OS/2 Boot Logo

File Format
Name	OS/2 Boot Logo
Ontology	Electronic File Formats Graphics OS/2 Boot Logo
Extension(s)	(none), .lgo
Released	1994

OS/2 Boot Logo is a compressed raster graphics format used for the logo shown when OS/2 Warp operating systems boot. Images are 640×400 (Warp 3), or 640×480 (Warp 4), with 16 colors.

The file used by the operating system is named "OS2LOGO", with no filename extension. Inactive logo files are conventionally given the extension .lgo.

No public format specifications are known.

Software

• PMView Pro
• PrepLogo (OS/2 software; write-only)
• MAKELOGO - A utility on the IBM OS/2 Developer Connection CDs, which can create a logo file from raw bitmap files
• GBM → GBMLOGO (write-only; requires MAKELOGO)
• BMP2LOGO.ZIP (OS/2 software; write-only; requires MAKELOGO)

Sample files

• PrepLogo → logos.zip
  • WARPLOGO.ZIP - Older version of the above?
• http://www.altsan.org/os2/graphics/index.html
• os2logo