分类目录归档：Linux

Failed to open \EFI\redhat\grubx64.efi – Not Found 故障处理

发表于 2025 年 10 月 4 日 由 惜分飞

由于某种原因导致linux的grubx64.efi文件丢失,系统重启报错（Failed to open \EFI\redhat\grubx64.efi – Not Found）
grubx64-not-found

grubx64.efi 是 64 位 UEFI 系统 下的 GRUB 引导程序核心文件,作用是启动操作系统.现在系统启动报该文件丢失,导致系统无法正常引导启动.对于这样的情况,比较简单的方法就是使用相同版本的操作系统iso文件进入救援模式,然后把grubx64.efi文件拷贝进去,具体操作步骤:
1.使用光盘启动,并进入Troubleshooting –> 并回车
troubleshooting
2. 选择:Rescue a Oracle Linux system 并回车
rescue
3. 选择1) Continue ,然后回车继续执行
QQ20251004-090450
4. 可以看到原系统分区被挂载在/mnt/sysimage下面的相关挂载点
QQ20251004-090550
5. 输入chroot /mnt/sysimage按照原系统方式进行挂载
QQ20251004-090617
6. 确认grubx64.efi文件丢失
QQ20251004-090645
7. 挂载系统盘到/media,并确认grubx64.efi文件在系统盘中存在
QQ20251004-090804
8. 拷贝系统盘中的grubx64.efi到/boot/efi/EFI/redhat/中
QQ20251004-091128
9. 退出救援模式,系统启动正常,完成grubx64.efi文件丢失修复故障

发表在 Linux | 标签为 , | 评论关闭

Linux 8 修改网卡名称

发表于 2024 年 9 月 3 日 由 惜分飞

在某些情况下,我们希望通过修改网卡的名称,从而避免应用层面的一些配置(比如oracle rac 网络从千兆换成万兆,我们直接把万兆网卡的名称修改和之前使用的网卡名称一致,集群层面不用做任何配置),这里做一个测试,验证在linux 8（redhat/oracle linux/Rocky/AlmaLinux/centos等）修改网卡名称可行性:
查看当前主机网卡名称情况(有两个网卡ens160和ens192)

[root@xifenfeidg network-scripts]# cat /etc/redhat-release 
Red Hat Enterprise Linux release 8.9 (Ootpa)
[root@xifenfeidg network-scripts]# cat /etc/oracle-release 
Oracle Linux Server release 8.9
[root@xifenfeidg network-scripts]# ifconfig
ens160: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.118.141  netmask 255.255.255.0  broadcast 192.168.118.255
        inet6 fe80::20c:29ff:fe2d:1c85  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:2d:1c:85  txqueuelen 1000  (Ethernet)
        RX packets 265118  bytes 392933574 (374.7 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 24828  bytes 1374591 (1.3 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ens192: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.222.18  netmask 255.255.255.0  broadcast 192.168.222.255
        inet6 fe80::20c:29ff:fe2d:1c8f  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:2d:1c:8f  txqueuelen 1000  (Ethernet)
        RX packets 165  bytes 18748 (18.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 127  bytes 21755 (21.2 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 6403  bytes 648853 (633.6 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 6403  bytes 648853 (633.6 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 52:54:00:ab:b4:34  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[root@xifenfeidg ~]# nmcli d s
DEVICE  TYPE      STATE      CONNECTION 
ens160  ethernet  connected  ens160     
ens192  ethernet  connected  ens192     
virbr0  bridge    unmanaged  --         
lo      loopback  unmanaged  --   

[root@xifenfeidg ~]# cd /etc/sysconfig/network-scripts/
[root@xifenfeidg network-scripts]# ls
ifcfg-ens160  ifcfg-ens192

尝试把ens160修改为ens191,删除ens160设备

[root@xifenfeidg network-scripts]# nmcli connection delete ens160
Connection 'ens160' (ae9669d8-3db3-424e-8a0e-41d8b05197d0) successfully deleted.
[root@xifenfeidg network-scripts]# ifconfig
ens160: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 00:0c:29:2d:1c:85  txqueuelen 1000  (Ethernet)
        RX packets 291009  bytes 431437623 (411.4 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 27085  bytes 1499570 (1.4 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ens192: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.222.18  netmask 255.255.255.0  broadcast 192.168.222.255
        inet6 fe80::20c:29ff:fe2d:1c8f  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:2d:1c:8f  txqueuelen 1000  (Ethernet)
        RX packets 193  bytes 21530 (21.0 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 156  bytes 27505 (26.8 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 6427  bytes 650593 (635.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 6427  bytes 650593 (635.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 52:54:00:ab:b4:34  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[root@xifenfeidg network-scripts]# nmcli d s
DEVICE  TYPE      STATE         CONNECTION 
ens192  ethernet  connected     ens192     
ens160  ethernet  disconnected  --         
virbr0  bridge    unmanaged     --         
lo      loopback  unmanaged     --

