Slackware :: How To Review Boot Messages
Mar 16, 2010
EDIT: not fully solved; there is (at time of writing) still an issue about bootlogd buffering until the logfile is accessible but that's probably as far as we are going to get for now, until someone peeks into the bootlogd source code.
Is it possible to review boot messages after boot? Kernel messages are available via dmesg (and many are logged early in the rc.M script by the /bin/dmesg -s 65536 > /var/log/dmesg) but many console boot messages are not kernel messages. During boot, messages can be viewed using Shift+PgUp but when the rc.S script finishes, init starts an agetty on tty1 which prints a login prompt. Then tty1 is no longer the console and Shift+PgUp cannot be used to scroll back through the boot messages. Any delayed boot messages do not have effective carriage returns so "marquee" across the screen, one following another, a line below.
Is it possible to leave tty1 as the console by de-configuring the tty1/agetty line in inittab, thus allowing Shift+PgUp to be used to scroll back through older messages and allowing proper horizontal alignment for delayed boot messages? I would try it but the inittab line x1:4:respawn:/etc/rc.d/rc.4 runs /usr/X11R6/bin/xdm and this grabs the first unused tty<n>. The xdm man page and xdm config file comments do not reveal whether it is possible to make xdm use a specific tty<n>.
Another solution may be something like the sysvinit binary that intercepts all console writes and then dumps them to log at the end of the boot process but if it were that easy or useful it would already be done and publicised (wouldn't it?).
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Jul 10, 2010
13.1 - a distro that gets out of the way (review)
[URL]
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Jun 23, 2010
I'm running slack64 13.0. At initial boot i see the two penguins and text from th kernel scrolls past until my root partition is mounted where upon all messages stop until the console prompt or KDM pops up. Everything seems to be operating as normal but i've no idea whats happening during the rc scripts (FS checking, etc). When shutting down though the rc.6/rc.0 script messages appear in the console though.
To my knowledge i've not changed anything that would effect this (just modified inittab for runlevel 4 & tty4,5,6 in runlevel 4).
There's nothing in dmesg but most messages don't get logged there as i understand.
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Jul 27, 2010
Is there a way to run a short mplayer ascii video clip after the boot messages?I've got some video of a shark that I can play with the mplayer ascii feature (mplayer -vo aa -monitorpixelaspect 0.5 file.avi)
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Feb 18, 2011
I'd really like to be able to examine all the information that flys off the top of my terminal when my system boots (off of fd0, the only way I've done it, so far): review of "similar threads" yields nothing; seemingly not a man pages item; have not found any how-to's that cover this; the daemons for logging are third-to-the-last before logon prompt (and still displayed, the ONLY reason I know THAT); seems like it should be a compile-time sw-switch settng (sub-optimal since I'm still not comfortable with compiling kernels); but I was hoping it's already being captured in some log file somewhere that I'm as yet unaware exists. I do realize that if I had a printing console, this would be unnecessary.
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Jun 21, 2011
Look at this /var/log/messages, if you please:
Code:
Jun 20 04:40:01 darkstar syslogd 1.4.1: restart.
Jun 20 04:54:30 darkstar -- MARK --
[code]....
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Nov 25, 2010
Kernel 2.6.21.5, Slackware 12.0
Firefox 2.0.0.20
When sending an LQ post, my browser says "You're about to send information that's not encrypted". OK. I tell him not to show the warning again. But what if I want to encrypt? How do I do it?
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Mar 29, 2010
On RedHat style distroes tty12 show /var/log/messages. How can we implement this feature in Slackware?
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Jul 6, 2010
I am searching for a way to broadcast a simple message from a server to the other machines (clients) on my local network every day at 22:30 (10:30pm) to warn users that the server will shutdown in 30 minutes (energy saving strategy). Basically, I was thinking to add a cron entry ion the server crontab to do so. before I go ahead with that, I tried several ways to accomplish this action. Then I tried simply "wall" and got a text promt to type in my message. At the end I pressed CTRL+D and got a popup displaying my message. So it worked but it was on the server's monitor. How can I send this message to a remote machine? Is wall the proper command to do so?
I also tried using paswordless ssh..It doesnt work. Basically I can login on the remote machine using passwordless ssh but when I issue either kdialog or xmessage, I get error "cannot connect to X server on diaplay 0:0" (or something similar).I tried also ssh 'wall 'message'' but it also says "cannot connect to X server on diaplay 0:0"So far I have several ways but nothing really works..There must be a real way to to that?All machines are Slackware 13.1 based.
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Dec 24, 2010
i know messages like "the system is going down for reboot now" get sent, and even show up in kde when they're sent. can this be done from a command line?
