Install in go

[majst01]

Remove last standing bashism. Add cloud-init support to centos.

depends on:

• Install in go metal-hammer#95

TODO:

• test with ubuntu incl. reboot
• test with firewall-ubuntu incl. reboot
• test with debian incl. reboot
• test with centos
  • install with kexec boot
  • reboot, does not work, falls into grub cli
• test with real HW including raid filesystemlayout
  • works with debian and ubuntu
  • centos gives this error:
    2022-10-11T08:55:49.462+0200 info cmdexec running command {"commmand": "dracut --mdadm --kver 3.10.0-1160.76.1.el7.x86_64 --kmoddir /lib/modules/3.10.0-1160.76.1.el7.x86_64 --include /lib/modules/3.10.0-1160.76.1.el7.x86_64 /lib/mod$ les/3.10.0-1160.76.1.el7.x86_64 --fstab --add=\"dm mdraid\" --add-drivers=\"raid0 raid1\" --hostonly --force", "start": "2022-10-11 08:55:49.4623478 +0200 CEST m=+2.415875451"} No '/dev/log' or 'logger' included for syslog logging findmnt: can't read (null): No such file or directory findmnt: can't read (null): No such file or directory cp: cannot stat '/proc/modules': No such file or directory dracut module '"dm' cannot be fo[ 107.980388] dracut[1365] dracut module '"dm' cannot be found or installed. und or installed. 2022-10-11T08:55:51.054+0200 error cmdexec executed command with error {"output": "", "duration": "1.592120013s", "error": "exit status 1"}

Closes #123.

[majst01]

@mschuller i need your assistance to test that the raid setup is still working.