增加ens191设备(注意mac地址使用之前ens160)

[root@xifenfeidg network-scripts]# nmcli connection add type ethernet con-name ens191 ifname ens191  mac 00:0c:29:2d:1c:85
Connection 'ens191' (62a5fd83-8dc9-407d-83cc-1327d400fa0b) successfully added.
[root@xifenfeidg network-scripts]# 
[root@xifenfeidg network-scripts]# nmcli d s
DEVICE  TYPE      STATE         CONNECTION 
ens192  ethernet  connected     ens192     
ens160  ethernet  disconnected  --         
virbr0  bridge    unmanaged     --         
lo      loopback  unmanaged     --

重启主机

[root@xifenfeidg network-scripts]# reboot

Activate the web console with: systemctl enable --now cockpit.socket

Last login: Tue Sep  3 14:12:20 2024 from 192.168.222.1

重启之后登录主机查看网络信息(确认网卡名称从ens160修改为ens191)

[root@xifenfeidg ~]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens191: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:0c:29:2d:1c:85 brd ff:ff:ff:ff:ff:ff
    altname enp3s0
    inet 192.168.118.141/24 brd 192.168.118.255 scope global dynamic noprefixroute ens191
       valid_lft 1788sec preferred_lft 1788sec
    inet6 fe80::30e4:c5bf:692a:2753/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
3: ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:0c:29:2d:1c:8f brd ff:ff:ff:ff:ff:ff
    altname enp11s0
    inet 192.168.222.18/24 brd 192.168.222.255 scope global noprefixroute ens192
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe2d:1c8f/64 scope link 
       valid_lft forever preferred_lft forever
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 52:54:00:ab:b4:34 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
[root@xifenfeidg ~]# cd /etc/sysconfig/network-scripts/
[root@xifenfeidg network-scripts]# ls -ltr
total 8
-rw-r--r--. 1 root root 308 Jul 31 05:04 ifcfg-ens192
-rw-r--r--. 1 root root 300 Sep  3 14:16 ifcfg-ens191
[root@xifenfeidg network-scripts]# nmcli d s
DEVICE  TYPE      STATE                   CONNECTION 
ens191  ethernet  connected               ens191     
ens192  ethernet  connected               ens192     
virbr0  bridge    connected (externally)  virbr0     
lo      loopback  unmanaged               --
发表在 Linux | 标签为 | 评论关闭

