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boojummy
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Joined: 21 Oct 2003
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PostPosted: Tue Jul 13, 2004 6:06 pm    Post subject: Serial console connected to a Mac? Reply with quote

Anyone have any idea how to connect serial console output to a Mac? I have an x86 OpenBSD box and an OpenVMS (VAXstation 4000/60) box that can both output to serial console, but how can I capture that on a USB-only Mac? I have a USB-to-RS232 converter (I even have an RS-232 to DECConnect (MMJ) converter), and I should have a null modem cable around somewhere. But all of that is beside the point, since I haven't the faintest idea of how to actually do this in Linux.

Anyone have experience with this?
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porodzila
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PostPosted: Tue Jul 13, 2004 10:13 pm    Post subject: Reply with quote

you have to enable support for a serial console in the kernel, then there is something else you have to do, but I dont know what it is.
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boojummy
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PostPosted: Tue Jul 13, 2004 10:42 pm    Post subject: Reply with quote

I was under the impression that enabling the serial console in my kernel config was so that I could display a serial console *from* this machine on another machine or terminal. What I want is simpler, I think: display a serial console *from another* machine (e.g., my OpenBSD router) on this machine. Am I mistaken?

If you'll excuse the choice of OS in the example... in Windows, I can display the serial console from the OpenBSD box simply by connecting the two machines and launching HyperTerminal. I'm looking to do much the same thing in Linux... only this machine is further complicated by the fact that I would be converting USB to serial somewhere in there.

Interestingly, on the note of a serial console *from* PPC, the OpenBSD FAQ says that it is not possible on a lot of PPC hardware. I'm assuming that this is because the machines lack serial ports? http://www.openbsd.org/faq/faq7.html#SerCon
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porodzila
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PostPosted: Tue Jul 13, 2004 10:57 pm    Post subject: Reply with quote

oh, I dont know, i would just ssh.
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billbrasky
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Joined: 21 May 2004
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PostPosted: Wed Jul 14, 2004 5:01 am    Post subject: Reply with quote

Well, assuming you can get some sort of serial port (USB, PCI, or otherwise) you should get a device like /dev/ttyS0.

I use minicom to connect to my RS/6000 running gentoo (headless; no video card at all) from my other RS/6000 running AIX (w/head).

It's a modem program, but you can configure it to use the serial port without initializing a modem.
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cselkirk
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Joined: 09 Jun 2003
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PostPosted: Tue Jul 20, 2004 8:05 pm    Post subject: USB Serial Adaptor Reply with quote

The Keyspan USB Serial Adaptor works in both Linux and MacOS X, with the kernel driver, and Keyspans USA-19H* driver(s), respectivly. The addaptor plus driver, and as the previous poster mentioned, minicom, should get you on any serial line.
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