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Top Forums UNIX for Dummies Questions & Answers Information about Unix System Administration Post 302304589 by hpicracing on Monday 6th of April 2009 09:10:37 PM
Old 04-06-2009
Quote:
Originally Posted by reborg
This was a more generic comment than what you seem to have understood. To borrow a 'trade' term, measure twice, cut once. Make sure that before you do something in the real world that it is the right thing. We all do things to our own systems that we would never consider doing on production systems because all it costs us is a little time if it goes bad. On the other hand that little bit of time is VERY expensive if it happens on mission critical systems or ones where there are a large number of users impacted.

Learning to use and administer your own Linux/Solaris is not the same as being able to deal with the types of issues that can on a large Unix system. As a really simple example a reboot on a pc will take a couple of minutes but a reboot on a large unix system can take a long time ( I have known fully populated SunFire 6900s take an hour or more to reboot )



For training, all the vendors have information about their education services on their websites, you can often find third parties that give adequate if not quite equivalent course.

The vendor websites will also have info on certifications.
I was guessing things wouldn't be the same administering a personal Linux/Solaris vs dealing with the issues on large Unix systems. Basically, I'm just trying to get started with learning about Unix. What do you recommend for starters(learning from linux-wise)?
Thanks
 

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reboot(8)						      System Manager's Manual							 reboot(8)

Name
       reboot - automatic reboot procedures

Syntax
       /etc/reboot [ -n ] [ -q ]

Description
       The  ULTRIX  system is booted by loading a kernel image, usually into memory at location zero and transferring to zero.	Because the system
       is not reenterable, the kernel image must be read in from disk each time the system is bootstrapped.

       When the reboot of a running system is desired, is normally used.  If there are no users, can be used.  The command causes the disks to	be
       synced,	and  then  a multiuser reboot is initiated.  The system is booted and an automatic disk check is performed.  If the procedure suc-
       ceeds, the system is then brought up for the users.

       The system will reboot itself after a power failure or after a crash, provided auto-restart is enabled on your system.  A consistency check
       of the file systems will be performed and, unless the check fails, the system will resume multiuser operations.

Options
       -n   Prevents the disks from being synced.

       -q   Reboots quickly and ungracefully, without shutting down running processes first.

Files
       System code

See Also
       crash(8v), fsck(8), halt(8), init(8), newfs(8), rc(8), shutdown(8)

																	 reboot(8)
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