On 04/12/2011 04:09 PM, Igor Chudov wrote: > I used Linux since 1995. I do not personally see the point of having /usr > mounted separately. > > Igor
Years ago, way back when Gene was a young feller, the /usr partition was (and still is actually, though on some systems /usr/local competes with this pretty well) thus: "/usr usually contains by far the largest share of data on a system. Hence, this is one of the most important directories in the system as it contains all the user binaries, their documentation, libraries, header files, etc.... X and its supporting libraries can be found here. User programs like telnet, ftp, etc.... are also placed here. In the original Unix implementations, /usr was where the home directories of the users were placed (that is to say, /usr/someone was then the directory now known as /home/someone). In current Unices, /usr is where user-land programs and data (as opposed to 'system land' programs and data) are. The name hasn't changed, but it's meaning has narrowed and lengthened from "everything user related" to "user usable programs and data". As such, some people may now refer to this directory as meaning 'User System Resources' and not 'user' as was originally intended." For further reading: http://tldp.org/LDP/Linux-Filesystem-Hierarchy/html/usr.html Back in the day when we didn't have 500 GB hard drives, the /usr partition could consume a lot of bits and bytes, and would and could fill up the HD. If that happens in your root partition, the machine chugs to a stop. if the disk is full, the OS can't write t the HD any more. So, the solution then was to give /usr it's own partition and mount it outside of root. And that was usually done with the /var partition too, since that partition was where the logs were written to, and if you had a runaway log, it too would bring the system to it's knees. Mark ------------------------------------------------------------------------------ Forrester Wave Report - Recovery time is now measured in hours and minutes not days. Key insights are discussed in the 2010 Forrester Wave Report as part of an in-depth evaluation of disaster recovery service providers. Forrester found the best-in-class provider in terms of services and vision. Read this report now! http://p.sf.net/sfu/ibm-webcastpromo _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
