OpenSUSE Install :: Access Fsck Through Serial Console?
Dec 22, 2009
I am looking for a solution to administer my remote server running SUSE LINUX 10.1 (X86-64) - Kernel 2.6.16.13-4-smp. I have made changes to server and is able to see the boot process and also able to login to system through serial console.
My question, will I be able to administer the server through serial console incase if my root partition is corrupted and system has gone to maintenance shell(or root shell).
Also is there way to go directly to maintenance shell from grub(not talking about single user mode). I want to go maintenance shell where / partition is not mounted.
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Jun 20, 2010
I am trying to pxe boot ubuntu 10.04.When it boot up,it doesn't show up login prompt from serial console ttyS0, Why ttyS0.conf job isn't invoked automatically ? is there anything wrong with configuration?
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Oct 7, 2010
I've got a home server running ubuntu 10.0.4. It have no monitor or keyboard. So I want to access it from a serial console. (I use SSH currently but if something goes wrong, I need to be able to do something... so serial console seems a fine thing). OK, so on the server, I tell grub to output everything on ttyS0 and opened a getty on ttyS0. On the client side (Laptop running Ubuntu 10.0.4 with pl2303 USB to Serial adapter) I use Minicom.
Home server restart:I see grub menu, linux kernel messages, login prompt. But, I can't do anything:In grub or at the login prompt, no key press is recognized by the server.I've got write permission to /dev/ttyUSB0. I tried a different getty (mgetty)with no success.I stopped the getty on ttyS0 on the server. And run minicom.
From the server's minicom, if I type something, it appear on the client screen. From the client's minicom, if I type something, some garbage appear on the server screen :(One of this things for each char typed). If I short-circuit pin 2 and 3 of the client serial port, it echoed what I type. The two serial ports are connected with a nullmodem cable. (seems to be a full handshaking cable). Of course, same serial port config for both minicom, grub and getty. Hope I'm understandable enough. (English not my primary language). Can somebody help me make this *$*#! serial console working right ? I'm on it for 10 hours now with no success...
Edit : I nearly forgot to tell you I had to update the standard ubuntu kernel to 2.6.34-020634rc1-generic because there was a bug in the pl2303 driver in the stock kernel (2.6.32-25-generic) which prevented me from doing anything (even receiving).
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Jun 20, 2010
I am trying to pxe boot ubuntu 10.04
grub config:
Code:
title Linux NFS
dhcp
root (nd)
kernel /vmlinuz-2.6.34 console=ttyS0,9600 root=/dev/nfs nfsroot=192.168.1.1:/home/nfsroot ip=dhcp rw
initrd /initrd.img-2.6.34-pxenfs
[Code]....
Why ttyS0.conf job isn't invoked automatically ? is there anything wrong with configuration?
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Aug 21, 2015
I have a dell poweredge server. In the bios, it has the option to redirect the screen to the serial port. There is also the check box "redirection after boot" which from what I understand will let me to continue to use the serial port attached to a terminal as if it was the main VGA monitor with a keyboard attached.
When I start the machine up, everything goes as expected, I see the output from the bios on my serial terminal, until debian actually starts booting. It all goes blank. If i attach a monitor i can see it is indeed booted and waiting at the debian login prompt. What should I do from here? I was under the impression that if i enabled "console redirection after boot" that the os would be none the wiser and i could continue using the serial console as the main screen as needed, but that does not seem to be the case.
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Jan 14, 2011
i was using a serial console program (not minicom) two weeks back but took a break and have no idea what it is! man, it was awesome, too. it had a nice gui, similar to hyperterminal...and from what i think i remember it came packaged with f14.
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Apr 16, 2009
I configured the serial consol on centos5 as follows
# dmesg |grep tty
Kernel command line: ro root=/dev/VolGroup00/LogVol00 console=tty0 console=ttyS0,9600n8
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A[code]......
But I could not consol Centos server from my labtop (win xp) Is there missing or wrong configurations ?
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Feb 23, 2011
I have installed KDE and all the software for it to run on my server through the serial console but when I go and run "startx" I get the following and KDE doesn't start running.
root@u15434060:~# startx
X.Org X Server 1.7.6
Release Date: 2010-03-17
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-28-server x86_64 Ubuntu
[Code].....
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May 28, 2011
Is there a way to get console output over a serial (COM) port? I have a box that I use as a NAS, DNS, DHCP and mt-daapd server, I don't have a spare monitor and it is not worth buying one just to use it once or twice a year.
