Linux Install - ulimit, dbconsole

Question

Hello- brand new install of 11g Standard Edition on Ubuntu Linux...
I read a helpful startup script and entered most all of the configs by hand before install.. reading the logs I can see that oracle starts up and has been configured.. though the configure app did end up complaining and did not finish completely (java and oracle proceeded to keep the dual CPU box at load 5 for the next 9 hours while I slept !!)
so now I go to start the DB and a console.. two problems:
* ulimit - whether in .bashrc, or in /etc/security/limits.conf.. I cannot get these ulimits right.. I currently have, user 'oracle'
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536
dbstart runs without error, but
when I run emctl start dbconsole , I get the msg -- ulimit: 25: Bad Number
followed by
OC4J Configuration issue. /u01/app/oracle/product/11.1.0/db_1/oc4j/j2ee/OC4J_DBConsole_hps-desktop_lin11 not found
well, I am not used to the terms yet.. my ORACLE_SID = lin11
but I know I have a database called orcl
so looking in the directory, I see
OC4J_DBConsole_hps-desktop_orcl
hmm.. dont know what to make of that mixup
clarifications for Up and Running Install welcome
thanks

Answer 1

I'm also using Ubuntu and get the same error message when running emctl:
ulimit: 25: bad number
I traced the problem to the file $ORACLE_HOME/bin/commonenv which is sourced by emctl.
The offending line is line 23: ulimit -S -c hard
If you type this line into bash, it works just fine, but emctl begins with the line #!/bin/sh, which on Ubuntu systems is symbolically linked to /bin/dash. Now, ulimit is a built-in shell command, not an executable file, and bash and dash seem to have a different syntax. If you type "dash" at a shell prompt to start a new dash shell, and type that particular ulimit command, it will complain about a bad number. (I'm not sure what the "25" represents, that number seems to be related to the number of lines in the shell script in which the command is found.) Be sure to type "exit" when finishing this test to return to bash or whatever your preferred shell is.
Two things to note: this ulimit command is related to core file sizes and its failure shouldn't cause any problems, so you can probably safely ignore the error messages. Secondly, Ubuntu is not an officially supported OS for Oracle, so this problem may not exist with Suse or RHEL, I don't know. I am running Oracle on Ubuntu, and it seems to work fine, although installation was a bit of a headache.