Tivo Question

[dsheli]

Hey,
I love my hacked Tivo. One thing that I forgot to do is upgrade the recording time. It still says 35 hours. If I do the quick up-grade will that mess up any of my hacks or will everything be just fine? In Joe editor, how do you insert a line? When I am editing the start up file I want to put some more stuff in there but every time I hit enter it deletes what was below. I have a new S4040R that I want to hack. When setting up the Ethernet I cannot figure out what the broadcast id is. I just put my gateway address. Once I get my other tivo on the Ethernet I cannot wait to transfer files between them.
Thanks,
David

[RKone]

That's more than one question, but here we go:

I'm not sure if you can expand a current drive easily, you will likely need to back it up and then restore it using the -x option with mfsrestore.

Try using vi, I believe the problem you're having with joe is an interface issue - I think it adds the line, but your display isn't being updated properly. vi works properly (but has a rather arcane method of editing).

Your broadcast number should be the first 3 quads of your tivo's ip address and 255 for the fourth. For example, if your tivo's ip is 192.168.1.5, make your broadcast ip 192.168.1.255

[psxboy]

You know... if nothing else, the Sleeper ISO has certainly exposed a lot more people to the world of IP settings. Hopefully some of them will actually take the time to learn what a broadcast address is for, and how a subnet mask works. ;)

-psxboy

[RKone]

Well he didn't ask about the subnet mask, and unless you normally set up media servers, I don't think you need to know about broadcast addresses - before tivoscripts I've only vaguely brushed up against it once before (ati's AIW cards can broadcast now also).

[psxboy]

I was just speaking in general terms as this post reminded me of the hundreds of other times someone has asked "what's my subnet mask?" or "what do I put in for the broadcast address?"

Before I started actively participating in this forum, I was under the (apparently incorrect) assumption that subnet masks, broadcast addresses, gateways, etc. were all basic TCP/IP knowledge that people learned "all at once". I.E. if you knew what an IP address was (and especially if you've setup your own home network) you knew what a broadcast address was.

(And FYI RK... I don't think ATI's definition of "broadcast" in this context means the same thing.)

-psxboy

[dsheli]

Ok, I am no newb to networking. I have my own web server in my house and setup many networks. I have learned it all from trouble shouting. I have just never come across something that wanted a broadcast ip. That is why I have no clue what it is. What does it do anyway?
David

[psxboy]

The reason you've never had to supply a broadcast address is because most network setup utilities take the IP address you assign to it and the subnet mask and generate the broadcast address from that info.

A broadcast address is an address that you can send data to that every PC on that subnet will receive... for things like DHCP requests, ARPs, RIP, etc. With a simple subnet mask of 255.255.255.0, the first three octets are your network and the last octet is the node, and your broadcast address is x.x.x.255. If your subnet mask were 255.255.0.0, your broadcast address would be x.x.255.255.

Things get a little hairy when you start borrowing bits from an octect for your nodes though. For example, if your IP address is 10.10.1.1 and your subnet mask is 255.255.128.0 then your broadcast address is 10.10.127.255. But if your IP address were 10.10.128.1 with the same subnet mask as above, your broadcast address would be 10.10.255.255.

If you're interested in the subject, I would suggest Googling for "network calculators". The first couple of hits have some nice descriptions of how it all works.

-psxboy