I found this guide [url] but it doesn't work with Natty
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Apr 17, 2010
My openSUSE 11.2 system has periodic running of fsck disabled for ext4 filesystems (Maximum mount count = -1, Check interval = 0). What is the reason for this? Is it because fsck is not necessary on a periodic basis with ext4, and only necessary when errors are detected? Or is it because fsck has problems working on ext4 filesystems?
The ext3 filesystems do have it set (Maximum mount count = 500, Check interval = 5184000 (2 months)). I would like to know why fsck is not set to be activated for ext4.
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Dec 16, 2009
I am trying to connect to a cisco console port using the usb to serial converter. I am using minicom and I changed me setting to reflect the USB converter cable, but it isn't working. I have set my baud rate to 9600, 8 data bits and no parity. Minicom acts as if it is connected (it doesn't give any errors), but there is nothing on the screen and nothing happens when I type. Also, I use the tail command and it sees the usb connector connected when I unplug it and plug it back in.
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Jan 18, 2011
I am trying to connect to serial console, local one, just to verify than it works, is is possible?Well, I configure serial console
Code:
# ttyS0 - getty
#
# This service maintains a getty on ttyS0 from the point the system is
# started until it is shut down again.
[code]...
It is started, now I am trying to connect to the console via minicom, is it possible from machine where the console is running?If not, how could I check it remotely?
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Apr 28, 2010
I was running 11.0 and it stalled in the middle of a number of updates. On reboot I now get (if I remember correctly) Error 15: File not found.I managed to get my hands on a 11.0 live cd and started trying to fix grub. However, when I try mounting the harddrive using "mount /dev/sda1" I got
Code:
can`t find sda1 in /etc/fstab or /etc/mtab
"mount /dev/sda1 /mnt" gives
[code]...
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Aug 7, 2010
I got three times fsck failure during system booting, fixed issue by reinstall whole suse last two times, this time I really do not want reinstall.
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May 10, 2010
I'm trying to set rxtxSerial to work so a Java app has access to a serial port (via SiLabs CP210x driver, port /dev/ttyUSB0). When I use update-alternatives --config java, there are 3 alternatives which provide `java'. I have tried openJDK and Sun. Both fail but with completely different messages.
[Code].....
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Feb 2, 2011
Tried to install Gnome after the minimal server (console based) install.I would like to install a graphical GUI now What to do? wich packages? tried zypper gnome-desktop (or something similar) but it wasn't enough.
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Dec 23, 2009
I'm installing OpenSuse 11.2 on some systems. Unfortunately the only mouse available is a serial mouse. Hence the installer doesn't recognize the mouse.And it is somewhat cumbersome using the TAB and ARROW keys to navigate the graphical installation.Does anyone know of a boot option I could use to get OpenSuse's installer to recognize a serial mouse ?
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Feb 27, 2009
I want to install a TUSB3410 USb to serial port device on suse 10.3.
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Mar 12, 2011
For those who need or want to install the latest ATI proprietary driver (Catalyst 11.2) right after a fresh 11.4 install - and might not look for solutions in the development subforum.In order to compile the module, I installed the kernel sources and the pattern devel_basis. I normally use most packages in this pattern, so I install it by default from other scripts. While running atiupgrade on a fresh install, I was surprised by the number of packages getting installed with that pattern.Please report if it doesn't work. (like aticonfig initial failed to add a fglrx section for some reason).Take a look at the atiupgrade thread in the development forum: Upgrading ATI driver with atiupgrade.
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Feb 25, 2010
I turned on my laptop at work this morning and it booted up into console mode! Rebooting and booting into Failsafe Mode do nothing...
It reports that it has reached Runlevel 5, but I can't get into the GUI. I have tried to run "startx" which works (Sort of) but I have no mouse or keyboard control. Same goes for if I run "sax2 -r -m 0=radeon" and I have to hard power off the machine to get out of there.
If I try to load the vesa driver, it fails and the SaX.log tells me:
(II) VESA(0): Totl Memory: 256 64KB banks (16384kB)
(EE) VESA(0): No matching modes
(II) UnloadModule: "vesa"
[Code]....
I have renamed the xorg.conf file and rebooted, but come to the same place...
Nothing reports to have failed on bootup, so I have no clue where to start trouble shooting. It does tell me though that there were "Skipped features: boot.cycle". Is this the problem area?
