BIG-IQ : Error when adding device

curl --verbose -sku "admin:<redacted>" https://bigip2/mgmt/shared/identified-devices/config/device-info  | jq -r
 
> GET /mgmt/shared/identified-devices/config/device-info HTTP/1.1
> Authorization: Basic YWRtaW46XmlhTCpSXlBCaC54ajgzOHVLLzhA
> User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 OpenSSL/1.0.1l zlib/1.2.3 libidn/1.18
> Host: <redacted>
> Accept: */*
> 
< HTTP/1.1 400 Bad Request
< Date: Wed, 05 May 2021 15:02:27 GMT
< Server: Jetty(9.2.22.v20170606)
< Set-Cookie: BIGIPAuthCookie=SN8F4Fr0VS8JJ4KZDAobOZ4BkXkfRKADH22x2Hpa; path=/; Secure; HttpOnly
< Set-Cookie: BIGIPAuthUsernameCookie=admin; path=/; Secure; HttpOnly
< X-Frame-Options: SAMEORIGIN
< Strict-Transport-Security: max-age=16070400; includeSubDomains
< Content-Type: application/json; charset=UTF-8
< Pragma: no-cache
< Cache-Control: no-store
< Cache-Control: no-cache
< Cache-Control: must-revalidate
< Expires: -1
< Content-Length: 0
< X-Content-Type-Options: nosniff
< X-XSS-Protection: 1; mode=block
< Content-Security-Policy: default-src 'self'  'unsafe-inline' 'unsafe-eval' data: blob:; img-src 'self' data:  http://127.4.1.1 http://127.4.2.1
< Connection: close
< 
* Closing connection #0
* SSLv3, TLS alert, Client hello (1):
} [data not shown]

The issue was related to RPM processes being stuck on the guest. I ran the above curl command (per F5 support) from both BIG-IQ and the guest itself and the results were the same. Running a filesystems check and rebooting the guest fixed the issue. Thanks Lucy.