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I searched the portal but could not find the solution about my problem which is WLC 526's corrupted image. Available commands :
blocklist FILE boot
bootp [--with-configfile] cat FILE
chainloader [--force] FILE color NORMAL [HIGHLIGHT]
configfile FILE dhcp
find FILENAME geometry DRIVE [CYLINDER HEAD SECTOR [
halt [--no-apm] help [--all] [PATTERN ...]
hide PARTITION ifconfig [--address=IP] [--gateway=IP]
initrd FILE [ARG ...] kernel [--no-mem-option] [--type=TYPE]
makeactive map TO_DRIVE FROM_DRIVE
md5crypt module FILE [ARG ...]
modulenounzip FILE [ARG ...] pager [FLAG]
partnew PART TYPE START LEN parttype PART TYPE
root [DEVICE [HDBIAS]] rootnoverify [DEVICE [HDBIAS]]
serial [--unit=UNIT] [--port=PORT] [-- setkey [TO_KEY FROM_KEY]
setup [--prefix=DIR] [--stage2=STAGE2_ terminal [--dumb] [--no-echo] [--no-ed
terminfo [--name=NAME --cursor-address testvbe MODE
tftpserver IPADDR unhide PARTITION
uppermem KBYTES vbeprobe [MODE]
grub> initrd FILE
Error 19: Linux kernel must be loaded before initrd
How can I recover WLC' s image?
Actually, you can't. Contact TAC and have your WLC replaced.
Attempt connecting via cli and breaking the boot process. You should have the ability to boot to the backup image on the controller. That is, if it has one.
Thanks for the response. It seems you can not boot from back-up image in WLC 526
I sent my product to Cisco.