CF PARTITION TOOL

View every partition on a Microbee CF card image, and format new spare space if there's room. Works entirely in your browser -- nothing is uploaded anywhere. Handles any card size, not just 32MB.

1. LOAD IMAGE

Accepts any raw CF/HDD image with a standard MBR (4-entry partition table, 55 AA signature). Filenames like name-304-4-32 (cylinders-heads-sectors) are auto-detected for geometry; otherwise you can enter it manually below.

2. PARTITIONS ON THIS CARD

Drive	Boot	Start (LBA)	Sectors	Size	Byte range

3. GEOMETRY

Cylinders Heads Sectors/track

Only used for the CHS fields when adding a real partition table entry below. Doesn't affect the spare-space formatter, which works purely in LBA/bytes.

4. FORMAT SPARE SPACE

Carves blank, CP/M-formatted chunks out of unused space after the last partition -- as many as fit, in one click. This does not add partition-table entries -- it's raw space a compatible tool (like VibeDrone's SWITCH feature) can use directly. By default it stops the moment it hits anything it can't verify is safe.

Chunk size (MB)

Overwrite chunks with existing content too (previous test attempts, old data) -- only use this once you've checked it's safe to lose

5. SAVE