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#!/bin/bash
# |
# | Service Performance script, August 1st 2011 by sea
# |
# | This script is written with best intention to help, 
# | but there is NO warranty and I deny ANY responsiblity
# | that may or may not affect your system.
# |
# | Lisence:        GPL v3
# | Author:            Simon A. Erat (sea)
# | Date Created:    2011 August 1st
# | Date Changed:    2012 May 10
    script_version="0.5"
# | Resource URL:   
# | Release URL:    
# |
# | Variables
    etc=/etc/systemd/system
    lib=/lib/systemd/system
    FORBIDDEN_ITEMS="
        .boot.mount
        .media.mount
        .home.mount
        .remount-rootfs.service 
        .sys-fs-fuse-connections.mount
        .systemd-remount-api-vfs.service
        .systemd-tmpfiles-setup
        .udev-trigger.service
        .irqbalance.service
        " 
        # To disable any of the above service/mount may result in an unusable system!
    USEFUL_services="
        .systemd-readahead-collect
        .systemd-readahead-replay
        .mcelog
        "
    toDisable="
        avahi-daemon
        livesys
        livesys-late
        sendmail
        sandbox
        udev-settle
        ip6tables
        "
    toDisMount="
        sys-kernel-security
        sys-kernel-config
        sys-kernel-debug
        dev-mqueue
        dev-hugepages
        "
# |
# | Input
    if ! ask "Do you have SCSI devices?"
    then    toDisable="$toDisable
        iscsi
        iscsid"
    fi
    if ! ask "Do you have any virtual, software or physical RAID, OR are using LVM?"
    then    toDisable="$toDisable
        lvm2-monitor
        mdmonitor
        mdmonitor-takeover
        fedora-loadmodules
        fedora-storage-init
        fedora-wait-storage
        fedora-storage-init-late
        "
    fi
    if ! ask "Do you use a NAS (smb/nfs)?"
    then    toDisable="$toDisable
        netfs
        nfs-idmap
        nfs-lock
        var-lib-nfs-rpc_pipefs
        "
    fi
# |
# | Outout
    sT "sea Service tweaks ($script_version)"
    sE
    sE "Use at your own risk!"
    press 
    sE "Going to disable these services:"
        echo "$toDisable"
    sE "As well as these mounts:"
        echo "$toDisMount"
    sE "-------------------------------"
    for service in $toDisable
    do        sP "Working with service: $service" "$PROGRESS"
            if [ "." = "${service:0:1}" ] || [ ! -f $etc/$service.service ]
            then    sE "Not found service: $service" "$SKIP"
            else    sudo systemctl stop $service.service
                    sudo systemctl disable $service.service && ret="$SUCCESS" || ret="$FAILURE"
                    sudo ln -sf /dev/zero $etc/$service.service
                    sE "Worked with service: $service" "$ret"
            fi
    done
    for mount in $toDisMount
    do        sP "Working with mount: $mount" "$PROGRESS"
            if [ "." = "${mount:0:1}" ] || [ ! -f $etc/$mount.mount ]
            then    sE "Not found mount: $mount" "$SKIP"
            else    sudo systemctl stop $mount.mount
                    sudo systemctl disable $mount.mount && ret="$SUCCESS" || ret="$FAILURE"
                    sudo ln -sf /dev/zero $etc/$mount.mount
                    sE "Worked with mount: $mount" "$ret"
            fi
    done 


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