ahh, the HP 9133A - the largest and heaviest external 3 1/2" floppy drive ever built.

[tubetime@mastodon.social]

yeah all the heads are stuck. trying a heat gun now...

[darryl_ramm@hachyderm.io]

@tubetime

Hola AMIGO.

[yngmar@social.tchncs.de]

@tubetime Tap on the side with a hammer often sorted that.

[tubetime@mastodon.social]

it spins, but it sounds bad. not much hope for this drive, unfortunately.

[tubetime@mastodon.social]

the Gesswein MFM emulator was able to capture a flux transition dump! i used their mfm_util to analyze it, and it is a very odd format: check out the command line:

--format EC1841 --sectors 32,0 --heads 4 --cylinders 153 --header_crc 0x0,0xa00805,32,4 --data_crc 0x0,0xa00805,32,4 --sector_length 256

[tubetime@mastodon.social]

example output of the analyze command... some bad sectors, but a lot of good ones!

[tubetime@mastodon.social]

output of 'strings' shows some cool stuff!

[tubetime@mastodon.social]

the HPIB verification program for the HP5005B signature analyzer. wild

[drscriptt@oldbytes.space]

@tubetime I feel like knowing what stiction is, without looking it up, dates us.

[brouhaha@mastodon.social]

@tubetime
Maybe it just needs some Head and Shoulders (TM).

[brouhaha@mastodon.social]

@tubetime
Apple sold tons of 3.5" single-sided drives (Sony mechanism, but special for Apple, because... Apple.)
They were uncommon in PCs.

[bsdphk@fosstodon.org]

@tubetime

My AutoArchaeologist toolkit can turn the LIF filesystems into static HTML files so you can spelunk the contents.

Example:

⟦056ab17c6⟧

(phk.freebsd.dk)

Software:

AutoArchaeologist

AutoArchaeologist - Python tool-chest for presenting contents of old data-media as static HTML files.

Codeberg.org (codeberg.org)

[tubetime@mastodon.social]

@bsdphk useful, can it handle partially corrupted images?

[bsdphk@fosstodon.org]

@tubetime

I dont know how robust the LIF excavator is, I have only written/tried it on good images, but the general idea of AA is to handle whatever you throw at it, as well as possibe.

[bsdphk@fosstodon.org]

@tubetime

The fastest way to find out, is probably if you send me the image, but I can also walk you through the setup so you can run AA yourself.

(I've never finished the proper python packaging so it's a bit manual)

[dgesswein@mastodon.social]

@tubetime

With some effort it may be possible to recover more if its just heads were pulled out of alignment when they were stuck.

Data recovery using microstepper

(www.pdp8online.com)

If you want me to take a look at your transitions file to see if I think that method may work send me a private message.

[barryjsullivan@mstdn.social]

@tubetime There’s just a lot of data in that cylinder them heads are reading.

[barryjsullivan@mstdn.social]

@tubetime Try SpinRite 6.0 that will fix it right up.

[agreeable_landfall@mastodon.social]

@tubetime Don't feel bad. I had a Data General Nova at work that I used to collect and process data from flight testing. One day, the machine made a sound like bad brakes. I asked one of the admins, who said, "Oh, yeah. That happens from time to time. We always lose a bit of disk space when that happens."

[tubetime@mastodon.social]

@bsdphk i'm going to try and get a better image file, then i will give it a shot.