My db in archivelog mode, controlfile autobackup is on, then i have taken 1 bkp using rman, immediately deleted the spfile,then
startup nomount force;
set dbid=11111111
restore spfile from autobackup;
it shows error
channel ORA_DISK_1: looking for AUTOBACKUP on day: 20120229
channel ORA_DISK_1: looking for AUTOBACKUP on day: 20120228
channel ORA_DISK_1: looking for AUTOBACKUP on day: 20120227
channel ORA_DISK_1: looking for AUTOBACKUP on day: 20120226
channel ORA_DISK_1: looking for AUTOBACKUP on day: 20120225
channel ORA_DISK_1: looking for AUTOBACKUP on day: 20120224
channel ORA_DISK_1: looking for AUTOBACKUP on day: 20120223
channel ORA_DISK_1: no AUTOBACKUP in 7 days found
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 02/29/2012 20:42:54
RMAN-06172: no AUTOBACKUP found or specified handle is not a valid copy or piece
i also use change the system date by forword it to 29th feb from 18th feb
also tried maxdays and maxseq, but error is same, can anybody help................