求助：难装的ArcSDE 在linux redhat db2

[xqy]

[root@localhost bin]# ./sdesetup -o update_key -d DB2 -l /home/sde/sde.ecp -u sde -p asdfdd

ESRI ArcSDE Server Setup Utility Wed Nov 10 12:57:54 2010
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Unable to get SDEHOME environment variable.Error: No SDEHOME environment variable set (-95).
Error: Error upgrading authorization key.
[root@localhost bin]# ./sdesetup -o install -d db2
Enter DBA password:

ESRI ArcSDE Server Setup Utility Wed Nov 10 12:59:13 2010
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Install or update ArcSDE, GDB schema objects:
Are you sure? (Y/N): y
Creating ArcSde schema.....
SDEHOME location/env variable not specified.
Error: No SDEHOME environment variable set (-95).
Error: SDE release install not completed.
Check SDEHOME\etc\sde_setup.log for more details.
[root@localhost bin]#