UNIX - How to read error messages in /var/adm/messages when system is not booting?

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How to read error messages in /var/adm/messages when system is not booting?

Total Answers and Comments: 4

Last Update: August 23, 2008 Asked by: chaitu567

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July 07, 2006 07:38:28

Raghu

RE: How to read error messages in /var/adm/messages wh...

When the host is not able to boot , you basically cannot connect to the console. So you can view the messages or any other files.

The only alternate is that you can boot ur system with old unix vmunix.old file and see the messages.

Let me know if you need more clarification n this.

Rgds,
Raghu

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July 07, 2006 12:31:24

Chaitu

RE: How to read error messages in /var/adm/messages wh...

Hi Raghu, Please let me know where i can find vmunix.old file, i have another option: Boot system in Diagnostic mode and connect serial port A to console with null modem cable, then we can able to see the error messages on the console which is connected with serial port-A.

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September 10, 2006 22:24:40

PENGUINCODER

Member Since: September 2006 Contribution: 1

RE: How to read error messages in /var/adm/messages wh...

type in "dmesg" to read what you missed during the boot process.

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August 22, 2008 23:17:58

Rambo188

Member Since: August 2008 Contribution: 1

RE: How to read error messages in /var/adm/messages when system is not booting?

If OS can't boot into multi-user level, I can try to boot the OS into single-user level.
If I can't boot into single-user level, I wouldn't read the messages in /var/adm/messages.

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