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backup with ufsdump - Linux / Unix Administration

Is it possible to use ufsdump to do backup from a user's account instead of root? I don't have root privilege, but I would like to do a daily incremental backup on a filesystem (e.g. /u1) to a NFS volume (e.g. /nfs/backup) that I have write access. /usr/sbin/ufsdump 5uf /nfs/backup/u1.dmp /u1 If ufsdump is not an option, can you recommend one that is proper for the task mentioned above? Thanks, JC...

  1. #1

    Default backup with ufsdump

    Is it possible to use ufsdump to do backup from a user's account
    instead of root? I don't have root privilege, but I would like to do a
    daily incremental backup on a filesystem (e.g. /u1) to a NFS volume
    (e.g. /nfs/backup) that I have write access.

    /usr/sbin/ufsdump 5uf /nfs/backup/u1.dmp /u1

    If ufsdump is not an option, can you recommend one that is proper for
    the task mentioned above?

    Thanks,
    JC
    JC Guest

  2. #2

    Default Re: backup with ufsdump

    JC <jingchenzhou> wrote:
    > Is it possible to use ufsdump to do backup from a user's account
    > instead of root? I don't have root privilege, but I would like to do a
    > daily incremental backup on a filesystem (e.g. /u1) to a NFS volume
    > (e.g. /nfs/backup) that I have write access.
    > /usr/sbin/ufsdump 5uf /nfs/backup/u1.dmp /u1
    > If ufsdump is not an option, can you recommend one that is proper for
    > the task mentioned above?
    > Thanks,
    > JC
    This is usually possible if :
    1/ some group "operator?" is allowed read access to the raw-disk
    2/ the user is a member of group "operator"

    ( cant speak for solaris, but it works this way in *BSD)

    --
    Peter Håkanson
    IPSec Sverige ( At Gothenburg Riverside )
    Sorry about my e-mail address, but i'm trying to keep spam out,
    remove "icke-reklam" if you feel for mailing me. Thanx.
    phn@icke-reklam.ipsec.nu Guest

  3. #3

    Default Re: backup with ufsdump

    JC <jingchenzhou> wrote:
    > Is it possible to use ufsdump to do backup from a user's account
    > instead of root? I don't have root privilege, but I would like to do a
    > daily incremental backup on a filesystem (e.g. /u1) to a NFS volume
    > (e.g. /nfs/backup) that I have write access.
    > /usr/sbin/ufsdump 5uf /nfs/backup/u1.dmp /u1
    It is possible but you will need read access to the character special
    device for that file system which usually means you have to belong to
    group sys. But having read access to the file system's special device
    file also makes it possible to bypass unix file permissions and read
    ALL files on the disk. Likely, you won't be allowed to do that by
    site's system administrators.
    > If ufsdump is not an option, can you recommend one that is proper for
    > the task mentioned above?
    Use Solaris tar (it does not have ingremental backup option however),
    cpio, GNU tar or star (the last three can be used for incremental
    backups)

    --
    Akop Pogosian

    This space has been accidentally left blank.
    Akop Pogosian Guest

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