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fluxengine/doc/disk-hplif.md
2024-10-16 21:17:43 +02:00

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hplif
====
## a variety of disk formats used by HP
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LIF, a.k.a. Logical Interchange Format, is a series of formats used by
Hewlett-Packard across their entire range of computers, from calculators to
modern servers. It also defines a simple non-hierarchical filesystem which is
bizarrely _still_ supported by HP-UX systems.
Floppy-disk wise, they're yet more variations of the standard IBM floppy
encoding scheme.
## Options
- Format variants:
- `264`: 264kB 3.5" 66-track SSDD; HP9121 format
- `608`: 608kB 3.5" 76-track DSDD; HP9122 format
- `616`: 616kB 3.5" 77-track DSDD
- `770`: 770kB 3.5" 77-track DSDD
## Examples
To read:
- `fluxengine read hplif --264 -s drive:0 -o hplif.img`
- `fluxengine read hplif --608 -s drive:0 -o hplif.img`
- `fluxengine read hplif --616 -s drive:0 -o hplif.img`
- `fluxengine read hplif --770 -s drive:0 -o hplif.img`
To write:
- `fluxengine write hplif --264 -d drive:0 -i hplif.img`
- `fluxengine write hplif --608 -d drive:0 -i hplif.img`
- `fluxengine write hplif --616 -d drive:0 -i hplif.img`
- `fluxengine write hplif --770 -d drive:0 -i hplif.img`
## References
* [A summary of the Hewlett Packard floppy disk
formats](http://www.bitsavers.org/pdf/hp/disc/912x/HP_Flexible_Disk_Formats.pdf)