How can I recover a S3100 S3148P switch from U-Boot or the NetBSD prompt ?

How can I recover a S3100 S3148P switch from U-Boot or the NetBSD prompt?

I am a student and I have this S3148P that is broken. I have never worked with Dell switches before so I am interested in understanding the architecture.

U-Boot 2012.10(Dell) (Jan 26 2017 - 20:55:51)

Booting FTOS image
## Booting kernel from Legacy Image at 700000f0 ...
   Image Name:   netbsd                          
   Created:      1970-01-01   0:00:00 UTC
   Image Type:   ARM NetBSD Kernel Image (gzip compressed)
   Data Size:    4514744 Bytes
   Load Address: 00100000
   Entry Point:  00100000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
## Transferring control to NetBSD stage-2 loader (at address 00100000) ...
@
NetBSD/evbarm (bcm53xx) booting ...
initarm: Configuring system, CLIDR=1110000003 CTR=0x83338003 PMUSERSR=0
[ Kernel symbol table missing! ]
Loaded initial symtab at 0x806244ac, strtab at 0x80666cdc, # entries 17010

Dell Networking OS Release 9.14(2.20)
 NetBSD 7.1.2 (S3100) #1: Fri Apr  7 10:26:52 PDT 2023
total memory = 2048 MB
avail memory = 1979 MB
sysctl_createv: sysctl_create(machine_arch) returned 17
kern.module.path=/stand/evbarm/7.1/modules
mainbus0 (root)

Created a iProc BCM switch device BA=0x48000000 IRQ=194 device=0xb340

LOADS OK NO ERRORS UNTIL 

boot device: <unknown>
root on md0a dumps on netdisk0a
WARNING: clock gained 238 days
route: writing to routing socket: File exists
bootline open failed :: Device not configured
iled :: Device nc14be808

ot configured
ootline open fai

led :: Device not configured
bootline open failed :: Device not configured
bootline open failed :: Device not configured
/etc/rc.cpload[25]: [: Error: unexpected operator/operand
bootline open failed :: Device not configured
Could not fetch bootline, aborting.
rpmAppLoad failed...

# 
# ls
.profile

Is the FTOS image loading correctly?  Thanks in advance.