検索
ホームページデータベースmysql チュートリアルRMAN恢复案例之--不完全恢复错误案例

RMAN恢复案例之--不完全恢复错误案例 RMAN恢复案例: 不完全恢复,由于在先前的数据文件备份有误,导致恢复失败。 [oracle@rh6~]$rmantarget/RecoveryManager:Release11.2.0.1.0-ProductiononSatSep2015:54:252014Copyright(c)1982,2009,Oracleand/oritsaffi

RMAN恢复案例之--不完全恢复错误案例


RMAN恢复案例:

不完全恢复,由于在先前的数据文件备份有误,导致恢复失败。

[oracle@rh6 ~]$ rman target /
Recovery Manager: Release 11.2.0.1.0 - Production on Sat Sep 20 15:54:25 2014
Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.
connected to target database: TEST1 (DBID=1195893416)

RMAN> run {
2> shutdown immediate;
3> startup mount;
4> set until time '2014-09-20 15:49:36';
5> restore database;
6> recover database ;
7> alter database open resetlogs;
8> sql'alter system switch logfile';
9> }
using target database control file instead of recovery catalog
database closed
database dismounted
Oracle instance shut down
connected to target database (not started)
Oracle instance started
database mounted
Total System Global Area     175767552 bytes
Fixed Size                     1335276 bytes
Variable Size                142606356 bytes
Database Buffers              29360128 bytes
Redo Buffers                   2465792 bytes
executing command: SET until clause
Starting restore at 20-SEP-14
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=18 device type=DISK
flashing back control file to SCN 9601534
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00002 to /u01/app/oracle/oradata/test1/sysaux01.dbf
channel ORA_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/test1/users01.dbf
channel ORA_DISK_1: restoring datafile 00005 to /u01/app/oracle/oradata/test1/perfs.dbf
channel ORA_DISK_1: restoring datafile 00007 to /u01/app/oracle/oradata/test1/undotbs2.dbf
channel ORA_DISK_1: restoring datafile 00010 to /u01/app/oracle/oradata/test1/index01.dbf
channel ORA_DISK_1: reading from backup piece /dsk1/backup/test1/TEST1_240.bak
channel ORA_DISK_1: piece handle=/dsk1/backup/test1/TEST1_240.bak tag=TAG20140920T152720
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:35
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00013 to /u01/app/oracle/oradata/test1/tbs_16.dbf
channel ORA_DISK_1: reading from backup piece /dsk1/backup/test1/TEST1_241.bak
channel ORA_DISK_1: piece handle=/dsk1/backup/test1/TEST1_241.bak tag=TAG20140920T152720
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00001 to /u01/app/oracle/oradata/test1/system01.dbf
channel ORA_DISK_1: restoring datafile 00003 to /u01/app/oracle/oradata/test1/test1.dbf
channel ORA_DISK_1: restoring datafile 00006 to /u01/app/oracle/oradata/test1/dict1.dbf
channel ORA_DISK_1: reading from backup piece /dsk1/backup/test1/TEST1_239.bak
channel ORA_DISK_1: piece handle=/dsk1/backup/test1/TEST1_239.bak tag=TAG20140920T152720
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:45
Finished restore at 20-SEP-14
Starting recover at 20-SEP-14
using channel ORA_DISK_1
starting media recovery

recover 失败......

media recovery failed

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03002: failure of recover command at 09/20/2014 15:59:01

RMAN-20505: create datafile during recovery

RMAN-11003: failure during parse/execution of SQL statement: alter database recover if needed

 start until time 'SEP 20 2014 15:49:36'

ORA-00283: recovery session canceled due to errors

ORA-01244: unnamed datafile(s) added to control file by media recovery

ORA-01110: data file 8: '/u01/app/oracle/oradata/test1/tbs2.dbf'

查看备份信息:

