d $XTRNDIR -I"video { none }" -I'keystroke "\n"' $VIRTUALCONF -f$DOSEMUCONF -E$EXTBAT -o$NODEDIRdosemu_boot.log $EXTLOG+  cmd=/usr/bin/env $TERM HOME=$CTRLDIR QUIET=1 DOSDRIVE_D=$NODEDIR DOSDRIVE_E=$XTRNDIR DOSDRIVE_F=$CTRLDIR DOSDRIVE_G=$DATADIR DOSDRIVE_H=$EXECDIR NODEDIR=$NODEDIR $DOSEMUBIN SHELL_LOADHIGH_DEFAULT=0 -d $NODEDIR -d $XTRNDIR -I"video { none }" -I'keystroke "\n"' $VIRTUALCONF -f$DOSEMUCONF -E$EXTBAT -o$NODEDIRdosemu_boot.log $EXTLOG
  
 In ctrl/dosemu.conf, add the following two lines (and change the path to sbbs to match what it is on your system):\\ In ctrl/dosemu.conf, add the following two lines (and change the path to sbbs to match what it is on your system):\\
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   @lredir -f D: $NODEDIR >NUL   @lredir -f D: $NODEDIR >NUL
  
 +
 +For the SHELL_LOADHIGH_DEFAULT=0, alternately, you can edit exechlp.bat (in /usr/share/dosemu/dosemu2-cmds-0.3/dosemu) and if SHELL_LOADHIGH_DEFAULT is in there, set it to 0 (it might be 1).  The SHELL_LOADHIGH_DEFAULT=0 setting is supported with newer versions of comcom32.
 ===== See Also ===== ===== See Also =====
   * [[:howto:|howto index]]   * [[:howto:|howto index]]

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