Sun Server Restoration (Update) - Computerphile
Skills:
Systems Design Basics80%
Key Takeaways
The video demonstrates the restoration of a Sun server, including troubleshooting and configuration of a scuzzy emulator, network boot, and internet connection.
Full Transcript
so a couple of months ago we um did a video on the old Sun 3160 that I'd found lying around in the department and trying to get it to work and we sort of left it to the point where it was making an awful racket now we worked out that the noise was actually coming from the old hard diss which sound more like sanding devices rather than actually Harding so I suspect their shots so we took them out and if we turn it on now it's still noisy but it's a it's got a less of a sort of angle grind effect to it and we've actually now got it to the point where short of installing the operating system it's still booting what we've done is running in it now one of these which is a scuzzy emulator which uses a Micro SD card to act as the hard disk so I've set that up to actually act as a hardest interestingly the way I've set that up is I use an ulator on the Mac to emulate the hardware and installed the first part of the operating system on that so that's sort of working now and I can get it as far as booting and get it to boot into the preliminary stages and even get it able to Ping out onto the local network which of course is connected to the internet so it's actually on the internet so we're just booting up using the Falcon as the terminal emulator and in a second hopefully it'll ask me to enter the menus and I should should be able to get it going so I'm now into the boot menus I'm going to come out of these and return to the Monitor and I'm now going to boot it off the scuzzy emulator so boot SD not comma 1 comma not so it's starting to boot I think oops no so it's actually now trying to do a network boot which is not what we wanted to do if you remember the right boot command we can actually get it to boot and you'll see it's now booting into scy disc one which is what's being emulated Communications have changed it's now moved from one serial protocol to another so I just have to change the settings for the port to seven bits rather than eight bits and I'm now at the installer prompt haven't installed the whole operating system yet but the machine's booting so it's just a matter now of installing everything and it would work and if we look the uh internet connection is up so we can actually set this with a actual IP address so we can say we want if config uh i z to be up and want be 23.5 net mask set that up and it's not picking anything up so obviously I need to plug the other end of the network cable in helps if you plug your internet connection in so we're now going to plug the internet connection in under the floor uh we'll pull that one out oops that was the uh Cloud do you want to check these lights flashing on the uh little box so we've actually got a little converter box here which is converting the 10 Bas T coming out of that into the AI connector for the Sun and we got a link and we got power and so on so hopefully I should be able to bring that up we got power and so on so hopefully if config i0 has got an IP address now so hopefully I should be able to Ping the router got no ping installed tell net I have any IP stuff what do I have this is a very minimal installation so far we normally install the whole thing so I don't even know if I got anything I can use to test the internet connection not much there tftp perhaps nope no but if I do go to another machine assuming this isn't the one I unplugged um I should be able to Ping that IP address no I can't maybe this is the machine I unplugged it worked the other day anyway so that's now up and running nothing getting there we just killed it it's almost like the adapter's died no joy so no joy there um it seems actually that the converter seems to all the lights have gone off on it so um not quite quite sure what's happening there we'll keep uh Resto restoration and keep it posted I think the next St will be to try this on another device see if we can get this working and then see whether it's a fault with this or whe it's a fault with the actual the power going to it but it doesn't seem to work any of the network card so um I suspect something wrong with this here is encrypted once with K3 it's encrypted another time with K2 and then it's encrypted a final time with K1 now let's think about what that means um it means that only this it's a dirty job but someone's got to do it
Original Description
It's three steps forward and two steps back as Dr Bagley continues his quest to restore the venerable Sun server...
http://www.facebook.com/computerphile
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This video was filmed and edited by Sean Riley.
Computer Science at the University of Nottingham: http://bit.ly/nottscomputer
Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
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