The starting point is
- a PC, laptop, or netbook
- a clean 2GB or 4GB USB stick to use as the target device.
- a Sugar LiveOS image to use as the "host" media.
It does not really matter what operating system you are using. To make your persistent Sugar on a Stick you will boot your computer with a Sugar LiveOS "host" media, which might be:
- A CD-ROM made from the Sugar.iso available from Sugar on a Stick/Downloads
- The CD-ROM could be made from the default CD writing software of your PC.
- A UNetbootin USB as described in Sugar on a Stick/Installation Process
- A USB stick written with the Linux command
ddfrom the Sugar.iso available from Sugar on a Stick/Downloads,
sudo dd if=Fedora-Live-SoaSversion.iso of=/dev/sdX bs=8M
- A USB stick written with Nautilus (Files).
- or any other Sugar on a Stick.
Method
Boot your computer with the chosen LiveOS media. Once Sugar is running,
Either enter a console with Ctrl+Alt+F2,
or open the Terminal Activity, 
, from the Home list View.
Plug a clean 2GB memory stick, the target device, into the PC.
Run the command,
df -Th
to establish the device location.
First, running the command `df -Th` before plugging in the target stick, expect output like this: [root@localhost ~]# df -Th Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/live-rw ext4 2.9G 2.1G 773M 74% / devtmpfs devtmpfs 2.0G 0 2.0G 0% /dev tmpfs tmpfs 2.0G 72K 2.0G 1% /dev/shm tmpfs tmpfs 2.0G 632K 2.0G 1% /run tmpfs tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup /dev/sr0 iso9660 670M 670M 0 100% /run/initramfs/live tmpfs tmpfs 2.0G 32K 2.0G 1% /tmp varcacheyum tmpfs 2.0G 0 2.0G 0% /var/cache/yum vartmp tmpfs 2.0G 0 2.0G 0% /var/tmp Then, running the command `df -Th` after the target stick is inserted, the command produces an extra line at the bottom: [root@localhost ~]# df -Th Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/live-rw ext4 2.9G 2.1G 773M 74% / devtmpfs devtmpfs 2.0G 0 2.0G 0% /dev tmpfs tmpfs 2.0G 72K 2.0G 1% /dev/shm tmpfs tmpfs 2.0G 632K 2.0G 1% /run tmpfs tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup /dev/sr0 iso9660 670M 670M 0 100% /run/initramfs/live tmpfs tmpfs 2.0G 32K 2.0G 1% /tmp varcacheyum tmpfs 2.0G 0 2.0G 0% /var/cache/yum vartmp tmpfs 2.0G 0 2.0G 0% /var/tmp /dev/sdb1 vfat 1.8G 2.0K 1.8G 1% /run/media/liveuser/SanDisk The new line reads: /dev/sdb1 vfat 1.8G 2.0K 1.8G 1% /run/media/liveuser/SanDisk and the first element reports that the target device is represented as /dev/sdb1. Write down your target in the format, /dev/sd?1, where ? is likely to be b, c, d or e.
Unmount the target USB stick - edit to reflect your target:
umount /dev/sd?1
For a nominal 2GB stick, enter this command - edit to reflect your target:
su -c "livecd-iso-to-disk --reset-mbr --overlay-size-mb 500 --home-size-mb 800 --unencrypted-home /run/initramfs/livedev /dev/sd?1"
Writing the stick will take some time, and when successful will finish by reporting
"Target device is now set up with a Live image!"
Your persistent Sugar on a Stick is ready to run.
Shut down your "host" Sugar LiveOS media system and boot the new.
For a nominal 4GB stick use this command,
su -c "livecd-iso-to-disk --reset-mbr --overlay-size-mb 1000 --home-size-mb 1600 --unencrypted-home /run/initramfs/livedev /dev/sd?1"
Maintenance
The persistent overlay status may be queried by issuing this command on the live system:
dmsetup status live-rw
The returned value may look like this:
live-rw: 0 8388608 snapshot 42296/204800 176
where the fraction after 'snapshot' for the logical volume is that of 512-byte sectors consumed in the overlay.