问题描述：12c安装grid的时候，一直再报一个[INS-40996] Installer has detected that the Oracle home (/home/grid) is not empty in the following nodes: [rac2] 的问题，但是发现不了怎么回事？同样的配置，换成11.2.0.4的这一步就没有问题！！！
环境：oracle 12.2.0.1
rhel6.8
求助贴？
在网上和mos找不到相关的文档，如果直接yes的话，后边默认添加不上rac2节点。
如果按照报错的字面意思，rac2 的/home/grid 目录不为空，但是rac2 目录下什么也没有？
前面环境检查：
[grid@rac1 ~]$ ./runcluvfy.sh stage -pre crsinst -n rac1,rac2 -verbose Verifying Physical Memory ... Node Name Available required Status ------------ ------------------------ ------------------------ ---------- rac2 8.1106GB (8504556.0KB) 8GB (8388608.0KB) passed rac1 .0KB) passed Verifying Physical Memory ...PASSED Verifying Available Physical Memory ... Node Name Available required Status ------------ ------------------------ ------------------------ ----------7.9599GB (8346560.0KB) 50MB (51200.0KB) passed rac1 7.7822GB (8160252.0KB) 50MB (.0KB) passed Verifying Available Physical Memory ...PASSED Verifying Swap Size ... Node Name Available required Status ------------ ------------------------ ------------------------ ---------- rac2 4GB (4194300.0KB) 8504556.0KB) Failed rac1 4GB (.0KB) Failed Verifying Swap Size ...Failed (PRVF-7573) Verifying Free Space: rac2:/usr,rac2:/var,rac2:/etc,rac2:/sbin,1)">tmp ... Path Node Name Mount point Available required Status ---------------- ------------ ------------ ------------ ------------ ------------ /usr rac2 / 25.5GB 25MB passed /var rac2 / .5GB 5MB passed /etc rac2 / .5GB 25MB passed /sbin rac2 / .5GB 10MB passed /tmp rac2 / .5GB 1GB passed Verifying Free Space: rac2:/usr,1)">tmp ...PASSED Verifying Free Space: rac1:/usr,rac1:/tmp ... Path Node Name Mount point Available required Status ---------------- ------------ ------------ ------------ ------------ ------------ /usr rac1 / 10.2058GB 25MB passed /var rac1 / .2058GB 5MB passed /etc rac1 / .2058GB 25MB passed /sbin rac1 / .2058GB 10MB passed /tmp rac1 / .2058GB 1GB passed Verifying Free Space: rac1:/usr,1)">tmp ...PASSED Verifying User Existence: grid ... Node Name Status Comment ------------ ------------------------ ------------------------ rac2 passed exists(1301) rac1 passed exists() Verifying Users With Same UID: ...PASSED Verifying User Existence: grid ...PASSED Verifying Group Existence: asmadmin ... Node Name Status Comment ------------ ------------------------ ------------------------ rac2 passed exists rac1 passed exists Verifying Group Existence: asmadmin ...PASSED Verifying Group Existence: asmdba ... Node Name Status Comment ------------ ------------------------ ------------------------ rac2 passed exists rac1 passed exists Verifying Group Existence: asmdba ...PASSED Verifying Group Existence: oinstall ... Node Name Status Comment ------------ ------------------------ ------------------------ rac2 passed exists rac1 passed exists Verifying Group Existence: oinstall ...PASSED Verifying Group Membership: asmdba ... Node Name User Exists Group Exists User in Group Status ---------------- ------------ ------------ ------------ ---------------- rac2 yes yes yes passed rac1 yes yes yes passed Verifying Group Membership: asmdba ...PASSED Verifying Group Membership: asmadmin ... Node Name User Exists Group Exists User rac2 yes yes yes passed rac1 yes yes yes passed Verifying Group Membership: asmadmin ...PASSED Verifying Group Membership: oinstall(Primary) ... Node Name User Exists Group Exists User Group Primary Status ---------------- ------------ ------------ ------------ ------------ ------------ rac2 yes yes yes yes passed rac1 yes yes yes yes passed Verifying Group Membership: oinstall(Primary) ...PASSED Verifying Run Level ... Node Name run level required Status ------------ ------------------------ ------------------------ ----------5 3,5 passed rac1 passed Verifying Run Level ...PASSED Verifying Hard Limit: maximum open file descriptors ... Node Name Type Available required Status ---------------- ------------ ------------ ------------ ---------------- rac2 hard 65536 65536 passed rac1 hard passed Verifying Hard Limit: maximum open file descriptors ...PASSED Verifying Soft Limit: maximum open file descriptors ... Node Name Type Available required Status ---------------- ------------ ------------ ------------ ---------------- rac2 soft 1024 1024 passed rac1 soft