RMAN> list backup of database;
List of Backup Sets
===================
BS Key  Type LV Size       Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
229     Full    158.89M    DISK        00:01:18     20-SEP-14      
        BP Key: 229   Status: AVAILABLE  Compressed: NO  Tag: TAG20140920T152720
        Piece Name: /dsk1/backup/test1/TEST1_240.bak
  List of Datafiles in backup set 229
  File LV Type Ckp SCN    Ckp Time  Name
  ---- -- ---- ---------- --------- ----
  2       Full 9601534    20-SEP-14 /u01/app/oracle/oradata/test1/sysaux01.dbf
  4       Full 9601534    20-SEP-14 /u01/app/oracle/oradata/test1/users01.dbf
  5       Full 9601534    20-SEP-14 /u01/app/oracle/oradata/test1/perfs.dbf
  7       Full 9601534    20-SEP-14 /u01/app/oracle/oradata/test1/undotbs2.dbf
  10      Full 9601534    20-SEP-14 /u01/app/oracle/oradata/test1/index01.dbf
BS Key  Type LV Size       Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
230     Full    1.06M      DISK        00:00:01     20-SEP-14      
        BP Key: 230   Status: AVAILABLE  Compressed: NO  Tag: TAG20140920T152720
        Piece Name: /dsk1/backup/test1/TEST1_241.bak
  List of Datafiles in backup set 230
  File LV Type Ckp SCN    Ckp Time  Name
  ---- -- ---- ---------- --------- ----
  13      Full 9601534    20-SEP-14 /u01/app/oracle/oradata/test1/tbs_16.dbf
BS Key  Type LV Size       Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
231     Full    609.73M    DISK        00:01:32     20-SEP-14      
        BP Key: 231   Status: AVAILABLE  Compressed: NO  Tag: TAG20140920T152720
        Piece Name: /dsk1/backup/test1/TEST1_239.bak
  List of Datafiles in backup set 231
  File LV Type Ckp SCN    Ckp Time  Name
  ---- -- ---- ---------- --------- ----
  1       Full 9601534    20-SEP-14 /u01/app/oracle/oradata/test1/system01.dbf
  3       Full 9601534    20-SEP-14 /u01/app/oracle/oradata/test1/test1.dbf
  6       Full 9601534    20-SEP-14 /u01/app/oracle/oradata/test1/dict1.dbf
  8       Full 9601534    20-SEP-14 /u01/app/oracle/product/11.2.0/db_1/dbs/UNNAMED00008

在备份中发现:

'/u01/app/oracle/product/11.2.0/db_1/dbs/UNNAMED00008',而在数据库中并没有这个数据文件!

解决方法:

将datafile offline,open数据库:

16:02:43 SYS@ test1 >alter database datafile 8 offline;
Database altered.

recover database跳过此表空间:

RMAN> recover database skip tablespace tbs2;

Starting recover at 20-SEP-14
using channel ORA_DISK_1
Executing: alter database datafile 8 offline
starting media recovery
media recovery complete, elapsed time: 00:00:30
Finished recover at 20-SEP-14

查看告警日志:

alter database datafile 8 offline
Completed: alter database datafile 8 offline
alter database recover datafile list clear
Completed: alter database recover datafile list clear
alter database recover datafile list
 1 , 2 , 3 , 4 , 5 , 6 , 7 , 10 , 13
Completed: alter database recover datafile list
 1 , 2 , 3 , 4 , 5 , 6 , 7 , 10 , 13
alter database recover if needed
 start
Media Recovery Start
Serial Media Recovery started
Recovery of Online Redo Log: Thread 1 Group 5 Seq 15 Reading mem 0
  Mem# 0: /dsk1/oradata/test1/redo05a.log
Sat Sep 20 16:06:51 2014
Media Recovery Complete (test1)
Completed: alter database recover if needed
 start

打开数据库删除此表空间:

