Post #231986
2026-02-05 00:09 UTC
I’ve published my Lisa filesystem access tool: https://github.com/eschaton/lisafs
It lets you list and extract the files in a Lisa filesystem, with automatic text file conversion. It supports both the flat Lisa OS 2.0 and the hierarchical Lisa OS 3.0 filesystems.
Right now it only works with Disk Copy 4.2 disk images but should be straightforward to extend to any other format that preserves page labels, e.g. raw 536-byte/sector ProFile dumps.
Open Source, MIT license.
#lisa #retrocomputing #opensource
Replies (3)
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@stepleton@oldbytes.space 2026-02-05 00:48
@eschaton I've just built it on Linux (where I needed to define the symbol EFTYPE, but otherwise no trouble). The github page mentions that 1.0 is untested. Upon trying to read some Office System 1.0 Twiggies, it complained: ./lisafs: error opening image '/path/to/LOS1.0i.dc42': Cannot allocate memory The tool works with Lisa OS 2.0 and 3.0 filesystems, as you report.
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@_the_cloud@mastodon.social 2026-02-05 03:13
@eschaton Nice! Making a mental note to add DART disk image support. :)
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@bygone12@mastodon.social 2026-02-05 03:45
@eschaton Thank you