passed Verifying Soft Limit: maximum open file descriptors ...PASSED Verifying Hard Limit: maximum user processes ... Node Name Type Available required Status ---------------- ------------ ------------ ------------ ----------------16384 16384 passed Verifying Hard Limit: maximum user processes ...PASSED Verifying Soft Limit: maximum user processes ... Node Name Type Available required Status ---------------- ------------ ------------ ------------ ----------------2047 2047 passed Verifying Soft Limit: maximum user processes ...PASSED Verifying Soft Limit: maximum stack size ... Node Name Type Available required Status ---------------- ------------ ------------ ------------ ----------------10240 10240 passed rac1 soft passed Verifying Soft Limit: maximum stack size ...PASSED Verifying Architecture ... Node Name Available required Status ------------ ------------------------ ------------------------ ---------- rac2 x86_64 x86_64 passed rac1 x86_64 x86_64 passed Verifying Architecture ...PASSED Verifying OS Kernel Version ... Node Name Available required Status ------------ ------------------------ ------------------------ ----------4.1.12-37.4.1.el6uek.x86_64 2.6.39-400.211.1 passed rac1 passed Verifying OS Kernel Version ...PASSED Verifying OS Kernel Parameter: semmsl ... Node Name Current Configured required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ rac1 250 250 passed rac2 passed Verifying OS Kernel Parameter: semmsl ...PASSED Verifying OS Kernel Parameter: semmns ... Node Name Current Configured required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------32000 32000 passed rac2 passed Verifying OS Kernel Parameter: semmns ...PASSED Verifying OS Kernel Parameter: semopm ... Node Name Current Configured required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------100 100 passed Verifying OS Kernel Parameter: semopm ...PASSED Verifying OS Kernel Parameter: semmni ... Node Name Current Configured required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------128 128 passed Verifying OS Kernel Parameter: semmni ...PASSED Verifying OS Kernel Parameter: shmmax ... Node Name Current Configured required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------43543326720 4354332672 passed rac2 passed Verifying OS Kernel Parameter: shmmax ...PASSED Verifying OS Kernel Parameter: shmmni ... Node Name Current Configured required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------4096 4096 passed rac2 passed Verifying OS Kernel Parameter: shmmni ...PASSED Verifying OS Kernel Parameter: shmall ... Node Name Current Configured required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------2097152 850455 passed rac2 passed Verifying OS Kernel Parameter: shmall ...PASSED Verifying OS Kernel Parameter: file-max ... Node Name Current Configured required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------6815744 6815744 passed rac2 passed Verifying OS Kernel Parameter: file-max ...PASSED Verifying OS Kernel Parameter: ip_local_port_range ... Node Name Current Configured required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ rac1 between 9000 & 65500 between 65535 passed rac2 between passed Verifying OS Kernel Parameter: ip_local_port_range ...PASSED Verifying OS Kernel Parameter: rmem_default ... Node Name Current Configured required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------262144 262144 passed Verifying OS Kernel Parameter: rmem_default ...PASSED Verifying OS Kernel Parameter: rmem_max ... Node Name Current Configured required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------4194304 4194304 passed Verifying OS Kernel Parameter: rmem_max ...PASSED Verifying OS Kernel Parameter: wmem_default ... Node Name Current Configured required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ passed Verifying OS Kernel Parameter: wmem_default ...PASSED Verifying OS Kernel Parameter: wmem_max ... Node Name Current Configured required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------1048576 1048576 passed Verifying OS Kernel Parameter: wmem_max ...PASSED Verifying OS Kernel Parameter: aio-max-nr ... Node Name Current Configured required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ passed Verifying OS Kernel Parameter: