Installation of flash memory Umigumi is used to install an installer on CF card or USB flash disk. OpenBrick is started with CF or USB installer as well as raw CF or USB memory. Customer order number information is provided by staff. Installer downloads configuration information and produces custimized CF or USB memory. Configuration Configuration is provided as config.tgz file and downloaded from Nexedi's ERP5 through VPN access. Update Customer receives updated flash memory by mail. Nexedi updates flash memory remotely. Nexedi DLS Role of Umibuilder Spec definition of Nexedi DLS. Allows to produce LiveCD and autoinstall.pl file. Role of Umigumi Install autoinstaller on CF card. Custom installation Boot CF card, install RPMs (stored on shared local proxy). Final RPM includes config.tgz file. config.tgz is used to overwrite standard setup (?) either at install time or at boot time (to be determined). Custom install generated by ERP5. Update New machine sent (central node) Umigumi Role: help users to install default setup on OpenBrick and chose IP address. Config done TTW. No need of cache (or cache can be put on LiveCD). Feature needed in umibuilder: publish.