FreeDOSNews 5 min read
FreeDOS 1.3 Released
FreeDOS 1.3 arrived February 20, 2022 with kernel 2043, FreeCOM 0.85a, an 8086 FAT32 build, restored networking, compressed floppy media, and installer fixes.
#news#release#freedos
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FreeDOS posts
Memory models, FAT, interrupts, and the open-source continuation of the original PC OS.
FreeDOSDeep Dive 7 min read
Writing Batch Files on FreeDOS
A FreeCOM-specific guide to portable DOS batch files using arguments, SHIFT, IF, ERRORLEVEL, FOR, GOTO, CALL, redirection, and defensive expansion.
#batch-files#scripting#freedos
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The FreeDOS Boot Process: CONFIG.SYS and AUTOEXEC.BAT
A forensic walkthrough of FreeDOS startup from BIOS, MBR and volume boot code through KERNEL.SYS, FDCONFIG.SYS, FreeCOM, FDAUTO.BAT, drivers, and recovery keys.
#boot#config-sys#freedos
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Device Drivers on FreeDOS: How .SYS Files Extend the Kernel
A source-backed tour of FreeDOS device headers, character and block drivers, request packets, entry points, INIT, status words, and loading risks.
#device-drivers#kernel#freedos
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FAT12 and FAT16 Internals: The Filesystem Behind FreeDOS
A forensic guide to FreeDOS FAT12, FAT16 and FAT32 layout, cluster typing, directory and VFAT entries, allocation chains, mirrors, corruption, and recovery.
#fat#filesystem#freedos
Read more FreeDOSFix 4 min read
Fixing 'Bad Command or File Name' Errors on FreeDOS
Distinguish a typo from a missing PATH entry, a wrong file extension, or a corrupted COMMAND.COM behind FreeDOS's generic error message.
#fix#command-line#troubleshooting
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Diagnosing IRQ and Driver Conflicts on Real Hardware Running FreeDOS
Diagnosing why a sound, network, or serial device fails or hangs the system when used alongside another - classic IRQ conflicts and how to resolve them.
#fix#hardware#freedos
Read more FreeDOSFix 4 min read
Fixing 'Out of Environment Space' Errors on FreeDOS
SET commands or a long PATH suddenly fail with 'Out of environment space.' The environment block has a fixed size, and here's how to actually fix it.
#fix#config-sys#freedos
Read more FreeDOSFix 4 min read
Fixing Printer (LPT Port) Problems on FreeDOS
A DOS program can't print, or output is garbled - usually a port configuration, IRQ, or cable-mode mismatch, all diagnosable without any special tools.
#fix#printer#lpt
Read more FreeDOSFix 4 min read
Fixing Sound Blaster Configuration Issues on FreeDOS
Diagnosing missing or wrong DOS game audio by tracing the BLASTER environment variable against the card's actual jumper or Plug-and-Play settings.
#fix#sound-blaster#audio
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