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185 lines
5.2 KiB
185 lines
5.2 KiB
How to try to survive an IBM Mwave under Linux SB drivers |
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+ IBM have now released documentation of sorts and Torsten is busy |
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trying to make the Mwave work. This is not however a trivial task. |
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---------------------------------------------------------------------------- |
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OK, first thing - the IRQ problem IS a problem, whether the test is bypassed or |
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not. It is NOT a Linux problem, but an MWAVE problem that is fixed with the |
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latest MWAVE patches. So, in other words, don't bypass the test for MWAVES! |
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I have Windows 95 on /dev/hda1, swap on /dev/hda2, and Red Hat 5 on /dev/hda3. |
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The steps, then: |
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Boot to Linux. |
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Mount Windows 95 file system (assume mount point = /dos95). |
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mkdir /dos95/linux |
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mkdir /dos95/linux/boot |
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mkdir /dos95/linux/boot/parms |
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Copy the kernel, any initrd image, and loadlin to /dos95/linux/boot/. |
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Reboot to Windows 95. |
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Edit C:/msdos.sys and add or change the following: |
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Logo=0 |
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BootGUI=0 |
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Note that msdos.sys is a text file but it needs to be made 'unhidden', |
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readable and writable before it can be edited. This can be done with |
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DOS' "attrib" command. |
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Edit config.sys to have multiple config menus. I have one for windows 95 and |
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five for Linux, like this: |
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------------ |
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[menu] |
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menuitem=W95, Windows 95 |
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menuitem=LINTP, Linux - ThinkPad |
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menuitem=LINTP3, Linux - ThinkPad Console |
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menuitem=LINDOC, Linux - Docked |
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menuitem=LINDOC3, Linux - Docked Console |
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menuitem=LIN1, Linux - Single User Mode |
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REM menudefault=W95,10 |
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[W95] |
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[LINTP] |
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[LINDOC] |
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[LINTP3] |
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[LINDOC3] |
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[LIN1] |
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[COMMON] |
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FILES=30 |
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REM Please read README.TXT in C:\MWW subdirectory before changing the DOS= statement. |
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DOS=HIGH,UMB |
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DEVICE=C:\MWW\MANAGER\MWD50430.EXE |
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SHELL=c:\command.com /e:2048 |
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------------------- |
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The important things are the SHELL and DEVICE statements. |
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Then change autoexec.bat. Basically everything in there originally should be |
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done ONLY when Windows 95 is booted. Then you add new things specifically |
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for Linux. Mine is as follows |
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--------------- |
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@ECHO OFF |
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if "%CONFIG%" == "W95" goto W95 |
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REM |
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REM Linux stuff |
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REM |
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SET MWPATH=C:\MWW\DLL;C:\MWW\MWGAMES;C:\MWW\DSP |
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SET BLASTER=A220 I5 D1 |
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SET MWROOT=C:\MWW |
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SET LIBPATH=C:\MWW\DLL |
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SET PATH=C:\WINDOWS;C:\MWW\DLL; |
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CALL MWAVE START NOSHOW |
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c:\linux\boot\loadlin.exe @c:\linux\boot\parms\%CONFIG%.par |
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:W95 |
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REM |
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REM Windows 95 stuff |
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REM |
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c:\toolkit\guard |
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SET MSINPUT=C:\MSINPUT |
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SET MWPATH=C:\MWW\DLL;C:\MWW\MWGAMES;C:\MWW\DSP |
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REM The following is used by DOS games to recognize Sound Blaster hardware. |
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REM If hardware settings are changed, please change this line as well. |
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REM See the Mwave README file for instructions. |
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SET BLASTER=A220 I5 D1 |
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SET MWROOT=C:\MWW |
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SET LIBPATH=C:\MWW\DLL |
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SET PATH=C:\WINDOWS;C:\WINDOWS\COMMAND;E:\ORAWIN95\BIN;f:\msdev\bin;e:\v30\bin.dbg;v:\devt\v30\bin;c:\JavaSDK\Bin;C:\MWW\DLL; |
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SET INCLUDE=f:\MSDEV\INCLUDE;F:\MSDEV\MFC\INCLUDE |
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SET LIB=F:\MSDEV\LIB;F:\MSDEV\MFC\LIB |
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win |
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------------------------ |
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Now build a file in c:\linux\boot\parms for each Linux config that you have. |
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For example, my LINDOC3 config is for a docked Thinkpad at runlevel 3 with no |
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initrd image, and has a parameter file named LINDOC3.PAR in c:\linux\boot\parms: |
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----------------------- |
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# LOADLIN @param_file image=other_image root=/dev/other |
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# |
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# Linux Console in docking station |
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# |
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c:\linux\boot\zImage.krn # First value must be filename of Linux kernel. |
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root=/dev/hda3 # device which gets mounted as root FS |
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ro # Other kernel arguments go here. |
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apm=off |
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doc=yes |
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3 |
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----------------------- |
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The doc=yes parameter is an environment variable used by my init scripts, not |
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a kernel argument. |
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However, the apm=off parameter IS a kernel argument! APM, at least in my setup, |
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causes the kernel to crash when loaded via loadlin (but NOT when loaded via |
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LILO). The APM stuff COULD be forced out of the kernel via the kernel compile |
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options. Instead, I got an unofficial patch to the APM drivers that allows them |
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to be dynamically deactivated via kernel arguments. Whatever you chose to |
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document, APM, it seems, MUST be off for setups like mine. |
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Now make sure C:\MWW\MWCONFIG.REF looks like this: |
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---------------------- |
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[NativeDOS] |
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Default=SB1.5 |
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SBInputSource=CD |
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SYNTH=FM |
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QSound=OFF |
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Reverb=OFF |
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Chorus=OFF |
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ReverbDepth=5 |
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ChorusDepth=5 |
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SBInputVolume=5 |
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SBMainVolume=10 |
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SBWaveVolume=10 |
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SBSynthVolume=10 |
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WaveTableVolume=10 |
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AudioPowerDriver=ON |
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[FastCFG] |
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Show=No |
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HideOption=Off |
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----------------------------- |
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OR the Default= line COULD be |
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Default=SBPRO |
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Reboot to Windows 95 and choose Linux. When booted, use sndconfig to configure |
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the sound modules and voilà - ThinkPad sound with Linux. |
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Now the gotchas - you can either have CD sound OR Mixers but not both. That's a |
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problem with the SB1.5 (CD sound) or SBPRO (Mixers) settings. No one knows why |
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this is! |
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For some reason MPEG3 files, when played through mpg123, sound like they |
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are playing at 1/8th speed - not very useful! If you have ANY insight |
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on why this second thing might be happening, I would be grateful. |
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=========================================================== |
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_/ _/_/_/_/ |
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_/_/ _/_/ _/ |
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_/ _/_/ _/_/_/_/ Martin John Bartlett |
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_/ _/ _/ _/ (martin@nitram.demon.co.uk) |
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_/ _/_/_/_/ |
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_/ |
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_/ _/ |
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_/_/ |
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===========================================================
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