TKLDev can't build core

As mentioned in this post, I think my problem is using OVZ. I will reinstall with KVM.

EDIT: Yup, don't use OVZ

I still get an error as described here. I tried the solutions listed in that thread, but I still can't get it to work.

could not find Kernel Image:  gfxboot

What do I do now?

As for your ISO not bootable issue that's new to me... I have been building many (many, many) ISO during the development of v14.0 and have never come across that issue... Landis (Arnold - from that thread) appears to have not had that issue since although he doesn't clearly state what resolved it, so perhaps just make sure you are using the default TurnKey git branches (master) and update everything (tkldev-setup) and try rebuilding from scratch (i.e. make clean && make).

Otherwise are there perhaps any specific changes you are making?

I guess if you can share what you are actually doing/trying to achieve perhaps I can help?

I ran the tkldev-setup that I created, cleaned make, restarted and got more errors.

E: Unable to locate package isolinux
Traceback (most recent call last):
  File "/usr/lib/fab/wrapper.py", line 34, in <module>
    CliWrapper.main()
  File "/usr/lib/python2.7/dist-packages/pyproject.py", line 388, in main
    commands.run(name, args)
  File "/usr/lib/python2.7/dist-packages/pyproject.py", line 261, in run
    command.module.main()
  File "/usr/lib/fab/pylib/cmd_install.py", line 129, in main
    installer.install(packages, ignore_errors)
  File "/usr/lib/fab/pylib/installer.py", line 267, in install
    self._install(packages, ignore_errors)
  File "/usr/lib/fab/pylib/installer.py", line 137, in _install
    self.chroot.system("apt-get", *(args + packages))
  File "/usr/lib/python2.7/dist-packages/chroot.py", line 80, in system
    executil.system(*self._prepare_command(*command))
  File "/usr/lib/python2.7/dist-packages/executil.py", line 56, in system
    raise ExecError(command, exitcode)
executil.ExecError: non-zero exitcode (100) for command: chroot '/turnkey/fab/products/core/build/root.build'  'sh'  '-c'  "env -i  'TERM=xterm'  'AMD64=y'  'DEBIAN_FRONTEND=noninteractive'  'HOSTNAME=core'  'WEBMIN_FW_TCP_INCOMING=22 12320 12321'  'FAB_ARCH=amd64'  'DEBIAN=y'  'FAB_HTTP_PROXY=http://127.0.0.1:8124'  'DEBIAN_PRIORITY=critical'  'HOME=/root'  'RELEASE=debian/wheezy'  'PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/bin:/usr/sbin'  'CODENAME=wheezy'  'LC_ALL=C'  'DISTRO=debian' apt-get 'install'  '--force-yes'  '--assume-yes'  'libgcc1'  'lsb-base'  'kbd'  'iproute'  'libreadline6'  'findutils'  'rsyslog'  'sensible-utils'  'libusb-0.1-4'  'systemd'  'libncursesw5'  'whiptail'  'less'  'sysv-rc'  'shellinabox'  'libapt-pkg4.12'  'iptables'  'libpam-modules'  'liblzma5'  'gcc-4.7-base'  'cpio'  'bash-completion'  'libacl1'  'debian-archive-keyring'  'ssh'  'libncurses5'  'readline-common'  'util-linux'  'acpi-support-base'  'libpam0g'  'bind9-host'  'webmin-updown'  'stunnel4'  'sysvinit-utils'  'webmin'  'psmisc'  'libslang2'  'e2fslibs'  'tklbam'  'net-tools'  'hubdns'  'udhcpc'  'debconf'  'libpam-modules-bin'  'casper'  'syslinux-common'  'webmin-passwd'  'libudev0'  'udev'  'cron'  'sed'  'mktemp'  'kmod'  'rsync'  'localepurge'  'nano'  'inithooks'  'libselinux1'  'ncurses-bin'  'webmin-net'  'libpam-runtime'  'libss2'  'ntp'  'screen'  'libmount1'  'libattr1'  'webmin-useradmin'  'wget'  'libbz2-1.0'  'bash'  'webmin-custom'  'mawk'  'sysvinit'  'di-live'  'webmin-software'  'python-dialog'  'webmin-file'  'login'  'libklibc'  'etckeeper'  'lvm2'  'gpgv'  'apt'  'lsb-release'  'libc-bin'  'syslinux'  'ifupdown'  'webmin-sshd'  'cron-apt'  'tzdata'  'webmin-syslog'  'netbase'  'turnkey-sysinfo'  'git-core'  'libustr-1.0-1'  'libsepol1'  'traceroute'  'turnkey-version'  'libsemanage1'  'bsd-mailx'  'webmin-theme-stressfree'  'libcomerr2'  'hdparm'  'debianutils'  'bsdutils'  'webmin-tklbam'  'ncurses-base'  'confconsole'  'iputils-ping'  'dash'  'grep'  'mount'  'initscripts'  'resolvconf'  'gnupg'  'libdb5.1'  'procps'  'ethtool'  'turnkey-pylib'  'tar'  'man-db'  'libsemanage-common'  'libprocps0'  'logrotate'  'unzip'  'file'  'base-files'  'curl'  'initramfs-tools'  'dpkg'  'libtinfo5'  'hostname'  'coreutils'  'libstdc++6'  'libkmod2'  'webmin-shell'  'insserv'  'passwd'  'webmin-text-editor'  'webmin-postfix'  'multiarch-support'  'gzip'  'zlib1g'  'libc6'  'webmin-firewall'  'klibc-utils'  'eject'  'postfix'  'diffutils'  'ncurses-term'  'isolinux'  'e2fsprogs'  'base-passwd'  'monit'  'perl-base'  'locales'  'vim-tiny'  'webmin-lvm'  'libblkid1'  'libuuid1'"
make: *** [build/stamps/root.build] Error 1

That guide did work. It should be noted that I was using the v13 tkldev from the list of apps, not the v14rc1 on that page. Thanks a bunch Jeremy!

FWIW this blog post might be worth a read. It probably covers stuff you have already done but perhaps the step-by-step might help you out?

I don't have a tkldev-setup. I assume we're talking about this? I looked in that directory and the folder was empty. I created it manually however.