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Apr 12, 2010
After upgrading from opensuse 11.1 to 11.2 I get the following error messages while booting the system caused by the initial filesystem check routines:
ERROR: Couldn't open /dev/null (Too many open files)
ext2fs_check_if_mount: Too many open files while determining whether ... is mounted.
fsck.ext3: Too many open files while trying to open ...
I found a new version of the e2fsprogs at the OBS package claiming to fix this problem. But installing this new version did not solve my problem.
Here some information about the affected system:
Operating System:openSUSE 11.2 (i586)
Installed e2fsprogs:e2fsprogs-1.41.11-4.1.i586
Number of LVs:35 (all ext3)
I can only boot if I comment out some of the filesystems in my /etc/fstab. It seems that the number of filesystems must be less or equal 32.
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Sep 25, 2009
When I do a forced fsck, I would like to have a log file to look at after boot.
When I check /var/log/ there are no files there with fsck output
I've run force fsck in these ways:
shutdown -rF now
-and-
touch /forcefsck
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Jan 5, 2011
i'm using opensuse 11.3... sometimes i listen to a music from videos.. but, when i switch to another console (ctrl+alt+f1-5), music stops.. why? what will happen with other applications (database, etc) that work in a background?
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Apr 27, 2011
ive been looking through several online documents and forum posts but i cant get a clearcut answer on how to set up serial port acces in ubuntu 10.04 (server).
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Feb 11, 2010
During boot-up of openSUSE 11.2 (dup'd from 11.1; default runlevel 3) the following message appears:
Code:
My question now: Is there a way to tell SUSE to set the above mentioned keymap using UTF-8 encoding instead of assuming ISO-8859-15?
The few Google search results (~7) on this topic also seem to indicate that this is a 'German-only' problem because it only seems to appear when setting German keymaps.
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Sep 17, 2010
I could not solve examining the start and stop scripts. When I boot (default runlevel 5) my system all log messages are displayed on /dev/tty1. After the boot process has finished and kdm is started no more console messages are displayed on /dev/tty1. Instead all console output is redirected to /dev/tty7. When I change the runlevel from 5 to 3 boot.msg shows
Code:
Changing back to runlevel 5 gives
Code:
Why kdm redirects console output to /dev/tty7 instead of /dev/tty1?
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Dec 28, 2010
I installed OpenSUSE 11.3 in text only mode and on 1st console (tty1) I see background (wallpaper) and logo at upper left corner: I know that I can to disable this splash permanently (menu.lst) or temporarily ('echo 0 > /proc/splash'). How I can:
1. Change the background (/etc/bootsplash/themes - is this here?).
2. Change the logo on my picture
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Jun 11, 2011
I have an electricity issue i.e Electric Power stops ocassionaly (Load Shedding). If the system was running when electricity went. But when the power comes back, the system starts and opensuse stops before login screen on console screen where it requires root password and then fsck for filesystem. Is there anyways to avoid it?
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Jun 27, 2011
I have a VM based on SUSE 11.3 that boots into a console in run level 3. I am used GNOME so I am trying to get it installed but not having any success. I don't know a lot about the VM as I got it 2nd hand.
So far I have gone into YAST and installed gdm and all the dependencies. I have changed from Run level 3 to 5.
When I run startx I get
xauth: creating new authority file /root/ /serverauth.15072
/etc/x11/xinit/xserverrc: line 56: exec: X: not found
giving up
xinit: No such file or directory (error2): unable to connect to X server
xinit: No such process (error3): Server error.
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Aug 10, 2011
I'm relatively new to Linux and to openSUSE. I've been using 11.3 as the OS on my home server for awhile using a GUI (Gnome). I recently created a new server which is much more powerful and would like to get serious about learning the ins and outs of the system. I've learned some basic bash and would like to install 11.4 on the new server. I have two questions about this. The first is: does it add any system overhead if I install KDE but set the default runlevel to 3? I know that running the GUI takes up system resources, but I'm new enough to the system that I'm not 100% comfortable yet not having a GUI backup. On the other hand, if having a GUI installed eats up resources (other than the HDD space for installing it) even if I'm only using the system in runlevel 3, then I think I'll forgo KDE and install it as text only and just bone up on bash.
My second question is: is there a file I can edit to customize the runlevel 3 console? I just installed 11.4 on my HP Mini using KDE but defaulting to runlevel 3, and I really like the background picture and little SUSE lizard at the top of my console. Is there a way to change the background picture and logo at the top? It's probably a little juvenile on my part to want to customize this but Linux is all about choice right?
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