Eucalyptus Ssh Can Not Login Solution

I used

euca-describle-keypairs

to see the password first. If there is no password "aa", then use the following command.

euca-add-keypair aa > my.private

else delete password "aa" first or use another password.

euca-delete-keypair aa

you should change my.private file access privilege, like:

chmod 0600 my.private

then use euca-run-instance to run:

euca-run-instance -k aa -n 1 $emi

then I have seen ip of instance. use ssh to login:

ssh -i my.private root@ip

done!

If you do not change my.private file access privilege, then it will report:

privilege 0644 is too open.

If you chmod after the report, ssh will not let you login. So change it before you want access your instance.