Hello, Works fine for me now, but I was wondering... Is there a way to use normal terminal (the monitor, keyboard of the specific server) and also serial redirection at the same time ? When my server restarts, I can see everything on the monitor but also in my ZOC terminal session on my laptop, which is connected to the COM port on that server. It would be easy if you just connect your serial cable to a server and have instant access. The way it is configured now, I only get output on my zoc terminal session and not anymore on the server monitor as soon as grub starts booting.
Grtz, Verus -----Original Message----- From: Miles Fidelman [mailto:[EMAIL PROTECTED] Sent: donderdag 26 oktober 2006 14:16 To: debian-user@lists.debian.org Subject: Re: how can i see booting messages ?? debian wrote: > Hello, > > I still have problems with my new installation. > There is some important information (i think) displayed just after grub > starts booting about the hdd, but i can't see what it is because it goes > to fast and it is too far up to go with CTRL-PageUP. > So, is there i way that i can pause or stop the messages so that i seen > what it is ? > This question seems to get asked at least once a month. About the only thing you can do is use a terminal or terminal program with a good capture buffer. There are a whole bunch of startup messages that only go to the terminal and don't get logged anywhere. If you're setting up a server, you can set things up to use a serial terminal as your console, and then plug in a PC or laptop with a terminal emulator program that can capture all the traffic. If you're building on a desktop PC, it might be a bit harder. There are some references floating around for how to use a serial terminal as a console, maybe start with: http://www.tldp.org/HOWTO/Text-Terminal-HOWTO-17.html http://www.tldp.org/HOWTO/Remote-Serial-Console-HOWTO/index.html I did this recently when building a couple of rackmount servers and it was pretty helpful to capture the traffic. Looking back at my (somewhat sketchy) notes, the basic steps involved: 1. connect both a regular terminal and a serial terminal Note: Depending on what you're using, this may be the most difficult part. In my case, I was using a PowerBook, and had to pull together the right combination of: - USB-to-RS232 adapter (it's not just a cable, there are some level changes going on so these beasts actually have a chip embedded in the cable) - RS232-to-RS232 adapter(s) for gender (male/female) and type (DCE/DTE) I can't remember what I did here anymore, I just keep the properly configured cable in my laptop case. - terminal program: these are surprisingly hard to come by these days - it's not that often one has to plug a dumb tty into a modem anymore - I ended up digging up a copy of Zterm (Mac) - configuring the terminal program (remember word length, parity, stop bits, port speed and such?) 2. finding the right BIOS settings to: - use the serial port (COM2 in my case) if a serial terminal is connected - my server also has an option to use both the serial port and the normal display 3. setting grub to use a serial terminal - somewhere in the grub config (or maybe it was typed to grub - as I said, sketchy notes serial --unit=0 --speed=9600 --word=8 --parity=no stop=1 terminal --timeout=10 serial console I believe these two commands first set up the serial port, then tell grub to use it for the terminal unless it times out in which case it uses the regular terminal. 4. telling grub to start the kernal using the serial console - in my case the boot command is: kernel kernel /vmlinuz-2.6.8-3-686 root=/dev/mapper/rootvolume-rootlv ro console=tty0 console=ttyS1,115200n8 5. going through the startup routine using only command line prompts Hopes this helps. Miles -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] Disclaimer : This e-mail is intended for the exclusive use by the person(s) mentioned as recipient(s). If you are not the intended recipient, please notify us immediately. This e-mail does not constitute any commitment for Sea-Ro Terminal N.V. or its subsidiaries except when expressly otherwise agreed in a written agreement between the intended recipient and the originating subsidiaries of Sea-Ro Terminal N.V. Sea-Ro Terminal and each of its subsidiaries each reserve the right to monitor all e-mail communications through its networks. This mail has been checked for viruses by Symantec and Trend Micro.
