3.664 bytes |
Service Hints & Tips |
Document ID: MCGN-3VCQUB |
Netfinity 5500 - Boot Manager appears hung with null modem connection
Applicable to: World-Wide
SYMPTOM:
The system appears* hung at the Boot Manager screen.
* The system appears hung due to the fact that Boot Manager does not automatically boot to the highlighted Operating System after the normal 30 sec period (for user selection intervention). The system can be booted to a highlighted Operating System in Boot Manager but requires user input (pressing <enter>).
PROBLEM ISOLATION AIDS:
All of the following must be true for this tip to apply:
- The system is a Netfinity 5500 server Type 8660 model 11U, 1RU, 41U, 4RU, 11X, 1RX, 41X, 4RX.
- The primary hard drive is configured with a partition containing OS/2 Warp 3.0 or 4.0 "Boot Manager".
- The Boot Manager Timer is enabled.
- Boot Manager is set to run "Attended Mode".
- The system's shared serial port is connected to a terminal running a ASCII session via a null modem connection.
FIX:
IBM is working to resolve this issue. At such time that a fix is available, it will be communicated.
WORKAROUND:
Select/highlight the Operating System of choice in Boot Manager (if not already highlighted), then press <enter> to engage booting that Operating System.
DETAILS:
When Boot Manager loads, it sends a ESC to the serial port releasing the port to allow the pending Operating System to take control of the port. The problem manifests itself by disabling the 30 second timer in Boot manager when the ESC is sent to the port while connected to a remote terminal running a ASCII session. With the Boot Manager timer disabled, the highlighted
Operating System does not start after 30 seconds. The user must press enter for the highlighted Operating System to start.
SAS KEYWORDS:
PSY2, UNCLASSIFIED, D/T8660, NETFINITY, 5500, SERVER, BOOT, MANAGER, TIMER, HANG, ASCII, SESSION, SERIAL, PORT, OS/2, WARP, 3.0, 4.0, ESC, SHARED, H163847
Search Keywords |
PSY2, UNCLASSIFIED, D/T8660, NETFINITY, 5500, SERVER, BOOT, MANAGER, TIMER, HANG, REMOTE CONNECT, SERIAL, PORT, OS/2, WARP, 3.0, 4.0, ESC, H163847 | |
Hint Category |
Retain | |
Date Created |
11-06-98 | |
Last Updated |
25-08-98 | |
Revision Date |
21-08-99 | |
Brand |
IBM PC Server | |
Product Family |
Netfinity 5500 | |
Machine Type |
8660 | |
Model |
11U; 11X; 41U; 41X; 1RU; 1RX; 4RU; 4RX; 42U; 42X; 51U; 51X; 52U; 52X; 5RU; 5RX; 4SU; 4SX; 5SU; 5SX | |
TypeModel |
| |
Retain Tip (if applicable) |
H163847 | |
Reverse Doclinks |
Date last altered: A98/06/10, Owning B.U.: USA, USA=A, EMA=A, AFE=A |