ASA FirePower 5508x Recovery image

[rh.michaellee]

Cisco Systems ROMMON, Version 1.1.15, RELEASE SOFTWARE
Copyright (c) 1994-2019 by Cisco Systems, Inc.
Compiled Sat 03/30/2019 7:00:46.51 by wchen64

Current image running: Boot ROM0
Last reset cause: PowerOn
DIMM Slot 0 : Present
DIMM Slot 1 : Present

Platform ASA5508 with 8192 Mbytes of main memory
MAC Address: 00:5d:73:50:33:d7

Use BREAK or ESC to interrupt boot.
Use SPACE to begin boot immediately.

File system not supported
Attempt autoboot: "boot disk0:"
File system not supported
boot: cannot determine first file name on device "disk0:"
autoboot: All boot attempts have failed.
autoboot: Restarting the system.

Why are ASA FirePower 5508x reporting file system not supported on device "disk0" ? It is very strange how can people to solving it. 

[Sheraz.Salim]

Hi please see this link here you might not install the boot image in flash that is why its giving you the error.

what is the software code you running on the ASA and which sfr module version you trying to install in flash. also could you display your disk0 or flash

command is show flash:

[rh.michaellee]

mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
missing codepage or helper program, or other error

In some cases useful info is found in syslog - try
dmesg | tail or so.
mount: /dev/sdb1 is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
missing codepage or helper program, or other error