aio-max-nr ...PASSED Verifying OS Kernel Parameter: panic_on_oops ... Node Name Current Configured required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------1 undefined passed rac2 passed Verifying OS Kernel Parameter: panic_on_oops ...PASSED Verifying Package: binutils-2.20.51.0.2 ... Node Name Available required Status ------------ ------------------------ ------------------------ ---------- rac2 binutils-2-5.44.el6 binutils- passed rac1 binutils- passed Verifying Package: binutils- ...PASSED Verifying Package: compat-libcap1-1.10 rac2 compat-libcap1-1.10-1 compat-libcap1- passed rac1 compat-libcap1- passed Verifying Package: compat-libcap1- ...PASSED Verifying Package: compat-libstdc++-33-3.2.3 (x86_64) ... Node Name Available required Status ------------ ------------------------ ------------------------ ---------- rac2 compat-libstdc++-33(x86_64)-3-69.el6 compat-libstdc++- passed rac1 compat-libstdc++- passed Verifying Package: compat-libstdc++- (x86_64) ...PASSED Verifying Package: libgcc-4.4.7 rac2 libgcc(x86_64)-7-23.0.1.el6 libgcc(x86_64)- passed rac1 libgcc(x86_64)- passed Verifying Package: libgcc- (x86_64) ...PASSED Verifying Package: libstdc++- rac2 libstdc++(x86_64)-1.el6 libstdc++(x86_64)- passed rac1 libstdc++(x86_64)- passed Verifying Package: libstdc++- (x86_64) ...PASSED Verifying Package: libstdc++-devel- rac2 libstdc++-devel(x86_64)-1.el6 libstdc++-devel(x86_64)- passed rac1 libstdc++-devel(x86_64)- passed Verifying Package: libstdc++-devel- (x86_64) ...PASSED Verifying Package: sysstat-9.0.4 rac2 sysstat-4-33.0.1.el6_9.1 sysstat- passed rac1 sysstat- passed Verifying Package: sysstat- ...PASSED Verifying Package: ksh ... Node Name Available required Status ------------ ------------------------ ------------------------ ---------- rac2 ksh ksh passed rac1 ksh ksh passed Verifying Package: ksh ...PASSED Verifying Package: make-3.81 rac2 make-3.81-23.el6 make- passed rac1 make- passed Verifying Package: make- ...PASSED Verifying Package: glibc-2.12 rac2 glibc(x86_64)-2.12-1.212.0.3.el6_10.3 glibc(x86_64)- passed rac1 glibc(x86_64)- passed Verifying Package: glibc- (x86_64) ...PASSED Verifying Package: glibc-devel- rac2 glibc-devel(x86_64)-3 glibc-devel(x86_64)- passed rac1 glibc-devel(x86_64)- passed Verifying Package: glibc-devel- (x86_64) ...PASSED Verifying Package: libaio-0.3.107 rac2 libaio(x86_64)-107-10.el6 libaio(x86_64)- passed rac1 libaio(x86_64)- passed Verifying Package: libaio- (x86_64) ...PASSED Verifying Package: libaio-devel- rac2 libaio-devel(x86_64)-10.el6 libaio-devel(x86_64)- passed rac1 libaio-devel(x86_64)- passed Verifying Package: libaio-devel- (x86_64) ...PASSED Verifying Package: nfs-utils-1.2.15 rac2 nfs-utils-70.0.1.el6 nfs-utils- passed rac1 nfs-utils- passed Verifying Package: nfs-utils- ...PASSED Verifying Package: e2fsprogs-1.42.8 rac2 e2fsprogs-8-1.0.2.el6 e2fsprogs- passed rac1 e2fsprogs- passed Verifying Package: e2fsprogs- ...PASSED Verifying Package: e2fsprogs-libs- rac2 e2fsprogs-libs(x86_64)-2.el6 e2fsprogs-libs(x86_64)- passed rac1 e2fsprogs-libs(x86_64)- passed Verifying Package: e2fsprogs-libs- (x86_64) ...PASSED Verifying Package: smartmontools-5.43- rac2 smartmontools-1.el6 smartmontools- passed rac1 smartmontools- passed Verifying Package: smartmontools- ...PASSED Verifying Package: net-tools-1.60-110 rac2 net-tools-110.0.1.el6_2 net-tools- passed rac1 net-tools- passed Verifying Package: net-tools- ...PASSED Verifying Port Availability for component "Oracle Notification Service (ONS)" ... Node Name Port Number Protocol Available Status ---------------- ------------ ------------ ------------ ---------------- rac2 6200 TCP yes successful rac1 TCP yes successful rac2 6100 TCP yes successful Verifying Port Availability Oracle Cluster Synchronization Services (CSSD)42424 TCP yes successful rac1 TCP yes successful Verifying Port Availability ...PASSED Verifying Users With Same UID: 0 ...PASSED Verifying Current Group ID ...PASSED Verifying Root user consistency ... Node Name Status ------------------------------------ ------------------------ rac2 passed rac1 passed Verifying Root user consistency ...PASSED Verifying Package: cvuqdisk-10- rac2 cvuqdisk-1 cvuqdisk- passed rac1 cvuqdisk- passed Verifying Package: