After upgrading Deployment solutions you find that the default PEInstall for automation folders is missing from the PXE configuration. So your unable to rebuild it or even install it. Not sure why this happens, but can be easily fixed.
To fix the issue please run these cmds in order to finish the upgrade process:
bootwiz.exe -q -install
bootwiz.exe -install -oem "DS" -save
bootwiz.exe -q -pkg -pkgos linprod -pkgcpu x86 -os linux -oem "DS" -x86 "G:\Program Files\Altiris\Notification Server\Nscap\Bin\UNIX\Deployment\Linux\x86\Automation\LinInstall_x86\lininstall_x86.sh" -delete -taskinstall dir -task auto
bootwiz.exe -q -pkg -pkgos linprod -x86 "G:\Program Files\Altiris\Notification Server\Nscap\Bin\UNIX\Deployment\Linux\x86\Automation\LinInstall_x86\LINUninstall_x86.sh" -taskinstall diruninstall
bootwiz.exe -q -pkg -pkgos windows -pkgcpu x86 -os WinPE10 -oem "DS" -x86 "G:\Program Files\Altiris\Notification Server\Nscap\Bin\win32\x86\Deployment\Automation\PEinstall_x86\PEInstall_x86.exe" -delete -taskinstall dir -task auto
bootwiz.exe -q -pkg -pkgos windows_WinPE10 -x86 "G:\Program Files\Altiris\Notification Server\Nscap\Bin\win32\x86\Deployment\Automation\PEinstall_x86\PEUninstall_x86.exe" -taskinstall diruninstall
bootwiz.exe -q -pkg -pkgos windows -pkgcpu x64 -os WinPE10 -oem "DS" -x64 "G:\Program Files\Altiris\Notification Server\Nscap\Bin\win64\x64\Deployment\Automation\PEInstall_x64\PEInstall_x64.exe" -delete -taskinstall dir -task auto
bootwiz.exe -q -pkg -pkgos windows_WinPE10 -x64 "G:\Program Files\Altiris\Notification Server\Nscap\Bin\win64\x64\Deployment\Automation\PEInstall_x64\PEUninstall_x64.exe" -taskinstall diruninstall