role ONISTALL is not created yet

Dear Experts,

    I am trying to install SAP ECC 6.0 EhP7 in Linux. I am getting the following error,

Assertion failed: in function (role, readAccountData) { if (readAccountData === undefined) { readAccountData = true; } NWUsers.trace("NWUsers.getAccountData(", role, ")"); this._initAccountData(); ASSERT(arguments.callee, this.haveAccountData(role), "role " + role + " is not created yet."); var ad = this._readAccountDataFromKeydb(role); if (readAccountData) { ad = this._readAccountData(ad); } var masterpwd = this.getMasterPassword(); if (ad.password == "" && this._useMasterPasswordForAccountData(ad) && ad.type == "USER" && masterpwd !== undefined && role != NWUsers.roles.J2EEGuest && !ad.locked) { ad.password = masterpwd; } NWUsers.trace("NWUsers.getAccountData(): ", dump_properties(ad)); return ad; } : role OINSTALL is not created yet.

I have gone through forums, i tried to create ONISTALL manually. But still it doesn't work.

Any clue?