ローカル マシンからすべての mysql データベースを失ったように見えるクライアントがいます。それらは、私がやや慣れていないMac上にあり、Ubuntu上にあります。データベース フォルダには .MYD または .MYI ファイルはなく、.frm ファイルのみでした。私は彼らに mysql とsight フォルダ (sight は必要なデータベースです)、そして ibdata1、ib_logfile0、および ib_logfile1 ファイルを圧縮してもらいました。mysql 用に 2 番目のフォルダー /var/lib/mysql2 を作成し、ファイルとフォルダーをそこに移動しました。新しいフォルダーとファイルを mysql:mysql に chown し、/etc/mysql/my.cnf を編集して新しいフォルダーを指すようにし、/etc/apparmor.d/usr.sbin.mysqld を編集してから、apparmor と mysql を再起動しました。ただし、mysql エラー ログに次のエラーが表示されます。
130308 17:38:16 [Note] Plugin 'FEDERATED' is disabled.
130308 17:38:16 InnoDB: Initializing buffer pool, size = 8.0M
130308 17:38:16 InnoDB: Completed initialization of buffer pool
InnoDB: The log sequence number in ibdata files does not match
InnoDB: the log sequence number in the ib_logfiles!
130308 17:38:16 InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files...
InnoDB: Restoring possible half-written data pages from the doublewrite
InnoDB: buffer...
130308 17:38:16 InnoDB: Error: space id and page n:o stored in the page
InnoDB: read in are 0:589824, should be 0:7!
130308 17:38:16 InnoDB: Error: page 589824 log sequence number 786432 0
InnoDB: is in the future! Current system log sequence number 0 63932940.
InnoDB: Your database may be corrupt or you may have copied the InnoDB
InnoDB: tablespace but not the InnoDB log files. See
InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-innodb-recovery.html
InnoDB: for more information.
InnoDB: Database page corruption on disk or a failed
InnoDB: file read of page 7.
InnoDB: You may have to recover from a backup.
130308 17:38:16 InnoDB: Page dump in ascii and hex (16384 bytes):
len 16384; hex 0008000000090000000a0000000b0000000c00000000000000000000000202720000 (snipped because this goes on for a while)
Tg 9 <o q E i F / D ;InnoDB: End of page dump
130308 17:38:16 InnoDB: Page checksum 4146777650, prior-to-4.0.14-form checksum 1800374066
InnoDB: stored checksum 524288, prior-to-4.0.14-form stored checksum 0
InnoDB: Page lsn 786432 0, low 4 bytes of lsn at page end 0
InnoDB: Page number (if stored to page already) 589824,
InnoDB: space id (if created with >= MySQL-4.1.1 and stored already) 0
InnoDB: Page may be a freshly allocated page
InnoDB: Database page corruption on disk or a failed
InnoDB: file read of page 7.
InnoDB: You may have to recover from a backup.
InnoDB: It is also possible that your operating
InnoDB: system has corrupted its own file cache
InnoDB: and rebooting your computer removes the
InnoDB: error.
InnoDB: If the corrupt page is an index page
InnoDB: you can also try to fix the corruption
InnoDB: by dumping, dropping, and reimporting
InnoDB: the corrupt table. You can use CHECK
InnoDB: TABLE to scan your table for corruption.
InnoDB: See also http://dev.mysql.com/doc/refman/5.1/en/forcing-innodb-recovery.html
InnoDB: about forcing recovery.
InnoDB: Ending processing because of a corrupt database page.
innodb_force_recovery = 4 を my.cnf ファイルに追加しようとしましたが、さまざまなエラーが大量に生成されます。
130308 17:48:30 [Note] Plugin 'FEDERATED' is disabled.
130308 17:48:30 InnoDB: Initializing buffer pool, size = 8.0M
130308 17:48:30 InnoDB: Completed initialization of buffer pool
InnoDB: The log sequence number in ibdata files does not match
InnoDB: the log sequence number in the ib_logfiles!
130308 17:48:30 InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files...
InnoDB: Restoring possible half-written data pages from the doublewrite
InnoDB: buffer...
130308 17:48:30 InnoDB: Error: space id and page n:o stored in the page
InnoDB: read in are 0:589824, should be 0:7!
130308 17:48:30 InnoDB: Error: page 589824 log sequence number 786432 0
InnoDB: is in the future! Current system log sequence number 0 63932940.
InnoDB: Your database may be corrupt or you may have copied the InnoDB
InnoDB: tablespace but not the InnoDB log files. See
InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-innodb-recovery.html
InnoDB: for more information.
InnoDB: Database page corruption on disk or a failed
InnoDB: file read of page 7.
InnoDB: You may have to recover from a backup.
それが助けになるなら、私はそれを提供することができます。ここから何を試すかについての提案は大歓迎です、ありがとう。
編集：ここの手順に従ってみましたが、彼が使用したコマンドラインシーケンスを使用してmysqlを実行するのに問題がありました：
http://blog.shiraj.com/2012/10/extract-data-from-mysql-ibdata1-data-file/