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Dec 7, 2010
I am writing a script using man2html and some man pages cause man2html to crash ie
Code:
gunzip --to-stdout /usr/man/man7/groff_hdtbl.7.gz |man2html -r
will cause a glibc crashdump like so
[code]....
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Sep 22, 2010
I have around 6 email accounts for business & private use that I retrieve and send via pop/smtp with Kmail (Version 1.11.4). But it seems that all my outgoing mail is only sent via one account (say first@gmail.com) even if I select another account for the outgoing I.D field and FROM field. When I look in the sent folder the headers shows the correct sent from account but my recipients headers show they were all sent from first@gmail.com! Ebay keeps bouncing my emails back too as a result saying the email is not registered. It used to work just fine so not sure what is happening. I have tried reinstalling Kmail/kdepim-4.2.4-x86_64-1.txz deleted all the accounts and recreated them but the problem persists.
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Mar 22, 2010
some one using ubuntu 2.5 ultimate speakout about the stability of it
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Nov 26, 2010
I'm having, oddly enough, stability problems on my main slackware desktop. Whenever I try to do certain things, for instance going fullscreen on a flash video, starting regnum online or open arena, it drops out of X into the command line with a few error messages (next time it crashes I'll post the messages). On occasion, it'll do that without any input. Now, there's a few major changes I've had on the desktop since yesterday, chiefly that I've been able to connect it to the net for the first time in a few months. Now because of this, I've been installing plenty of software from slackbuilds, plus flash from adobe (necessary evil). I'm using xfce with some compositing on a geforce Ti 4200 AGP 8x 64Mb with nvidia drivers installed and dual monitors, each now set to 1280x1024 and in twinview, pentium 4 2.8Ghz, 1 GB ram. HDD has a 70GB ext3 slack partition, triple booting with 80GB ext4 ubuntu lucid partition and 40GB ext4 mint isadora.
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Jun 10, 2010
Slackware 12.0 (GNU/linux kernel 2.6) I am said slackware is very stable (I suppose this means it has few bugs). However, every time I run startx to start the graphical interface, for a brief moment I can see (just before the screen is put in graphical mode) a lot of error messages. How can this be? I use slack 12 a lot and have reinstalled this distro many times. However the described behavior always repeats.
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Feb 15, 2011
I've spent some time trying to get my 3G card connection shared over WIFI and despite the number of sites out there I had a lot of problems putting it all together. So I wrote a small guide about it, but due to several issues (time/bandwidth) I can't retest it from scratch.I was wondering if someone could take a look at it and make suggestions or corrections.The idea is to take your 3G data card and turn your WIFI into an access point so you can connect other devices to it for internet access.
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Dec 1, 2010
I posted a completed version of it a while back and just wanted to post the latest stable version. I'm using it as a pet project to teach myself proper BASH scripting, but also to help my wife get .lit e-books onto her Sony E-Reader since it seems to do a better job of converting the files than Calibre(For some reason some of our books won't convert in Calibre and they will with this). I've added some zenity windows to make it just a little more friendly in regards to selecting the file you want to convert. You no longer have to drag it into the terminal window and make sure you've got quotes around it if there's a space. It's also now completely BASH instead of python. I'm a "beginner" programmer/scripter, so some review, comments, and constructive criticism are welcome because everything I know I've taught myself with Google and experimentation.
To install it, just grab the tarball, extract it, make the files executable if they aren't already when you download them, and then run the install.sh file in the terminal. I tried to be very descriptive and informative in the changelog.txt and Readme.txt files as well so I hope those suit their purposes well.
P.S. If you're wondering about the versioning, I just adopted the same philosophy as the Ubuntu community and just made the date the version number. 10.11.30 equals November 30th, 2010.
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Jun 7, 2010
This is a new (Less than one month) old netbook that is just running Slackware 13.1 with KDE.Now, every 10 or so minutes I'm getting a "Battery disconnected/Not found" error and it's insisting I plug in.Now, the battery itself is fine since by ignoring these messages, I'm getting 5-6 hours battery life easily but none the less. It's a concern.It appears to be software related rather than a bad battery.Has anyone experienced this and/or know of a solution?
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Jul 25, 2009
KVM - virtualization
Fedora 11, 32 bit, as guest (VM)
Other guests (VM) - Debian
There is no partition on hard drive
During installation it comes to following page
Installation requires partitioning of your hard drive. The default layout is suitable for most users. Select what space to use and which drives to use as the install target. You can also choose to create your own custom layout.
Drop window
Code:
Use entire drive
Replace existing Linux system
Shrink current system
Use free space
Create custom layout
[uncheck] Encrypt system
Select the drive(s) to use for this installation.
(it is grey out)
Advanced storage configuration
Code:
How would you like to modify your drive configuration?
