OK, well, as an update, It looks like I was banging my head against a bad repo for the php stuff
I walked through the logs of a successful install (by a colleague) and compared them.

All is good now.

Thanks

As I stated, I have seen it on both uefi AND BIOS (legacy) machines, but not ALL of either type.
It seemed more prevalent with Realtek chipsets, but also seen on Intel and nVidia.

I found another post in here that listed something similar for the extra chars
https://forums.fogproject.org/topic/9787/pxe-t01-file-not-found-error

working through some of the troubleshooting/ I decided to look at the dhcpd.conf a little closer
This is what I had - “broken”

if option arch = 00:06 {
    option bootfile-name "i386-efi/ipxe.efi";
} else if option arch = 00:07 {
    option bootfile-name "ipxe.efi";
} else {
    option bootfile-name "undionly.kpxe";
}

I changed it to this

if option arch = 00:06 {
    filename "i386-efi/ipxe.efi";
} else if option arch = 00:07 {
    filename "ipxe.efi";
} else {
    filename "undionly.kpxe";
}

And the errors seem to have gone away

so it seems to be VERY important as to which key word is in your dhcpd.conf

I have a number of machines that when I attempt to boot them via iPXE i get a weird error.

I am seeing the error by doing a tcpdump on ports 67/68/69

it is basically the following

13:39:59.552719 IP <MACHINE IP>.<ephemeral port> > <TFTP SERVER IP>.tftp:  39 RRQ "ipxe.efiM-^?" octet tsize 0 blksize 1468

I have seen a few other strings show up, but always similar to this.
One machine was “fixed” by flashing the BIOS/Firmware to latest, but others no.
I have also seen this on undionly.kpxe requests.

Any help would be great.

Thanks

OK, well, as an update, It looks like I was banging my head against a bad repo for the php stuff
I walked through the logs of a successful install (by a colleague) and compared them.

All is good now.

Thanks

[root@foghost ~]# getenforce
Permissive
[root@foghost ~]# systemctl status firewalld
Unit firewalld.service could not be found.
[root@foghost ~]# systemctl status iptables
Unit iptables.service could not be found.
[root@foghost ~]# systemctl status ufw
Unit ufw.service could not be found.

I have been attempting to install a new instance of FOG onto a fresh install of CentOS 7.
All seems to be going well right up until I get to the following prompt:

 * You still need to install/update your database schema.
 * This can be done by opening a web browser and going to:

   http://<HOST_IP>/fog/management

 * Press [Enter] key when database is updated/installed.

I have seen this problem mentioned before in these forums and I have attempted pretty much ALL of the fixes mentioned.

1. MariaDB service is up and running. I have tried both with blank password and entering a password for root. No difference.
2. HTTPD error logs show NO problems

[root@foghost ~]#  tail -100 /var/log/httpd/error_log
[Mon Aug 12 18:09:30.227899 2019] [core:notice] [pid 3008] SELinux policy enabled; httpd running as context system_u:system_r:httpd_t:s0
[Mon Aug 12 18:09:30.229082 2019] [suexec:notice] [pid 3008] AH01232: suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Mon Aug 12 18:09:30.255955 2019] [lbmethod_heartbeat:notice] [pid 3008] AH02282: No slotmem from mod_heartmonitor
[Mon Aug 12 18:09:30.272326 2019] [mpm_prefork:notice] [pid 3008] AH00163: Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/5.4.16 configured -- resuming normal operations
[Mon Aug 12 18:09:30.272356 2019] [core:notice] [pid 3008] AH00094: Command line: '/usr/sbin/httpd -D FOREGROUND'

3. HTTPD Access logs shows a single line with a server error 500

<MY WKSTN IP> - - [12/Aug/2019:18:09:50 -0400] "GET /fog/management/ HTTP/1.1" 500 - "-" "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0"

If I “refresh” the page, I get a WHOLE bunch of those same entries.
4. mysql from the command line shows that fog database has not been created, but create/drop of a fog2 db performed as expected. (i.e. it worked to create and delete)

Any help would be appreciated.

Thanks, Dave