 16:04:42 SYS@ test1 >conn /as sysdba;
Connected.
16:10:10 SYS@ test1 >alter database open;
Database altered.
Elapsed: 00:00:21.63
16:10:54 SYS@ test1 >select name from v$datafile;
NAME
--------------------------------------------------
/u01/app/oracle/oradata/test1/system01.dbf
/u01/app/oracle/oradata/test1/sysaux01.dbf
/u01/app/oracle/oradata/test1/test1.dbf
/u01/app/oracle/oradata/test1/users01.dbf
/u01/app/oracle/oradata/test1/perfs.dbf
/u01/app/oracle/oradata/test1/dict1.dbf
/u01/app/oracle/oradata/test1/undotbs2.dbf
/u01/app/oracle/product/11.2.0/db_1/dbs/UNNAMED000
08
/u01/app/oracle/oradata/test1/index01.dbf
/u01/app/oracle/oradata/test1/tbs_16.dbf
10 rows selected.

16:11:10 SYS@ test1 >drop tablespace tbs2 including contents and datafiles;
Tablespace dropped.

16:11:32 SYS@ test1 >select name from v$datafile;
NAME
--------------------------------------------------
/u01/app/oracle/oradata/test1/system01.dbf
/u01/app/oracle/oradata/test1/sysaux01.dbf
/u01/app/oracle/oradata/test1/test1.dbf
/u01/app/oracle/oradata/test1/users01.dbf
/u01/app/oracle/oradata/test1/perfs.dbf
/u01/app/oracle/oradata/test1/dict1.dbf
/u01/app/oracle/oradata/test1/undotbs2.dbf
/u01/app/oracle/oradata/test1/index01.dbf
/u01/app/oracle/oradata/test1/tbs_16.dbf
9 rows selected.

对数据库做重新做全备,再次做数据恢复!

恢复过程又出错:

RMAN> run {
2> shutdown immediate;
3> startup mount;
4> set until time '2014-09-20 16:19:30';
5> restore database;
6> recover database;
7> alter database open resetlogs;
8> }
database closed
database dismounted
Oracle instance shut down
connected to target database (not started)
Oracle instance started
database mounted
Total System Global Area     175767552 bytes
Fixed Size                     1335276 bytes
Variable Size                142606356 bytes
Database Buffers              29360128 bytes
Redo Buffers                   2465792 bytes
executing command: SET until clause
Starting restore at 20-SEP-14
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=18 device type=DISK
flashing back control file to SCN 9603237
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 09/20/2014 16:21:46
RMAN-06085: must use SET NEWNAME command to restore datafile /u01/app/oracle/product/11.2.0/db_1/dbs/UNNAMED00008

查看备份信息:

RMAN> list backup;
List of Backup Sets
===================
BS Key  Type LV Size       Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
233     Full    164.45M    DISK        00:01:04     20-SEP-14      
        BP Key: 233   Status: AVAILABLE  Compressed: NO  Tag: TAG20140920T161544
        Piece Name: /dsk1/backup/test1/TEST1_244.bak
  List of Datafiles in backup set 233
  File LV Type Ckp SCN    Ckp Time  Name
  ---- -- ---- ---------- --------- ----
  2       Full 9603220    20-SEP-14 /u01/app/oracle/oradata/test1/sysaux01.dbf
  5       Full 9603220    20-SEP-14 /u01/app/oracle/oradata/test1/perfs.dbf
  7       Full 9603220    20-SEP-14 /u01/app/oracle/oradata/test1/undotbs2.dbf
  10      Full 9603220    20-SEP-14 /u01/app/oracle/oradata/test1/index01.dbf
BS Key  Type LV Size       Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
234     Full    1.06M      DISK        00:00:02     20-SEP-14      
        BP Key: 234   Status: AVAILABLE  Compressed: NO  Tag: TAG20140920T161544
        Piece Name: /dsk1/backup/test1/TEST1_245.bak
  List of Datafiles in backup set 234
  File LV Type Ckp SCN    Ckp Time  Name
  ---- -- ---- ---------- --------- ----
  13      Full 9603220    20-SEP-14 /u01/app/oracle/oradata/test1/tbs_16.dbf
BS Key  Type LV Size       Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
235     Full    613.10M    DISK        00:01:28     20-SEP-14      
        BP Key: 235   Status: AVAILABLE  Compressed: NO  Tag: TAG20140920T161544
        Piece Name: /dsk1/backup/test1/TEST1_243.bak
  List of Datafiles in backup set 235
  File LV Type Ckp SCN    Ckp Time  Name
  ---- -- ---- ---------- --------- ----
  1       Full 9603220    20-SEP-14 /u01/app/oracle/oradata/test1/system01.dbf
  3       Full 9603220    20-SEP-14 /u01/app/oracle/oradata/test1/test1.dbf
  4       Full 9603220    20-SEP-14 /u01/app/oracle/oradata/test1/users01.dbf
  6       Full 9603220    20-SEP-14 /u01/app/oracle/oradata/test1/dict1.dbf
BS Key  Type LV Size       Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
236     Full    11.33M     DISK        00:00:05     20-SEP-14      
        BP Key: 236   Status: AVAILABLE  Compressed: NO  Tag: TAG20140920T161714
        Piece Name: /dsk4/backup/TEST1/autobackup/2014_09_20/o1_mf_s_858788041_b1tg0gds_.bkp
  SPFILE Included: Modification time: 03-SEP-14
  SPFILE db_unique_name: TEST1
  Control File Included: Ckp SCN: 9603237      Ckp time: 20-SEP-14

