如何在装有高版本NBU的主机上安装低版本的NBU？卸载8.0安装7.5记录

[root@test bin]# sh bp.kill_all 

No NB/MM daemons appear to be running.
[root@test bin]# 
[root@test bin]# 
[root@test bin]# rpm -qa |grep VRTSfr
[root@test bin]# rpm -qa |grep VRTSjan
[root@test bin]# rpm -qa |grep VRTSzhn
[root@test bin]# rpm -qa |grep VRTSnb
VRTSnbjre-8.0.0.0-1478763514.x86_64
VRTSnbpck-8.0.0.0-1478763781.x86_64
VRTSnbclt-8.0.0.0-1478763601.x86_64
VRTSnbcfg-8.0.0.0-1478763513.x86_64
VRTSnbjava-8.0.0.0-1478763539.x86_64
[root@test bin]# 

[root@test bin]# rpm -e VRTSnbjre-8.0.0.0-1478763514.x86_64
error: Failed dependencies:
        VRTSnbjre >= 8.0.0.0 is needed by (installed) VRTSnbjava-8.0.0.0-1478763539.x86_64
        VRTSnbjre >= 8.0.0.0 is needed by (installed) VRTSnbcfg-8.0.0.0-1478763513.x86_64
[root@test bin]# rpm -e VRTSnbjava-8.0.0.0-1478763539.x86_64


[root@test bin]# rpm -e VRTSnbcfg-8.0.0.0-1478763513.x86_64

warning: /usr/openv/netbackup/bp.conf saved as /usr/openv/netbackup/bp.conf.rpmsave

[root@test bin]# rpm -e VRTSnbjre-8.0.0.0-1478763514.x86_64


[root@test bin]# rpm -e VRTSnbpck-8.0.0.0-1478763781.x86_64
error: Failed dependencies:
        VRTSnbpck >= 8.0.0.0 is needed by (installed) VRTSnbclt-8.0.0.0-1478763601.x86_64
[root@test bin]# rpm -e VRTSnbclt-8.0.0.0-1478763601.x86_64

Running NB Client pre-remove scriptlet.
Stopping all running NetBackup daemons
Terminating NetBackup and/or Media Manager processes.

[root@test bin]# rpm -e VRTSnbclt-8.0.0.0-1478763601.x86_64
error: package VRTSnbclt-8.0.0.0-1478763601.x86_64 is not installed
[root@test bin]# rpm -e VRTSnbcfg-8.0.0.0-1478763513.x86_64
error: package VRTSnbcfg-8.0.0.0-1478763513.x86_64 is not installed
[root@test bin]# rpm -e VRTSnbjava-8.0.0.0-1478763539.x86_64
error: package VRTSnbjava-8.0.0.0-1478763539.x86_64 is not installed
[root@test bin]# /usr/openv/netbackup/bin/vxlogcfg -r -p 51216
-bash: /usr/openv/netbackup/bin/vxlogcfg: No such file or directory
[root@test bin]# cd /usr
[root@test usr]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg_system-lv_root
                       20G  401M   19G   3% /

/dev/mapper/vg_system-lv_usr
                       20G  2.1G   17G  11% /usr


[root@test usr]# mv openv/ openv80