338 Dell PowerConnect 55xx Systems User GuideFILE LOCATION: C:\Users\gina\Desktop\Checkout_new\Maintenance Projects\DellContax\sources\CxUGSystemConfig.fmD E L L C O N F I D E N T I A L – P R E L I M I N A R Y 1 0 / 3 0 / 1 3 - F O R P R O O F O N LYdevice. This can be done manually in the Copy Files page or see "Auto-Update/Configuration Feature" on page 338 for more information abouthow to perform this automatically.• Image Files—Files with extension .ros. System file images are saved in twoflash files called Image 1 and Image 2. The active image contains theactive copy, while the other image contains a backup copy. The deviceboots and runs from the active image. If the active image is corrupted, thesystem automatically boots from the non-active image. This is a safetyfeature for faults occurring during the software upgrade process.Downloading/Uploading System FilesSystem files can be manually loaded from (downloaded) or copied to(uploaded) a TFTP server or a USB drive. This can be done in one of thefollowing ways:• Manually—System files can be downloaded using theFile Download pageand uploaded using theFile Upload page.• Automatically (Auto Update/Configuration)—System files can bedownloaded automatically, as follows:– Auto-Configuration—If the Auto-Configure feature is enabled (in theAuto Update of Configuration/Image File page), the StartupConfiguration file (in various conditions described below) might beautomatically updated after reboot.– Auto-Update—If the Firmware Auto-Update feature is enabled in theAuto Update of Configuration/Image File page, the image file is mightbe automatically updated (in various conditions described below).Auto-Update/Configuration FeatureThe Auto-Update/Configuration feature enables initial configuration of thedevice and upgrading of the firmware through an automatic process, whichenables the administrator to ensure that the configuration/firmware of all thedevices in the network is up-to-date.