restore controlfile:

RMAN> list backup of controlfile;
List of Backup Sets
===================
BS Key  Type LV Size       Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
236     Full    11.33M     DISK        00:00:05     20-SEP-14      
        BP Key: 236   Status: AVAILABLE  Compressed: NO  Tag: TAG20140920T161714
        Piece Name: /dsk4/backup/TEST1/autobackup/2014_09_20/o1_mf_s_858788041_b1tg0gds_.bkp
  Control File Included: Ckp SCN: 9603237      Ckp time: 20-SEP-14
  
RMAN> shutdown immediate;
database dismounted
Oracle instance shut down
RMAN> startup nomount;
connected to target database (not started)
Oracle instance started
Total System Global Area     175767552 bytes
Fixed Size                     1335276 bytes
Variable Size                142606356 bytes
Database Buffers              29360128 bytes
Redo Buffers                   2465792 bytes

RMAN> restore controlfile from autobackup;
Starting restore at 20-SEP-14
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=19 device type=DISK
recovery area destination: /dsk4/backup
database name (or database unique name) used for search: TEST1
channel ORA_DISK_1: AUTOBACKUP /dsk4/backup/TEST1/autobackup/2014_09_20/o1_mf_s_858788041_b1tg0gds_.bkp found in the recovery area
channel ORA_DISK_1: looking for AUTOBACKUP on day: 20140920
channel ORA_DISK_1: restoring control file from AUTOBACKUP /dsk4/backup/TEST1/autobackup/2014_09_20/o1_mf_s_858788041_b1tg0gds_.bkp
channel ORA_DISK_1: control file restore from AUTOBACKUP complete
output file name=/u01/app/oracle/oradata/test1/control01.ctl
output file name=/dsk1/oradata/test1/control02.ctl
output file name=/dsk2/oradata/test1/control03.ctl
Finished restore at 20-SEP-14

重新做恢复:

RMAN> run {
2>  shutdown immediate;
3>  startup mount;
4>  set until time '2014-09-20 16:19:30';
5>  restore database;
6>  recover database;
7>  alter database open resetlogs;
8>  }