cvuqdisk- ...PASSED Verifying Node Connectivity ... Verifying Hosts File ... Node Name Status ------------------------------------ ------------------------ rac1 passed rac2 passed Verifying Hosts File ...PASSED Interface information for node rac1 Name IP Address subnet Gateway Def. Gateway HW Address MTU ------ --------------- --------------- --------------- --------------- ----------------- ------ eth1 192.168.163.11 163.0 0.0.0.0 163.2 00:0C:29:91:F3:E1 1500 eth2 211.66 211.0 91:F3:EB Interface information rac2163.12 38:F8:D4 211.77 38:F8:DE Check: MTU consistency of the subnet 192.168.163.0. Node Name IP Address subnet MTU ---------------- ------------ ------------ ------------ ---------------- rac1 eth1 163.0 rac2 eth1 Check: MTU consistency of the subnet 192.168.211.0 rac1 eth2 211.0 rac2 eth2 Verifying Check that maximum (MTU) size packet goes through subnet ...PASSED Source Destination Connected? ------------------------------ ------------------------------ ---------------- rac1[eth1:163.11] rac2[eth1:163.12] yes Source Destination Connected? ------------------------------ ------------------------------ ---------------- rac1[eth2:211.66] rac2[eth2:211.77] yes Verifying subnet mask consistency for subnet ...PASSED Verifying subnet mask consistency ...PASSED Verifying Node Connectivity ...PASSED Verifying Multicast check ... Checking subnet " for multicast communication with multicast group 224.0.0.251 Verifying Multicast check ...PASSED Verifying Network Time Protocol (NTP) ... Verifying '/etc/ntp.conf' ... Node Name File exists? ------------------------------------ ------------------------ rac2 no rac1 no Verifying ...PASSED Verifying /var/run/ntpd.pid ...PASSED Verifying Network Time Protocol (NTP) ...PASSED Verifying Same core file name pattern ...PASSED Verifying User Mask ... Node Name Available required Comment ------------ ------------------------ ------------------------ ----------0022 0022 passed rac1 passed Verifying User Mask ...PASSED Verifying User Not In Group root: grid ... Node Name Status Comment ------------ ------------------------ ------------------------ rac2 passed does not exist rac1 passed does not exist Verifying User Not In Group : grid ...PASSED Verifying Time zone consistency ...PASSED Verifying resolv.conf Integrity ... Verifying (Linux) resolv.conf Integrity ...Failed (PRVG-13159) Verifying resolv.conf Integrity ...Failed (PRVG-) Verifying DNS/NIS name service ...PASSED Verifying Domain Sockets ...PASSED Verifying /boot mount ...PASSED Verifying Daemon avahi-daemon not configured and running ... Node Name Configured Status ------------ ------------------------ ------------------------ rac2 no passed rac1 no passed Node Name Running? Status ------------ ------------------------ ------------------------ rac2 no passed rac1 no passed Verifying Daemon not configured and running ...PASSED Verifying Daemon proxyt not configured and running ...PASSED Verifying User Equivalence ...PASSED Verifying /dev/shm mounted as temporary file system ...PASSED Verifying File system mount options for path /var ...PASSED Verifying zeroconf check ...Failed (PRVE-10077) Verifying ASM Filter Driver configuration ...PASSED Pre-check for cluster services setup was unsuccessful on all the nodes. Failures were encountered during execution of CVU verification request stage -pre crsinst. Verifying Swap Size ...Failed rac2: PRVF-7573 : Sufficient swap size is not available on node [required = 8504556.0KB) ; Found = 4GB (4194300.0KB)] rac1: PRVF-.0KB)] Verifying resolv.conf Integrity ...Failed rac2: PRVG-13159 : On node " the file /etc/resolv.conf Could not be parsed because the file is empty. rac2: Check for integrity of file Failed rac1: PRVG- empty. rac1: Check Failed Verifying (Linux) resolv.conf Integrity ...Failed rac2: PRVG- Could not be parsed because the file empty. rac1: PRVG- empty. Verifying zeroconf check ...Failed rac2: PRVE-10077 : NOZEROCONF parameter was not specified or was not set to yes' in file /etc/sysconfig/network" on node rac1: PRVE- CVU operation performed: stage -pre crsinst Date: May 13,1)">2021 9:58:29 AM CVU home: /home/grid/ User: grid
点击yes之后，其实后边是没有把rac2节点添加成功的
已解决：
oracle环境变量设置的与安装目录有冲突，重新调整环境变量
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