Thanks you also, by the way:
I have also test another way of doing what you doing, you can follow this article to make some images that you can burn to some usb thumb drives or to some ssd or to some spinning disks using qemu
https://fabianstumpf.de/articles/tinycore_images.htmDon't forget then burning the image to the usb thumb drive or to ssd or to disk, you have to expand the partition to correct size after you booting the system natively.
You need to do the following:
Thanks to @bmarkus at this forum for the original text:
1) Start fdisk partitioning tool as root:
sudo fdisk -u /dev/sda
Now list partitions with 'p' command and write down the starting and
ending sectors of partition.
2) Delete partition with 'd' than recreate it with 'n' command.
Use the same starting sector as deleted had and provide end
sector or size greater than deleted had having enough free space
for Mounted Mode. When finished, exit fdisk with 'w' command. Now
partition size increased but file system size is not yet changed.
3) Reboot. It is necessary to make Kernel aware of changes.
4) After reboot expand file system to the new partition boundaries with
typing the following command as root:
sudo resize2fs /dev/sda1
Now you are ready to use the bigger partition.