|
Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://itpm.msu.su/LDP/LinuxAdministration/linux-admin-made-easy-13.html
Дата изменения: Sun Apr 18 13:35:41 1999 Дата индексирования: Mon Oct 1 21:59:59 2012 Кодировка: |
Linux is earning a reputation world-wide for its performance and reliability. Nevertheless, no system is perfect, and from time to time you are bound to hit a snag. Fortunately, with uptimes measuring in the months (compared to those measuring in the days or weeks as with NT), such snags will likely be few and far between.
( Under construction :-p )
( Under construction :-p )
(WARNING! SLACKWARE-CENTRIC! NEEDS UPDATE FOR RED HAT!)
How do I actually *use* the emergency boot/root disk set?
Okay, admittedly there may be times when Linux refuses to boot (relax, these occasions are usually rare!) and drastic measures will need to be taken to resolve the problem. This is where the emergency boot diskette can be a real life-saver.
In my own experience, Linux has proven remarkably solid and these kinds of problems just don't exist. ;-) However, I have been faced with the dreaded "VFS: Unable to mount root partition" message, or the "fsck returned error code - REBOOT NOW!" message myself a couple of times -- one was caused by a blunder on my part, and the other was caused by a defective memory chip which caused accumulative problems in the file system.
Problems of this nature are usually caused by the following two situations:
1) You've made some change to your Linux configuration, or you've recompiled the kernel, etc. and the system no longer boots.
2) A power surge/outage, hard drive failure, etc. does something nasty to a critical file or two (or more) thus preventing Linux from booting.
Hopefully if you are faced with a situation like this, you have the following things available to you:
- The boot/root emergency disk set AND/OR - The LILO emergency boot disk AND - A backup copy of your important files -- just in case!
As Linux is developed by members of the Internet community, the best place to get help is probably by posting a message to any of the following newsgroups:
For non Linux-specific topics, there are a variety of groups in the comp.* heirarchy that may suit your needs. Here are just a few of them:
comp.infosystems.www.servers.misc
There are also several resources on the Web that may be useful. Do a web search for "Linux", or visit any of the following:
http://www.linuxresources.com/
http://rufus.w3.org/linux/RPM/
http://www.xnet.com/~blatura/linapps.shtml
http://samba.anu.edu.au/samba/
There are a myriad of mailing lists that may prove helpful in providing answers to your questions as well. These can usually be found through a simple web search (for example, searching for ``linux raid mailing list'' might help you find mailing lists devoted to RAID issues under Linux). Here are some I recommend; to subscribe to any of these lists, simply send an e-mail message to the subscription address listed with the word "subscribe" in the body of your message:
Description of available Red Hat lists: http://www.redhat.com/
Description of available GNOME lists: http://www.gnome.org/mailing-lists/index.shtml
Description of available KDE lists: http://www.kde.org/contact.html
Subscription address: linux-scsi-request@vger.rutgers.edu
Subscription address: linux-raid-request@vger.rutgers.edu
Finally, you may be interested in checking out the following two sites, both of which are my personal "daily must read" favorites. SlashDot covers the latest technology news in general with a definite Linux slant, while FreshMeat provides an up-to-date listing of Open Source applications announcements.
There is an incredible amount of documentation available for Linux and its applications. Most of this can be found on the web and in your local bookstore, but you will probably find that a large quantity of useful documentation is already available to you, having been loaded as part of the Red Hat Linux installation procedure.
The man pages are a must-view when you are trying to figure out how a
command works. For example, if you are trying to figure out how to use
the ``tar'' utility, you could type ``man tar'' and be provided
with a very verbose description of tar including all of its command-line
options.
You can find more general information in the
``/usr/doc/'' directory. Here you will find
subdirectories which include documentation on utilities and commands,
Frequently Asked Questions (FAQ) documents, as well as HOWTO documents
providing good instruction on a variety of topics, such as how to set up
networking, or install support for the Japanese language.
You should also look in the ``/usr/info/'' directory
which contains tutorials on utilities, libraries, and applications such as
emacs.
Finally, you should visit the Red Hat User's Frequently Asked Questions (FAQ) document at http://www.pobox.com/~aturner/RedHat-FAQ/ which contains a lot of helpful information specific to the Red Hat distribution of Linux.