(check) Add iSCSI target
[Cancel] [Add drive]
What drive would you like to boot this installation from?
(it is also grey out)
[uncheck] Review and modify partitioning layout
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Feb 21, 2011
I thought of leaving a comment below the story, but figured why bother. The main complaint appears to be about the appearance of the desktop, and the graphical installer "feels old." Then he goes on to recommend Trisquel instead as a "better Debian-based distribution" than Debian.
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Jun 10, 2010
Back when I was first learning Linux, one of the questions that I kept wondering about was "what are all these files and directories for?" I couldn't find a resource that would explain them in a digestible manner. Specifically, I was looking for one that would allow me to look at a Linux filesystem interactively, collapsing and expanding folders to look at just the ones I was interested in at the moment. So later, when I got the opportunity, I wrote it.
But despite a ton of research, I'm still not totally knowledgeable on the subject. The most important thing I'm looking for right now is for experienced Linux/Unix people to tell me where I got stuff wrong, and for newbies to tell me how useful it is to them and which things need clarification. I'm also interested in technical and graphical ways to improve usability, like better icons, layout, etc. I know I need to be able to collapse long descriptions, but what would you like to see? The Works Cited list and a full introduction are still on the way as of this writing.
Without further ado: Linux Filesystem Hierarchy Explanation. You'll need a fairly recent browser that can handle XSLT; the actual info is stored as XML, and transformed into HTML with an XSLT stylesheet. This is still a work in progress, and I'll be updating it as the thread progresses.
Finally, would people be interested in collaborating with me on this, as an open-source project? I've never done anything like that, and I'm not sure how much time I'll be able to give it in the future, but I really think this should be continued and expanded.
Edit: Works Cited and decent intro are now in place.
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Mar 6, 2011
During boot-up and shutdown of Fedora-14-x86_64-Live-Desktop.iso live USB, I just see some graphical stuff. What needs to be done so that the screen shows text messages about what's happening during boot-up and shutdown?
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Jun 19, 2011
What /where is the file, that shows boot up messages.
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Aug 3, 2011
I'm getting a boot message that goes by too quickly to read. Is there a way to slow them down?
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Jan 7, 2010
I've enabled BOOTLOGD_ENABLE=Yes in /etc/default/bootlogd on my Squeeze (Upgrade from Lenny) installed on the notebook, but after Retsrat NO bootlog messages in /var/log/boot. Is it a BUG?
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Jul 13, 2011
I have a syslog-ng running and kernel build of 2.6.34.8 I use a syslog API in my program with facility LOG_LOCAL5 and and levels debug err and crit and info. when I ran on the older syslog facility I had everything logged fine as I intended. now I have written these rules into the syslog-ng.conf:
options {
flush_lines (0);
time_reopen (10);
log_fifo_size (1000);
[code]....
the last two rules show my program gnssapp. the result is all debug levels or crit or err levels I don't see any of them !
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May 4, 2010
An issue that has been hassling me for years since I started using Linux (Debian!) is related to the boot messages that quickly scroll on the video during the boot process. The main hassle is related to the fact that I cannot get a log of those messages. The second hassle is due to the fact that with my brand new netbook (Toshiba NB200) I cannot even stop the scroll and go back along the message stream with SHIFT+PageUpDown to understand what's going on. Of course I know that I can get a log of the boot process with 'dmesg' but I get the feeling that the very first lines show some problem I cannot grab at all.
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Oct 5, 2010
When i logged into my desktop, i got a notification that said there was boot messages. I remember trying to find this before in /var/log, so that i could investigate why i couldn't get the nvidia drivers to work (which i now know is because i'm using 14-beta, which has a debugging kernel), but couldn't find it.
Code:
Welcome to Fedora
Starting udev: [ OK ]
[code]....
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Jul 8, 2011
My memory could be failing but I thought there was a tool, possibly in Yast, to access the boot logs in earlier versions. Can't find it now though. Is there such a tool other than console?I should clarify in case I am using the wrong terminology that I seek the log which scrolls up the screen during the booting process. Reason is that I see several errors and warnings there and wish to investigate further.
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Jul 1, 2010
I just upgraded to 10.04 through the Update Manager. During the updated however I got an error telling me that it was unable to install something. Sorry, I can't remember what it was; it didn't stop the updated so I assumed it wasn't that important. Anyways, I don't know if this is because of that error, but during the boot process and when shutting the computer I get console messages. When I boot it tells me that "mounting none on /dev failed No such device" and when I shut down I get these messages.I see this was asked before and that it isn't a big issue, but I'd still like to solve it. The problem is that I'm pretty new to Ubuntu and Linux in general I don't know how to follow the very general instructions given in that thread.
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