/usr/local/bin/cpdup -vvv -o /usr/bin/mnt/usr/bin
Execution of the command/usr/local/bin/cpdup -vvv -o /usr/bin/mnt/usr/binFAILED with a return code of 1.
BSD Installed stardedDFUI connection on tcp:9999 successfully established,- opened pty to '/sbin/sysctl -n hw.physmem'[Mon Feb 15 06:24:08 2021]<8401756160` - closed pty to '/sbin/sysctl -n hw.physmem'`/sbin/sysctl -n hw.physmem` returned: 8401756160, - opened pty to '/sbin/sysctl -n kern.disks'<da0 ada0 cd0` - closed pty to '/sbin/sysctl -n kern.disks''/sbin/sysctl -n kern.disks` returned: da0 ada0 cd0Testing da0Invoking survey for da0Surveying Disk: da0 ..., - opened pty to '/sbin/fdisk da0'< ******* Working on device /dev/da0 *******< parameters extracted from in-core disklabel are:< cylinders=243 heads=255 sectors/track=63 (16065 blks/cyl)<< parameters to be used for BIOS calculations are:< cylinders=243 heads=255 sectors/track=63 (16065 blks/cyl)<< Media sector size is 512< Warning: BIOS sector numbering starts with sector 1< Information from DOS bootblock is:< The data for partition 1 is:< sysid 238 (0xee), (EFI GPT)............` ->>> Exit status: 0, -<<< Executing `/usr/local/bin/cpdup -vvv -o /home /mnt/home'` ->>> Exit status: 0, -<<< Executing `/usr/local/bin/cpdup -vvv -o /lib /mnt/lib'` ->>> Exit status: 0, -<<< Executing `/usr/local/bin/cpdup -vvv -o /libexce /mnt/libexec'` ->>> Exit status: 0, -<<< Executing `/usr/local/bin/cpdup -vvv -o /media /mnt/media'` ->>> Exit status: 0, -<<< Executing `/usr/local/bin/cpdup -vvv -o /proc /mnt/proc'` ->>> Exit status: 0, -<<< Executing `/usr/local/bin/cpdup -vvv -o /rescue /mnt/rescue'` ->>> Exit status: 0, -<<< Executing `/usr/local/bin/cpdup -vvv -o /root /mnt/root'` ->>> Exit status: 0, -<<< Executing `/usr/local/bin/cpdup -vvv -o /sbin /mnt/sbin'[Mon Feb 15 06:25:16 2021]` ->>> Exit status: 0, -<<< Executing `/usr/local/bin/cpdup -vvv -o /sys /mnt/sys'` ->>> Exit status: 0, -<<< Executing `/bin/mkdir -p /mnt/usr/'` ->>> Exit status: 0, -<<< Executing `/usr/local/bin/cpdup -vvv -o /usr/bin /mnt/usr/bin'[Mon Feb 15 08:31:55 2021]` ->>> Exit status: 1
The system used for install is nearly 15 years old at this point. Most of those early Core2 systems were right at the cusp of UEFI support, they can have issues with GPT partitions especially when using an older BIOS.
I'd make sure the BIOS is the latest version available, and also run a memtest just to rule out any hardware weirdness. Try enabling UEFI in the BIOS (if it's available) and try to use GPT partitions. If that won't work, turn off UEFI and choose MBR, one of them should get you up and running on old hardware like that.
The install log you posted seems to indicate it's attempting a GPT EFI partition.
Maybe also try to re-write the OPNsense image to a different USB stick, just to rule out a USB stick issue, and try to use it in a different USB port?
Just throwing out some other possible ideas that may help.
I'm also a migrant from pfSense and every system I have used pfSense on easily runs OPNsense and the install process has been identical. I've had some small issues when installing on a VM but on bare metal hardware, it was always the same steps for installation.
One other thing that may be worth trying, did you download the ISO installer or the VGA .img installer? The wording on the OPNsense website seems to indicate the ISO may have better support for non-UEFI MBR systems like this one (they specifically state the vga installer boots as GPT). If you haven't tried the ISO, I would download that and you can use dd to write it to the same USB stick, then boot it from there and see if the install works better?
I have read reports about USB3 vs USB2 and creation of usb installers, but with USB3 ports being more ubiquitous compared to USB2 on newer desktops/laptops (i have 4 USB3 ports compared to 2 USB2 ports on this desktop from 2016), I guess it slipped my mind. Not really sure why the installers behave so differently based on the ports they were created on... but that's life