Ideally need to create a flashrom.tcz file - maybe one day - otherwise:
Good way to get familiar with ezremaster.
On a running system use the App Browser to load ezremaster.tcz
Need the flashrom binary, TinyCore-current.iso, also maybe a BIOS image file if you're making a specific 'BIOS flashing' build. In this example I have one for the Wyse Cx0.
In this case I used a freshly created Tiny Core installation. In tc's home directory created the path bios/wyse/cx0_bios_1_0G.img and then ran filetool.sh -b to create the mydata.tgz file.
In what follows I'm running from a USB drive that appears as /dev/sdb1
run ezremaster
Select: use ISO image, Path to ISO: /mnt/sdb1/TinyCore-current.iso. Accept default of /tmp/ezremaster for working directory.
Set boot codes: kmap=qwerty/uk tce=UUID="xxxx-xxxx" and tgz: /mnt/sdb1/tce/mydata.tgz
Load the following 'outside initrd' on boot apps:
Select next - it runs and extracts the files from the iso
At the Remaster step #2 screen:
hit "create ISO"
wait
cp the iso /tmp/ezremaster.iso /mnt/sdb1/flashrom.iso
On Windows use LiLi to create new boot flash drive using the new iso
rename to FLASHROM
rename the cde directory to tce
Briefly transfer to another system and use blkid to get UUID (C834-9871 in this case)
edit syslinuux.cfg file to suit.
Hopefully that's it.