Upgrade Ubuntu e problema no Postgre

11:39 am Linux, Postgre, Ubuntu

Após atualizar o Ubuntu para a versão 8.04, o servidor do postgre não iniciava mais com o seguinte erro:

 * The PostgreSQL server failed to start. Please check the log output:
BRT LOG:  could not load root certificate file "root.crt": no SSL error reported
BRT DETAIL:  Will not verify client certificates.
BRT FATAL:  could not create shared memory segment: Invalid argument
BRT DETAIL:  Failed system call was shmget(key=5432001, size=34504704, 03600).
BRT HINT:  This error usually means that PostgreSQL's request for a shared memory
segment exceeded your kernel's SHMMAX parameter.  You can either reduce the
request size or reconfigure the kernel with larger SHMMAX.  To reduce the request
size (currently 34504704 bytes), reduce PostgreSQL's shared_buffers parameter
(currently 3456) and/or its max_connections parameter (currently 103).
	If the request size is already small, it's possible that it is less than your
kernel's SHMMIN parameter, in which case raising the request size or reconfiguring
SHMMIN is called for.
	The PostgreSQL documentation contains more information about shared
memory configuration.

Foi necessário alterar o arquivo “/etc/postgresql/8.3/main/postgresql.conf”, trocando o valor da variável “shared_buffers” de “32MB” para “26MB”.

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