Oracle误删除数据文件恢复

发表于 2024 年 2 月 20 日 由 惜分飞

有客户通过sftp误删除oracle数据文件,咨询我们是否可以恢复,通过远程上去检查,发现运气不错,数据库还没有crash,通过句柄找到被删除文件

oracle@cwgstestdb[testwctdb]/proc/20611/fd$ls -ltr
total 0
lr-x------ 1 oracle oinstall 64 Feb 20 14:03 9 -> /oracle/db19c/rdbms/mesg/oraus.msb
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 8 -> /oracle/db19c/dbs/lkTESTWCTDB
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 7 -> /oracle/db19c/dbs/hc_testwctdb.dat
lr-x------ 1 oracle oinstall 64 Feb 20 14:03 6 -> /var/lib/sss/mc/passwd
lr-x------ 1 oracle oinstall 64 Feb 20 14:03 5 -> /proc/20611/fd
lr-x------ 1 oracle oinstall 64 Feb 20 14:03 4 -> /oracle/db19c/rdbms/mesg/oraus.msb
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 305 -> /oradata/ftms_zx_test01_data8.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 304 -> /oradata/ftms_zx_test01_data7.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 303 -> /oradata/ftms_zx_test01_data6.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 302 -> '/oradata/ftms_zx_test01_data5.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 301 -> '/oradata/ftms_zx_test01_data4.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 300 -> '/oradata/ftms_zx_test01_data3.dbf (deleted)'
lr-x------ 1 oracle oinstall 64 Feb 20 14:03 3 -> /dev/null
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 299 -> '/oradata/ftms_zx_test01_data2.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 298 -> '/oradata/ftms_zx_test01_data1.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 297 -> '/oradata/ftms_zx_test01_data.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 296 -> /oradata/ftms_zx_test_data.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 295 -> '/oradata/TESTWCTDB/sd.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 294 -> /oradata/TESTWCTDB/ftms_cs3_jiamiceshi
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 293 -> /langchao/dumpdata/FTMS_CS_TDE.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 292 -> /oradata/ftms_zx_test01.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 291 -> /langchao/dumpdata/FTMS_CS_DATA4.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 290 -> '/oradata/ftms_zx_data5.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 289 -> /langchao/dumpdata/FTMS_CS_DATA3.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 288 -> /langchao/dumpdata/FTMS_CS_DATA2.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 287 -> /langchao/dumpdata/FTMS_JD_DATA2.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 286 -> '/oradata/LCBIPECDS _TEMP_DAT.DBF'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 285 -> '/oradata/rTB_MBFE_TEMP (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 284 -> '/oradata/TESTWCTDB/temp01.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 283 -> '/oradata/ftms_credit_data5.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 282 -> /oradata/ftmshtdata.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 281 -> '/oradata/dump_data/FTMS_CSBF_DATA.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 280 -> /langchao/dumpdata/FTMS_NEWBL2_DATA.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 279 -> /langchao/dumpdata/FTMS_CS_DATA.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 278 -> /oradata/LCBIPECDS_DAT.DBF
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 277 -> /oradata/rTB_MBFE
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 276 -> /oradata/udpcount_02.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 275 -> /oradata/udpcount_01.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 274 -> '/oradata/ftms_credit_data_6.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 273 -> /langchao/dumpdata/FTMS_JD_DATA.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 272 -> '/oradata/ftms_old.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 271 -> '/oradata/ftms_credit_data2.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 270 -> /langchao/dumpdata/PJDIP_DATA.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 269 -> '/oradata/ftms_credit_data.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 268 -> /langchao/dumpdata/FTMS_NEWBL_DATA.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 267 -> '/oradata/ftms_zx_data4.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 266 -> /langchao/dumpdata/QIANZHANG_DATA.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 265 -> '/oradata/ftms_zx_data3.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 264 -> '/oradata/ftms_zx_data2.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 263 -> '/oradata/ftms_zx_data.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 262 -> /langchao/dumpdata/FTMSDIP_DATA.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 261 -> /oradata/TESTWCTDB/users01.dbf
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 260 -> '/oradata/TESTWCTDB/undotbs01.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 259 -> '/oradata/TESTWCTDB/sysaux01.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 258 -> '/oradata/TESTWCTDB/system01.dbf (deleted)'
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 257 -> /oradata/TESTWCTDB/control02.ctl
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 256 -> /oradata/TESTWCTDB/control01.ctl
l-wx------ 1 oracle oinstall 64 Feb 20 14:03 2 -> /dev/null
lrwx------ 1 oracle oinstall 64 Feb 20 14:03 10 -> 'socket:[823411]'
l-wx------ 1 oracle oinstall 64 Feb 20 14:03 1 -> /dev/null
lr-x------ 1 oracle oinstall 64 Feb 20 14:03 0 -> /dev/null

查询数据文件大小（被删除的文件文件大小通过v$datafile查询为0）

SQL> select name,bytes/1024/1024/1024 from v$datafile;

