System CRASH

moonstalker · #1 28th April 2008, 12:43 PM

FC8 was running finer than ever with no hassels except a few network issues which were promptly fixed.But just as I was getting the charm of using it.....i had to do a simple reboot as usual.System CRASHes after reboot.
The boot sequence is not completed.My monitor goes standby,when the "mounting local volumes" part shows up....i simply dont have a clue!!!!

A fstab error?? A malicious bug?? Some arbitary scripts running??

Can i get to bring up my box without doing a format?!

Please suggest.

Adesso · #2 28th April 2008, 12:47 PM

Try a reboot with a system rescue... this might get you some joy... but we need info to help you

moonstalker · #3 28th April 2008, 12:57 PM

Thank you for such a prompt reply. Sorry,i am not an expert at command line.I have tried booting the box with a system rescue mode,but it goes to a command line.Please tell what other details do you need to know in order to guide me through this!

Adesso · #4 28th April 2008, 01:01 PM

OK, if you get to a command line on a system rescue, I guess nothing is broken..

What was the last thing you did before the reboot.. Update? New software install, Drivers or something.. ?

Try selecting another kernel from the GRUB boot menu option when you boot.

Try a UPGRADE from the CD, this might also fix some stuff..

More info on your system might help .. like What version of Fedora you are using 32/64bit, the computer parts like Screen card, RAM Hard Drive size, mainborad or model of the PC.. Laptop, Desktop ??

Anything to get an idea of what you are using.. The more you tell us, the better we can help..Just get techinically spesific ..

moonstalker · #5 28th April 2008, 01:14 PM

Thank you.That was a ray of relief from your side.

I was on utorrent(wine).My netstats showed a python entry(possybly system update)which seemed suspicious to me.So i opened a firefox window to do some searching.But it is only then the system froze and i had to reboot and thats that.....zzzzzzz....gone.

And yes i also tried booting another Kernel from the grub,result is all the same.Though i didnt try upgrading from the cd.

I am running a desktop >>FedoraCore8(32bit) on an Intel865GBF,768Mb DDR400,320Gb WesternDigital HDD sataII,Nvidia 6200 Agp Gfx Card with a 17`LG monitor(1152 by 864).

Adesso · #6 28th April 2008, 01:27 PM

Try a interactive boot, and confirm each module, so you can see what is actually killing the box.
Once you know what is killing it, it would be possible to either skips that module, and fix it ..

On a normal boot, hit the I repeatedly until the modules questions start comming up(right after Grub).. then confiorm them one by one with Y until you hit the dead spot..

moonstalker · #7 28th April 2008, 01:30 PM

I have repeatedly tried that,but seems its not taking the "I" as an option.But then again i`ll try it and come back with more info if there is any!

Thank you for your time!Much appreciated.

moonstalker · #8 28th April 2008, 01:44 PM

No luck with the ineractive mode.It simply jumps to the udev boot sequence,the detail there shows the system recognises root,cleans up previous entries,allocates filesystems and then when it jumps to the fourth or fifth(couldnt catch up because it happens very fast)entry which says mounting local volumes---->the monitor signal dies and hence goes to standby

I am at loss of speech.

Adesso · #9 28th April 2008, 01:54 PM

in Grub, try to edit the kernel options, and remove the rhgdm and quite .. then boot.. this should then get you booting without the graphics manager starting.. the trouble might be with the display drivers..

moonstalker · #10 28th April 2008, 01:56 PM

A little hint on how i do that?!Please.And also i would like to mention that the connection dies while detecting local volumes!!

Adesso · #11 28th April 2008, 02:33 PM

OK... at the boot .. wait for the Grub loader.. it counts down... interrupt it with a arrow key.. select the latest version of your kernel, now press "e" go to the second line and "e" again.... at the end of the line it should say something like rhgb quite.... just delete the rhgb and press Enter or "b"... this should start the boot, keep that "i" pressed until you see the firts prompt for udev.. then "y" each service until it dies.. Once you get there.. you will know what service is killing your machine..

I just did a reboot on my own box to test this.. and after 5 minutes of waiting relized that the reset button was stuck .. almost lost my head.. AAaaaagggh PC does not boot .. now what..

hehe ... user error .. >>> ME <<<<<

moonstalker · #12 28th April 2008, 02:43 PM

You are a saver,friend.The last trick did the job for me.

No errors in my case.But one thing i would like to mention here,that,the interactive mode didnt turn up even after editing the kernel option.But one line showed a SELinux policy updation,that took some 6 to 7 minutes.And voila!!!!!!System starts.

So just for the sake of my knowledge,do you think all this hassel was because i opted for an updation of the selinux policy at the next reboot?

And if i gave time to the boot procedure without editing the kernel option things would have been fine and the system might have booted normally?!Please enlighten me.

Also,should i add those lines back at the next reboot?!Or now that i hve successfully booted,could i do it from in here.Please guide.

Once again,Thank you very much.

Adesso · #13 29th April 2008, 10:56 AM

If you just booted the kernel without saving, the old options should still be there, and you have to do nothing, but if you saved, you could add the options again. It looks better if you have the graphical boot instead of all the output that is normally on the screen... just add that rhgb and quite again to the end of your kernel options.. and all shouls be back to normal.

I guess that the selinux policy relable thing can take some time.. so be carefull when you do that gain.. it takes time to relable

I guess that your system was never really broken, it just took some time to relabel the selinux files..

So you can boot as normal again, and all should be well, add the options in your grub if you like, it's your choice.. me personally, I like the non graphic boot, cause I can see what is happening, but it does not look all that great...but is very informative..

I ma really not the expert when it comes to selinux.. actually I have no clue how it works, and normally swith it off... (Bad I know) but it can be a real pain if you don't know what it does ..

Glad to hear that it is working.

Maybe one day I will try to understanf the SELinux.. but today is not the day..

Have fun

moonstalker · #14 29th April 2008, 01:54 PM

Yes,because i did not save the altered kernel options so its still in the graphical mode when i reboot.And believe me,its running better than ever.

Cud you please point me towards the direction in getting to know about the Linux file systems ,directory structures and networking ideas?! May be some video tutorials like CBT Nuggets will help but i really didn't find anything helpful in the CBT Nuggets page.I am looking forward to do the basic troubleshooting like these on my own.

Thanks a million for whatever information,effort and time you have put in for me throughout.I am obliged.