I'll tell a much easier way to corrupt table. Open the data or index file, remove some text data in the file and save. It will show it a corrupt. ( Only for test setups ).
On Tue, Oct 19, 2010 at 10:11 PM, Hank <hes...@gmail.com> wrote: > It's easy to corrupt the MYISAM index (MYI) file... I do something > like this in linux -- assuming your table is not tiny, and mysql isn't > running or you have a lock on the table: > > dd if=table.MYI of=table2.MYI bs=2048 count=100 > > then copy table2.MYI over table.MYI and then "flush tables" and then > unlock. > > Your table will be unreadable until you rebuild the index with REPAIR > TABLE or myisamchk. The MYD file will remain intact. > > If your MYI file is smaller than 200k, then just reduce the count=#. > > -Hank > > > > > On Tue, Oct 19, 2010 at 7:53 PM, Steve Staples <sstap...@mnsi.net> > wrote: > > > >> Ok, been googling all morning, and keep getting the same post (on > >> multiple different sites). > >> > >> Is there a way, where i corrupt a table purposely? I've tried playing > >> with the .MYD file, and yeah, it "marks" it deleted under the check > >> routine, but the table is still readable/writable, just doesn't have > >> any info when selecting it... > >> > >> is there another way to corrupt the table, where you can't even select > >> from it, or the responce back from a select is an error? > >> > >> > >> > > -- > MySQL General Mailing List > For list archives: http://lists.mysql.com/mysql > To unsubscribe: > http://lists.mysql.com/mysql?unsub=sureshkumar...@gmail.com > > -- Thanks Suresh Kuna MySQL DBA
