Which three logs can be reviewed to troubleshoot a vCenter Server upgrade failure? (Choose three.)

The vminst.log file provides comprehensive information about the main vCenter Server installer process, including its overall progress and any errors encountered during the upgrade.

The vim-vcs-msi.log specifically records details concerning Microsoft Installer (MSI) package operations, offering insights into component-specific installation issues or failures during the vCenter upgrade.

The pkgmgr.log file details the activities of the package manager, including the installation, uninstallation, and upgrade of various vCenter Server packages, which is critical for diagnosing package-related failures.

vc-upgrade.log is not a standard, primary log for troubleshooting vCenter Server upgrade failures, unlike the installer, MSI, and package manager logs.

firstboot.log is primarily used for troubleshooting initial configuration issues after a fresh appliance deployment or installation, not typically for upgrade failures.