Date: Fri, 16 Apr 2010 16:26:15 +0200 From: Polytropon <freebsd@edvax.de> To: Chuck Swiger <cswiger@mac.com> Cc: Jessie Xu <Jessie.Xu@cryptologic.com>, freebsd-questions@freebsd.org Subject: Re: console no responding to key in. Message-ID: <20100416162615.f007e1b0.freebsd@edvax.de> In-Reply-To: <F1A3A6A2-70A8-4D2C-BFA9-1ADA578268E9@mac.com> References: <D751E6500ECA284380F03CED520237EB01A9F394@BLACKJACK.cryptologic.com> <F1A3A6A2-70A8-4D2C-BFA9-1ADA578268E9@mac.com>
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On Thu, 15 Apr 2010 14:15:24 -0700, Chuck Swiger <cswiger@mac.com> wrote: > On Apr 15, 2010, at 1:26 PM, Jessie Xu wrote: > > I must fix the problem since I need console login with root. Any insight > > on this? thanks. Our machines are Dell PowerEdge 2650 (2U rack mountable) , come with > > Video port, PS2 keyboard/Mouse ports, and two Serial ports. -- I also > > tried the serial ports for console access, no lucky. > > PS/2 isn't a hot-pluggable interface. On older hardware, you > can blow a fuse on the motherboard by trying to do so while the > machine is on, although newer equipment uses a polyfuse (aka > PPTC or resettable fuse) to avoid permanent damage. An important advice! > If there was no keyboard there initially, then the hardware > may never attempt to use one added later, short of a power-cycle. If there was no atkbd: at boot time, attaching it later on will not introduce it to the system. As you said, Chuck, it may even destroy hardware to try to do so, leading to the fact that you have a server with *no* AT keyboard at all. I've already seen that with older systems not using a resettable fuse. > In such cases, trying a USB keyboard instead might work better. Jessie Xu initially said he was on FreeBSD 4. If I remember correctly, what you suggest isn't possible in the default configuration. Maybe a USB keyboard will be detected, causing a ukbd: message in the log, but that's all - no input from it. You need to type "kbdcontrol -k <device>" to switch over from the default AT keyboard to the USB keyboard, there's no kbdmux in 4. As for servers, trying to connect via serial console seems to be the standard way. Otherwise, attach keyboard and monitor to the system while the power is off. REALLY OFF (pull mains plug to be really sure - see PS/2 defect mentioned above). -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...
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