NAME                                                                             BYTES/1024/1024/1024
-------------------------------------------------------------------------------- --------------------
/oradata/TESTWCTDB/system01.dbf                                                                     0
/oradata/TESTWCTDB/sysaux01.dbf                                                                     0
/oradata/TESTWCTDB/undotbs01.dbf                                                                    0
/oradata/TESTWCTDB/users01.dbf                                                             .004882813
/langchao/dumpdata/FTMSDIP_DATA.dbf                                                                 3
/oradata/ftms_zx_data.dbf                                                                           0
/oradata/ftms_zx_data2.dbf                                                                          0
/oradata/ftms_zx_data3.dbf                                                                          0
/langchao/dumpdata/QIANZHANG_DATA.dbf                                                               5
/oradata/ftms_zx_data4.dbf                                                                          0
/langchao/dumpdata/FTMS_NEWBL_DATA.dbf                                                             30
/oradata/ftms_credit_data.dbf                                                                       0
/langchao/dumpdata/PJDIP_DATA.dbf                                                                  20
/oradata/ftms_credit_data2.dbf                                                                      0
/oradata/ftms_old.dbf                                                                               0
/langchao/dumpdata/FTMS_JD_DATA.dbf                                                                15
/oradata/ftms_credit_data_6.dbf                                                                     0
/oradata/udpcount_01.dbf                                                                            5
/oradata/udpcount_02.dbf                                                                            5
/oradata/rTB_MBFE                                                                              .03125
/oradata/LCBIPECDS_DAT.DBF                                                                         .5
/langchao/dumpdata/FTMS_CS_DATA.dbf                                                                30
/langchao/dumpdata/FTMS_NEWBL2_DATA.dbf                                                            30
/oradata/dump_data/FTMS_CSBF_DATA.dbf                                                               0
/oradata/ftmshtdata.dbf                                                                    .087890625
/oradata/ftms_credit_data5.dbf                                                                      0
/langchao/dumpdata/FTMS_JD_DATA2.dbf                                                                3
/langchao/dumpdata/FTMS_CS_DATA2.dbf                                                       31.9999847
/langchao/dumpdata/FTMS_CS_DATA3.dbf                                                               10
/oradata/ftms_zx_data5.dbf                                                                          0
/langchao/dumpdata/FTMS_CS_DATA4.dbf                                                        12.109375
/oradata/ftms_zx_test01.dbf                                                                19.0527344
/langchao/dumpdata/FTMS_CS_TDE.dbf                                                                  1
/oradata/TESTWCTDB/ftms_cs3_jiamiceshi                                                     .029296875
/oradata/TESTWCTDB/sd.dbf                                                                           0
/oradata/ftms_zx_test_data.dbf                                                             .009765625
/oradata/ftms_zx_test01_data.dbf                                                                    0
/oradata/ftms_zx_test01_data1.dbf                                                                   0
/oradata/ftms_zx_test01_data2.dbf                                                                   0
/oradata/ftms_zx_test01_data3.dbf                                                                   0
/oradata/ftms_zx_test01_data4.dbf                                                                   0
/oradata/ftms_zx_test01_data5.dbf                                                                   0
/oradata/ftms_zx_test01_data6.dbf                                                          12.5976563
/oradata/ftms_zx_test01_data7.dbf                                                          9.08203125
/oradata/ftms_zx_test01_data8.dbf                                                                6.25

45 rows selected.

把数据文件拷贝回来

cp /proc/20611/fd/302   /langchao/orabak/
cp /proc/20611/fd/301   /langchao/orabak/
cp /proc/20611/fd/300   /langchao/orabak/
cp /proc/20611/fd/299   /langchao/orabak/
cp /proc/20611/fd/298   /langchao/orabak/
cp /proc/20611/fd/297   /langchao/orabak/
cp /proc/20611/fd/295   /langchao/orabak/
cp /proc/20611/fd/290   /langchao/orabak/
cp /proc/20611/fd/285   /langchao/orabak/
cp /proc/20611/fd/284   /langchao/orabak/
cp /proc/20611/fd/283   /langchao/orabak/
cp /proc/20611/fd/281   /langchao/orabak/
cp /proc/20611/fd/274   /langchao/orabak/
cp /proc/20611/fd/272   /langchao/orabak/
cp /proc/20611/fd/271   /langchao/orabak/
cp /proc/20611/fd/269   /langchao/orabak/
cp /proc/20611/fd/267   /langchao/orabak/
cp /proc/20611/fd/265   /langchao/orabak/
cp /proc/20611/fd/264   /langchao/orabak/
cp /proc/20611/fd/263   /langchao/orabak/
cp /proc/20611/fd/260   /langchao/orabak/
cp /proc/20611/fd/259   /langchao/orabak/
cp /proc/20611/fd/258   /langchao/orabak/

由于涉及system表空间数据文件被删除,无法在open情况下直接操作,直接关闭数据库,启动到mount状态,重命名数据文件路径,recover数据文件,open库,恢复完成
参考以前类似恢复:
Solaris rm datafile recovery—利用句柄误删除数据文件恢复
如果数据库已经关闭,需要考虑以下类似恢复方式:
dbca删除库和rm删库恢复
记录一次rm -rf 删除数据文件异常恢复

发表在 Linux, Oracle备份恢复 | 标签为 , , , | 评论关闭