Oracle instance shut down
connected to target database (not started)
Oracle instance started
database mounted
Total System Global Area     175767552 bytes
Fixed Size                     1335276 bytes
Variable Size                142606356 bytes
Database Buffers              29360128 bytes
Redo Buffers                   2465792 bytes
executing command: SET until clause
Starting restore at 20-SEP-14
Starting implicit crosscheck backup at 20-SEP-14
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=18 device type=DISK
Crosschecked 3 objects
Finished implicit crosscheck backup at 20-SEP-14
Starting implicit crosscheck copy at 20-SEP-14
using channel ORA_DISK_1
Finished implicit crosscheck copy at 20-SEP-14
searching for all files in the recovery area
cataloging files...
cataloging done
List of Cataloged Files
=======================
File Name: /dsk4/backup/TEST1/autobackup/2014_09_20/o1_mf_s_858788041_b1tg0gds_.bkp
File Name: /dsk4/backup/TEST1/autobackup/2014_09_14/o1_mf_s_858262943_b1bf156d_.bkp
File Name: /dsk4/backup/TEST1/autobackup/2014_09_14/o1_mf_s_858259416_b1b9lv2j_.bkp
File Name: /dsk4/backup/TEST1/autobackup/2014_09_14/o1_mf_s_858261087_b1bc76lg_.bkp
File Name: /dsk4/backup/TEST1/autobackup/2014_09_14/o1_mf_s_858260002_b1bb58sq_.bkp
File Name: /dsk4/backup/TEST1/autobackup/2013_11_10/o1_mf_s_831135549_97ycp30c_.bkp
File Name: /dsk4/backup/TEST1/autobackup/2013_11_10/o1_mf_s_831134795_97yc0vk0_.bkp
File Name: /dsk4/backup/TEST1/autobackup/2013_11_10/o1_mf_s_831136532_97ydnsbl_.bkp
File Name: /dsk4/backup/TEST1/autobackup/2013_11_10/o1_mf_s_831135962_97yd2z3r_.bkp
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00002 to /u01/app/oracle/oradata/test1/sysaux01.dbf
channel ORA_DISK_1: restoring datafile 00005 to /u01/app/oracle/oradata/test1/perfs.dbf
channel ORA_DISK_1: restoring datafile 00007 to /u01/app/oracle/oradata/test1/undotbs2.dbf
channel ORA_DISK_1: restoring datafile 00010 to /u01/app/oracle/oradata/test1/index01.dbf
channel ORA_DISK_1: reading from backup piece /dsk1/backup/test1/TEST1_244.bak
channel ORA_DISK_1: piece handle=/dsk1/backup/test1/TEST1_244.bak tag=TAG20140920T161544
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:25
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00013 to /u01/app/oracle/oradata/test1/tbs_16.dbf
channel ORA_DISK_1: reading from backup piece /dsk1/backup/test1/TEST1_245.bak
channel ORA_DISK_1: piece handle=/dsk1/backup/test1/TEST1_245.bak tag=TAG20140920T161544
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00001 to /u01/app/oracle/oradata/test1/system01.dbf
channel ORA_DISK_1: restoring datafile 00003 to /u01/app/oracle/oradata/test1/test1.dbf
channel ORA_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/test1/users01.dbf
channel ORA_DISK_1: restoring datafile 00006 to /u01/app/oracle/oradata/test1/dict1.dbf
channel ORA_DISK_1: reading from backup piece /dsk1/backup/test1/TEST1_243.bak
channel ORA_DISK_1: piece handle=/dsk1/backup/test1/TEST1_243.bak tag=TAG20140920T161544
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:55
Finished restore at 20-SEP-14
Starting recover at 20-SEP-14
using channel ORA_DISK_1
starting media recovery
archived log for thread 1 with sequence 17 is already on disk as file /dsk1/oradata/test1/redo04a.log
archived log for thread 1 with sequence 18 is already on disk as file /dsk1/oradata/test1/redo05a.log
archived log file name=/dsk1/oradata/test1/redo04a.log thread=1 sequence=17
archived log file name=/dsk1/oradata/test1/redo05a.log thread=1 sequence=18
media recovery complete, elapsed time: 00:00:08
Finished recover at 20-SEP-14
Starting recover at 20-SEP-14
using channel ORA_DISK_1
starting media recovery
archived log for thread 1 with sequence 17 is already on disk as file /dsk1/oradata/test1/redo04a.log
archived log for thread 1 with sequence 18 is already on disk as file /dsk1/oradata/test1/redo05a.log
archived log file name=/dsk1/oradata/test1/redo04a.log thread=1 sequence=17
archived log file name=/dsk1/oradata/test1/redo05a.log thread=1 sequence=18
media recovery complete, elapsed time: 00:00:08
Finished recover at 20-SEP-14
database opened

@至此,不完全恢复成功!




