--- rollout.xml.o 2014-05-22 17:00:49.727585853 +0200 +++ rollout.xml 2014-05-22 17:21:04.875533744 +0200 @@ -7,7 +7,7 @@ - When the image is installed, the image installation tool then checks whether there is already a + When the image is installed, the image installation tool checks whether there is already a computer account available for the client and uses it. If the computer name is not stored in advance, the name can be specified interactively during the installation. @@ -17,7 +17,7 @@ The image with which a UCC client is operated is configured in the &ucsUMC; in the Images tab on UCC computer - objects. All the UCC images registered in the UCS management + objects. All UCC images registered in the UCS management system are available for selection. The registration is effected with join scripts during the installation of the image, see . @@ -33,16 +33,16 @@ - UCC clients can be operated in three different installation modes, - which can be assigned via the Boot variant field: + UCC clients can be operated in five different modes, + which can be assigned via the Boot variant field. + The client must be configured for PXE boot in the BIOS. Live boot Here the image is - started via PXE and mounted via NFS. The client must be configured - for PXE boot in the BIOS. Technically, all UCC systems are always + started via PXE and mounted via NFS. Technically, all UCC systems are always treated as having read/write storage media: If an image is mounted from a source which itself only allows readonly access (from a live DVD or as - in this case from a NFS share), an OverlayFS file system is employed: + in this case from an NFS share), an OverlayFS file system is employed: All the write changes are cached in the system memory and are lost when the computer is switched off. Thin clients are also always run with an overlayfs for a local installation, further information can be found under @@ -53,7 +53,7 @@ Installation with repartitioning and image rollout: This mode is used for the initial installation of a UCC client. It is also required whenever a UCC client should - be installed completely or switched to a different partition scheme. The partitions of the + be reinstalled completely or switched to a different partition scheme. The partitions of the system are setup as configured in the image configuration. A prompt must be confirmed before the partitioning begins (it can be disabled using the boot option force_partition, see below). After the installation of the image, the @@ -71,15 +71,15 @@ Image boot with update check is used to update an existing UCC installation to a new version. It is detected whether the installed image differs - from the image to be installed. If that is the case, the UCC system partition is - overwritten. In contrast to the partition option above, no new partitioning occurs. + from the image to be installed. If that is the case, the UCC image on the system is replaced. + In contrast to the partition option above, no new partitioning occurs. Image boot without update check: In this boot mode, the locally installed - image is started and no check for a newly available image performed. Following an + image is started and no check for a newly available image performed. Following a successful installation performed with Image boot with update check or Installation with repartitioning and image rollout, the system returns to this boot mode automatically.