ASA-5508 File system not supported

[ABaker94985]

We have an ASA-5508 that was running FTD, but for a location we're placing this at, we decided to migrate this to ASA firmware. I used the following commands after deleting the contents of the flash:

rommon 0 > address 10.86.118.4
rommon 1 > netmask 255.255.255.0
rommon 2 > server 10.86.118.1
rommon 3 > gateway 10.86.118.21
rommon 4 > file asa984-32-lfbff-k8.SPA
rommon 5 > set
ADDRESS=10.86.118.4
NETMASK=255.255.255.0
GATEWAY=10.86.118.1
SERVER=10.86.118.21
IMAGE=asa984-32-lfbff-k8.SPA
CONFIG=
PS1="rommon ! > "

rommon 6 > sync
rommon 7 > tftpdnld
ADDRESS: 10.86.118.4
NETMASK: 255.255.255.0
GATEWAY: 10.86.118.1
SERVER: 10.86.118.21
IMAGE: asa984-32-lfbff-k8.SPA
MACADDR: 84:b2:61:b1:92:e6
VERBOSITY: Progress
RETRY: 40
PKTTIMEOUT: 7200
BLKSIZE: 1460
CHECKSUM: Yes
PORT: GbE/1
PHYMODE: Auto Detect

System boots OK and I can read the flash, but it's booting from the tftp device. I put the same version in flash, reboot, and the ASA console displays "File system not supported." I'm not sure what is going on here, so can someone shed any light on this? Thanks

[balaji.bandi]

romomon 1 > erase disk0:

then follow the steps you mentioned,

[ABaker94985]

I forgot to mention this in the original post, but I've already done that.

[ABaker94985 · Accepted solution]

I just figured out the problem. I was still able to use the above process to boot the ASA up, since the firmware was in memory, after which I was able to do "format disk0:", re-tftp'ed the firmware into flash, and now it boots OK. Thanks for your input.

[balaji.bandi]

suggest to follow guide step by step :

https://www.petenetlive.com/KB/Article/0001496