Linux File System

Posted on 2009-12-23
Last Modified: 2013-12-06

I have some Red Hat Linux production servers where Oracle database is installed. Right now we are taking the backup of oracle database right now. As of now we are not taking the backup of OS (including the filiesystems). I would like to know about the following:

1)  Complete OS backup including patches
2)  How to get the details of the applied patches from Linux
3)  How to apply a new patch in limux

Question by:kurajesh
    LVL 5

    Accepted Solution

    Hi Linux backups is very straight forward you just need to know what to backup

         User files and dynamic data [databases] (stored in /home or specially configured   partitions or /var etc).
         Application software (stored in /usr)
         OS files
        Application configuration files (stored in /etc, /usr/local/etc or /home/user/.dotfiles)


    When you say patch what are you referring to ??

    Kernel patches , file system , upgrade etc

    Becareful when you upgrade or patch as you have to ensure your bespoke applications will still work after in your case oracle.

    I usually clone a full working system before carrying out a major update / upgrade

    to search for new patches use the built in package manager

    Yum is good if you already have it setup

    or try update

    you may also want to have a read on RPM
    LVL 10

    Assisted Solution

    rpm -qa
    will list you all softwares installed in system via rpm method
    LVL 1

    Author Comment

    I have veritas netbackup here but I used to take only the database backup in that. I have got another server where I have space to store the backup.
    My prime objective is to have a complete OS backup in case of any disaster and also the actual recovery procedure.

    LVL 10

    Assisted Solution

    normally I'd backup all shares under the / except tmp, proc,sys,dev

    set a script to do a rpm -qa >
    each time before a backup. Keep in mind if you've installed something via some method other than rpm it won't be available in this list.
    LVL 1

    Assisted Solution

    by:Khushal Singh Narooka
    Would recommend to use mkCDRec, its free. you can create a bootable disk (ISO Image) of the running OS including all patches which can be restore in case of disater. I am using it wiht Redhat, CentOS & SuSE and working gr8 for me

    LVL 1

    Author Closing Comment

    Thanks and I will try all the options

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