 

 



声明
この記事の内容はネチズンが自主的に寄稿したものであり、著作権は原著者に帰属します。このサイトは、それに相当する法的責任を負いません。盗作または侵害の疑いのあるコンテンツを見つけた場合は、admin@php.cn までご連絡ください。
如何恢复您的 Steam 云存档如何恢复您的 Steam 云存档May 28, 2023 pm 10:25 PM

Steam会在您玩游戏时保存您的游戏进度并将其存储在Steam云中。当您在多台设备上玩Steam游戏时,此功能非常有用。只需在所有设备上使用您的Steam凭据登录,安装游戏即可!所有用户设置、游戏保存数据、您朋友的聊天框等等。修复1–检查游戏是否受支持所有Steam游戏均不支持Steam云存档功能。因此,您必须检查游戏是否真的支持此功能。1.在您的系统上打开Steam应用程序。2.现在,您必须使用您的凭据登录Steam。3.然后,输入您的用户名和密码,然后点击“登录

联想小新一键恢复小孔还原系统教程联想小新一键恢复小孔还原系统教程Jul 15, 2023 am 10:09 AM

  当我们的电脑遇到问题时,很多小伙伴都会使用恢复出厂设置来还原系统解决问题,今天要讲的就是联想电脑一键恢复系统的特点,我们都知道联想笔记本上都有一个小孔,大部分小伙伴都不知道这个小孔的用处,接下来小编就把联想一键恢复小孔的使用方法带给大家。  联想小新一键恢复小孔:  1.首先我们准备一个卡针,然后使用卡针捅一下机器左侧的一键恢复孔。  2.接着使用键盘上的按键选择“systemrecovery”,按回车。  3.在选择一个选项页面中,我们选择“疑难解答”。  4.我们点击“重置此电脑”选项。

Windows 11 Recovery USB:下载、安装和创建Windows 11 Recovery USB:下载、安装和创建Jul 05, 2023 pm 01:05 PM

您的PC有时会遇到问题,导致难以正常启动。在这种情况下,您可以使用Windows11恢复USB恢复它。虽然这一切看起来简单明了,但您仍然需要知道如何创建和使用恢复USB。在本指南中,我们将引导您完成轻松执行此任务所需的步骤。我可以下载Windows11恢复USB吗?如果您的操作系统完全崩溃,您可以从另一台运行良好的PC下载Windows11恢复USB。但是,要从中创建恢复驱动器的电脑必须与你的电脑具有相同的体系结构。最好的选择仍然是在PC正常运行时从PC创建USB。这消除了任何兼容性风险。或者,

教大家win7电脑怎么恢复出厂设置教大家win7电脑怎么恢复出厂设置Jul 12, 2023 pm 03:09 PM

出厂设置恢复到出厂时的默认状态,删除所有的文件和软件。在手机上很多朋友都会设置出厂设置,那么你们知道电脑如何恢复出厂设置吗?下面小编就以win7为例和大家分享一下过程吧。1、首先打开下电脑,看到win7图标点开。2、接着我们打开下【控制面板】。3、然后我们找到【系统】点击并打开。4、在系统窗口中我们点击【系统保护】。5、接着我们选择【系统还原】选项。6、接着我们来到这个界面,点击下一步即可。7、选择还原点,一般都是默认的初始的状态。8、最后我们来到这个界面,点击完成就可以进入到还原过程。以上就是

win11改win10系统教程的详细介绍win11改win10系统教程的详细介绍Jul 08, 2023 pm 09:21 PM

微软6月24号正式公布了win11系统,可以看到用户界面、开始菜单等和Windows10X中发现的非常相似。有的朋友在使用预览版的时候发现用的不习惯,想要改win10系统开使用,那么我们要如何操作呢,下面我们就来看看win11改win10系统教程,一起来学习一下吧。1、第一步是从Windows11打开新设置。在这里,您需要转到图像中显示的系统设置。2、在系统设置下,选择“恢复”选项。在这里,您将能够看到“以前版本的窗口”选项。您还可以在它旁边看到一个“返回”按钮,单击此按钮。3、您可以指定要返回

windows7键盘失灵应该怎么办windows7键盘失灵如何恢复windows7键盘失灵应该怎么办windows7键盘失灵如何恢复Jul 15, 2023 am 09:21 AM

