Making a bootable flash or USB disk from the ttylinux CD-ROM makes a ttylinux system different from an installed system; when the flash disk is booted, the root file system from the flash disk is decompressed and becomes a read/write root file system in a RAM disk in memory. Changes to files are lost when the system shuts down.
A Linux system, either ttylinux or some other Linux system, can by used to make a ttylinux bootable flash disk. The ttylinux CD-ROM or the CD-ROM image file or even the kernel and file system image files removed from the CD-ROM and in a directory somewhere can be used as the source, depending upon which Linux system is to be used.
The complete process is described in a text file, Flash_Disk_Howto.txt, in the ttylinux CD-ROM image; you can find it the root (top-level) directory of the CD-ROM.
Also in the root directory of the CD-ROM is a shell script that automates the process of transferring the ttylinux system from the CD-ROM onto a flash disk and making the flash disk bootable. The Flash_Disk_Howto.txt file has a short description of using this shell script. This shell script depends upon both the CD-ROM and flash disk being mounted; the CD-ROM should be mounted with option -t iso9660 to specify the correct file system type, and USB disks are usually FAT32 and those should be mounted with option -t vfat to specify the correct file system type.