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Simon O'Sullivan
Beginner

ASA5508 file system unsupported when trying to load image via Rommon

Hi, I tested out FTD on a 5508. I want to roll it back to normal ASA but I can't get the image to boot via the normal rommon recovery.

The images copies via tftp, but then won't boot automatically.

If I try "boot" I get:

"File system not supported"

Anyone any ideas?

Log below

rommon 15 > tftp ?
ADDRESS: 10.47.20.99
NETMASK: 255.255.255.0
GATEWAY: 10.47.20.1
SERVER: 10.47.20.100
IMAGE: asdm-762-150.bin
MACADDR: 00:f6:63:47:82:59
VERBOSITY: Progress
RETRY: 40
PKTTIMEOUT: 7200
BLKSIZE: 1460
CHECKSUM: Yes
PORT: GbE/1
PHYMODE: Auto Detect

Receiving asdm-762-150.bin from 10.47.20.100!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
File reception completed.
Boot buffer bigbuf=3ffff018
Boot image size = 26053720 (0x18d8c58) bytes
[image size] 26053720
[MD5 signaure] eec67ea0f38aa249b18ef6f4e0667ebe
rommon 16 > boot
File system not supported
boot: cannot determine first file name on device "disk0:"

2 REPLIES 2
vijrajar
Cisco Employee

Hi Simon,

I see that you are trying to boot the ASA with ASDM image which is incorrect.

Please try the same steps with the correct ASA iOS image.

The command would be "tftpdnld" and also the iOS image will have the extension (.SPA) for 5508 platform.

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