title: Install Oracle-database-18c-xe on ubuntu error ORA-07445
body: <p>Today I try to install oracle-18c-xe on ubuntu but I did play with error ORA-07445. 
  I did by follow guide:
  <a href="https://chronicler.tech/mint-oracle-18c-xe/" rel="nofollow noreferrer">https://chronicler.tech/mint-oracle-18c-xe/</a>
  <a href="https://www.evaristorivieccio.es/2018/11/xe-oracle-18c-en-ubuntu-oracle-database.html" rel="nofollow noreferrer">https://www.evaristorivieccio.es/2018/11/xe-oracle-18c-en-ubuntu-oracle-database.html</a></p>
  
  <p>I stuck at command: 
  /etc/init.d/oracle-xe-18c configure</p>
  
  <p>with error:
  ORA-03113: end-of-file on communication channel</p>
  
  <p>Here detail from trace log:</p>
  
  <pre><code>Exception [type: SIGSEGV, SI_KERNEL(general_protection)] [ADDR:0x0] [PC:0x7F40B3F4EF42, adjtime()+3346] [flags: 0x0, count: 1]
  Errors in file /opt/oracle/diag/rdbms/xe/XE/trace/XE_ora_4266.trc  (incident=7):
  ORA-07445: exception encountered: core dump [adjtime()+3346] [SIGSEGV] [ADDR:0x0] [PC:0x7F40B3F4EF42] [SI_KERNEL(general_protection)] []
  Incident details in: /opt/oracle/diag/rdbms/xe/XE/incident/incdir_7/XE_ora_4266_i7.trc
  Use ADRCI or Support Workbench to package the incident.
  
  [ default][ default]u_set_comp_error: comptype '103' : error '29'
  [   CLWAL][   CLWAL]clsw_Initialize: Error [32] from procr_init_ext
  [   CLWAL][   CLWAL]clsw_Initialize: Error [PROCL-32: Oracle High Availability Services on the local node is not running Messaging error [gipcretConnectionRefused] [29]] from procr_init_ext
  2020-06-16 12:42:26.066 : [    GPNP][    GPNP] clsgpnpkww_initclswcx: [at clsgpnpkww.c:353] Result: (56) CLSGPNP_OCR_INIT. (:GPNP01201:)Failed to init CLSW-OLR context. CLSW Error (3): CLSW-3: Error in the cluster registry (OCR) layer. [32] [PROCL-32: Oracle High Availability Services on the local node is not running Messaging error [gipcretConnectionRefused] [29]]
  2020-06-16 12:42:26.066 : [    GPNP][    GPNP] clsgpnpwu_walletfopen: [at clsgpnpwu.c:382] Result: (66) CLSGPNP_WALLET_NONE. (:GPNP01603:)Wallet file not found: '/opt/oracle/product/18c/dbhomeXE/gpnp/epay/wallets/prdr/cwallet.sso'
  2020-06-16 12:42:26.066 : [    GPNP][    GPNP] clsgpnpwu_walletfopen: [at clsgpnpwu.c:500] Result: (66) CLSGPNP_WALLET_NONE. (:GPNP01610:)Cannot open wallet: '/opt/oracle/product/18c/dbhomeXE/gpnp/epay/wallets/prdr/cwallet.sso'
  2020-06-16 12:42:26.066 : [    GPNP][    GPNP] clsgpnp_getCK: [at clsgpnp0.c:2871] (:GPNP00233:)Fatal error: failed to get local gpnp security keys (wallet). Gpnp profiles cannot be verified. ***LOCAL GPNP SETUP INVALID***.&gt;
  2020-06-16 12:42:26.066 : [    GPNP][    GPNP] clsgpnp_InitIdSetCtxCK: [at clsgpnp0.c:5611] Result: (59) CLSGPNP_OCR_NOSRV. (:GPNP00267:)Cannot get stored certkey for id=1
  2020-06-16 12:42:26.066 : [    GPNP][    GPNP] clsgpnp_Init: [at clsgpnp0.c:1055] Result: (59) CLSGPNP_OCR_NOSRV. (:GPNP00211:)Error getting certkeys. 
  2020-06-16 12:42:26.066 : [    GPNP][    GPNP] clsgpnp_Init init failed. Error: CLSGPNP_ERR (1) .
  2020-06-16 12:42:26.066 : [ CLSINET][ CLSINET] Failed to initialize clsgpnp context grv 1
  </code></pre>
  
  <p>Please help me! Thank you so much!</p>