No, really, it's a hardware problem
Nov. 19th, 2007 09:43 am![[identity profile]](https://www.dreamwidth.org/img/silk/identity/openid.png)
I had to call Sun Microsystems today for a 420R with a serial port that's not accepting input, preventing us from fixing a server with a sick /var. It's clearly a hardware problem, we can see output from the serial port but can't give any input. Generally Sun has the best tech support in the world, especially if you have the lucky special magic corporate support number service, which we do.
me: The serial console doesn't accept any input. I can't break out of the boot, and I can't type the root password to proceed into single-user mode when it prompts me.
Sun guy 1: Try sending a stop-A to break out of the boot.
me: Right. Doesn't work, because it's not accepting any input.
Sun guy 1: Oh. Well try putting a CD in and do a boot cdrom -s.
me: Can't type boot cdrom -s, because it's not accepting any input.
Sun guy 1: Oh. Well try pulling the serial connector during the boot, that may force it into the ok prompt.
me: Unless the serial port isn't accepting input. But I'll go try that.
I call back:
me: Ok. Didn't work. It's still not accepting any input.
Sun guy 1: Oh. Hmm, I can't think of anything else to try.
me: I can; try sending me a field engineer to fix this broken serial port.
Sun guy 1: Let me get another engineer to look at this.
(hold music for 3 minutes)
Sun guy 2: So, I don't have the full history on this. Is the serial port not working at all?
me: No, it's sending output, but not accepting any input. I have tried sending a break during the boot several times, nothing. Tried pulling the serial connector, nothing.
Sun guy 2: And the dumb terminal you're using works on other machines?
me: yes.
Sun guy 2: Well it's clearly hardware then. We'll send a field engineer to look at it.
NOOOOOOOOO, really? Why didn't I think of that? Like, an HOUR ago.
me: The serial console doesn't accept any input. I can't break out of the boot, and I can't type the root password to proceed into single-user mode when it prompts me.
Sun guy 1: Try sending a stop-A to break out of the boot.
me: Right. Doesn't work, because it's not accepting any input.
Sun guy 1: Oh. Well try putting a CD in and do a boot cdrom -s.
me: Can't type boot cdrom -s, because it's not accepting any input.
Sun guy 1: Oh. Well try pulling the serial connector during the boot, that may force it into the ok prompt.
me: Unless the serial port isn't accepting input. But I'll go try that.
I call back:
me: Ok. Didn't work. It's still not accepting any input.
Sun guy 1: Oh. Hmm, I can't think of anything else to try.
me: I can; try sending me a field engineer to fix this broken serial port.
Sun guy 1: Let me get another engineer to look at this.
(hold music for 3 minutes)
Sun guy 2: So, I don't have the full history on this. Is the serial port not working at all?
me: No, it's sending output, but not accepting any input. I have tried sending a break during the boot several times, nothing. Tried pulling the serial connector, nothing.
Sun guy 2: And the dumb terminal you're using works on other machines?
me: yes.
Sun guy 2: Well it's clearly hardware then. We'll send a field engineer to look at it.
NOOOOOOOOO, really? Why didn't I think of that? Like, an HOUR ago.