有一些笔记本windows7顾客遇到了键盘失灵的情况,导致很多操作过程都不能进行,这种事情要怎么办呢?如果只是一部分功能按键不能使用得话,你可以尝试消除功能按键。若不是得话,你也就打开系统属性提示框,进入网络适配器,之后找寻电脑的键盘机械设备,鼠标点击选择升级驱动程序,以后按照步骤去重装一下电脑键盘的驱动程序就能够。windows7键盘失灵应该怎么办:一、消除笔记本键盘看一下是不是具备一些键按下去没法弹上来,这种事情还会继续导致其他键不能用;二、修改笔记本驱动1.依据“我的电脑”打开系统属性,选

如何使用ThinkPHP6实现数据库备份与恢复如何使用ThinkPHP6实现数据库备份与恢复Jun 20, 2023 pm 07:25 PM

在开发业务系统过程中,数据库是非常重要的一环。因此,对数据库进行备份和恢复是非常必要的操作。本文将结合ThinkPHP6框架实例,介绍如何使用ThinkPHP6实现数据库备份与恢复。一、数据库备份1.1环境准备在进行数据库备份之前,需要确认如下几点:1、需要设置好mysql数据库的bin目录地址,并把其路径加入系统Path变量中;2、需要安装好mysqld

如何应对Linux系统中的文件系统损坏和恢复问题如何应对Linux系统中的文件系统损坏和恢复问题Jun 29, 2023 pm 08:01 PM

如何应对Linux系统中的文件系统损坏和恢复问题在使用Linux系统时,由于各种原因,文件系统可能会遭受损坏,这可能导致数据丢失和系统无法正常运行。因此,我们需要知道如何应对文件系统损坏和恢复问题,以保护我们的数据和系统的稳定性。如何判断文件系统是否损坏?当文件系统受损时,将会出现一些明显的迹象。例如,文件或文件夹无法访问、文件大小异常、系统启动慢或无法启动

See all articles

ホットAIツール

Undresser.AI Undress

Undresser.AI Undress

リアルなヌード写真を作成する AI 搭載アプリ

AI Clothes Remover

AI Clothes Remover

写真から衣服を削除するオンライン AI ツール。

Undress AI Tool

Undress AI Tool

脱衣画像を無料で

Clothoff.io

Clothoff.io

AI衣類リムーバー

AI Hentai Generator

AI Hentai Generator

AIヘンタイを無料で生成します。

ホットツール

Dreamweaver Mac版

Dreamweaver Mac版

ビジュアル Web 開発ツール

SublimeText3 中国語版

SublimeText3 中国語版

中国語版、とても使いやすい

SublimeText3 Mac版

SublimeText3 Mac版

神レベルのコード編集ソフト(SublimeText3)

SublimeText3 英語版

SublimeText3 英語版

推奨: Win バージョン、コードプロンプトをサポート!

DVWA

DVWA

Damn Vulnerable Web App (DVWA) は、非常に脆弱な PHP/MySQL Web アプリケーションです。その主な目的は、セキュリティ専門家が法的環境でスキルとツールをテストするのに役立ち、Web 開発者が Web アプリケーションを保護するプロセスをより深く理解できるようにし、教師/生徒が教室環境で Web アプリケーションを教え/学習できるようにすることです。安全。 DVWA の目標は、シンプルでわかりやすいインターフェイスを通じて、さまざまな難易度で最も一般的な Web 脆弱性のいくつかを実践することです。このソフトウェアは、