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Boeing 747s receive software updates over floppy disks

theregister.com

11–20 of 165 posts

Re: Boeing 747s receive software updates over floppy disks

#11

The headline is misleading. According to the story text, the floppy is used to load a new navigation database , which is important to be sure but not a critical software update.

Navigation is not critical? It seems like a pretty dangerous turn of events to try a low-visibility landing based on outdated navigation data.

Re: Boeing 747s receive software updates over floppy disks

#12
i'm surprised that people are surprised by this.

i work for aerospace, and this is fairly typical -- albeit not floppy disk examples, but we keep a bunch of old laptops running win 7 and other examples around, hound around for them and spare parts. these machines are off the network, etc.

these systems were developed 20+ years ago and per contract the a manufacture is obligated to maintain them for the service life, so unless these are obsoleted these are to last 20-30+ years.

the costs associated of porting all tools from win 7 to a newer system and re-verifying 50K+ test cases to do a similarity analysis run into astronomical in terms of $ and months (years) of work. no one really wants to poke that bear so you have situations like these.

Re: Boeing 747s receive software updates over floppy disks

#14
post #11

The headline is misleading. According to the story text, the floppy is used to load a new navigation database , which is important to be sure but not a critical software update.

Navigation is not critical? It seems like a pretty dangerous turn of events to try a low-visibility landing based on outdated navigation data.

The headline is misleading in my view because loading navigational data is not the same as an update to the software code or operating system.

Re: Boeing 747s receive software updates over floppy disks

#16
The article said the floppy drive is kept behind a locked panel. The article doesn't mention if the updates fit on a single floppy or a stack of 20 floppies. I don't see a fundamental problem as long as the data has checksums to make sure that it transferred successfully. I used to get tons of errors on floppy disks transferring data back in the 90's using Sun workstations and PCs. I started making my own checksums to make sure my transfers were correct.

Re: Boeing 747s receive software updates over floppy disks

#17
post #12

i'm surprised that people are surprised by this. i work for aerospace, and this is fairly typical -- albeit not floppy disk examples, but we keep a bunch of old laptops running win 7 and other examples around, hound around for them and spare parts. these machines are off the network, etc. these systems were developed 20+ years ago and per contract the a manufacture is obligated to maintain them for the service life,…

That says more about "the bear", and the overbearing nature of the compliance process, then it does about the wisdom or foolishness of relying on an aging hardware platform like the floppy more generally. Most industries don't deal with that. Maybe if this process had actually proved sufficient to prevent the 737 Max woes, we would pay it more respect?

Re: Boeing 747s receive software updates over floppy disks

#18
post #12

i'm surprised that people are surprised by this. i work for aerospace, and this is fairly typical -- albeit not floppy disk examples, but we keep a bunch of old laptops running win 7 and other examples around, hound around for them and spare parts. these machines are off the network, etc. these systems were developed 20+ years ago and per contract the a manufacture is obligated to maintain them for the service life,…

Perhaps people are surprised sometimes by how amazing maintenance and reliability engineering in the field really is. A small example like having these machines use a medium which some of the younger crew haven't even heard of is a nice reminder of this. Sure maintaining backwards-compatibility has a cost, but so does constantly rewriting everything that already works.

Re: Boeing 747s receive software updates over floppy disks

#19

The article said the floppy drive is kept behind a locked panel. The article doesn't mention if the updates fit on a single floppy or a stack of 20 floppies. I don't see a fundamental problem as long as the data has checksums to make sure that it transferred successfully. I used to get tons of errors on floppy disks transferring data back in the 90's using Sun workstations and PCs. I started making my own checksums t…

I'd assume the data is sized by 1988 standards and fits on a small number of floppies, probably just one.
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