Mac admins spend a lot of time building images. In System Image Utility this can mean baking an image that just looks for a path of a NetRestore source and restores an operating system. Constantly making these is a pretty duplicative task. The goal of this article is to take a generic NetRestore NetBoot image and augment it in such a way that you don’t need to create new NetBoot images unless there’s a new build train. Instead, all you need to do is edit a file that changes the path (uri) of your image so that it can be restored. Using this, you can just stop the NetInstall service in…
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Setup NetInstall On OS X Yosemite Running the Server app
The NetBoot service allows administrators of OS X computers to leverage images hosted on a server to boot computers to a central location and put a new image on them, upgrade them and perform automations based on upgrades and images. Since the very first versions of OS X, the service has been called NetBoot. In the Server app, Apple provides a number of options surrounding the NetInstall service, based on Automator-style actions, now calling the service NetInstall. The first step to configuring the NetInstall service is to decide what you want the service to do. There are three options available in System Image Utility (available under the Tools menu of…
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Use NetInstall In Mavericks Server for System Imaging
The NetBoot service allows administrators of OS X computers to leverage images hosted on a server to boot computers to a central location and put a new image on them, upgrade them and perform automations based on upgrades and images. Since the very first versions of OS X, the service has been called NetBoot. In the Server app, Apple provides a number of options surrounding the NetInstall service, based on Automator-style actions, now calling the service NetInstall. The first step to configuring the NetInstall service is to decide what you want the service to do. There are three options available in System Image Utility (available under the Tools menu of…
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Installing and Managing NetBoot Services in OS X Mountain Lion Server
The NetBoot service has allowed administrators of Mac OS X computers to leverage images hosted on a server to boot computers to a central location since OS X was first introduced by Apple. Since the very first versions of OS X, the service has been called NetBoot. In the Server app, Apple has added a number of options surrounding the NetBoot service. It is now called NetInstall. The first step to configuring the NetBoot service is to decide what you want the NetBoot service to do. There are three options: Create a NetBoot Image: Allows Macs to boot over the network to a disk image hosted on a server. Create…
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Changes in Mountain Lion Server
Mountain Lion Server is now available on the OS X App Store and as with the last few updates there are some things missing that you might be expecting and depending on. First up, three major services are gone: Podcast Producer, RADIUS and dhcp. You can still do dhcp as you always did with OS X client as those features work on OS X Server, but the more granular controls available in OS X Server are now gone. The biggest impact of dhcp is probably in testing NetBoot services when there are network issues and you need to prove to network admins that it’s the network and not your server……
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Allow Diskless NetBoot From the Command Line
Client systems don’t have to have drives. Nor should they, in certain circumstances. Therefore, diskless NetBoot has been a part of OS X since the early beginnings. And it’s great provided you have the Server Admin application handy. But if you want to enable/control diskless NetBoot without Server Admin then you’re going to need to use the command line. Each of your NetBoot images will be stored in an array, which can be seen by running the serveradmin command, along with the settings option and then the net boot service, as follows: serveradmin settings netboot Locate the netBootImagesRecordsArray, which shows the images that are served up on the server. Find…
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MacTech InDepth In New York
I have been added as a speaker at MacTech InDepth in New York. If you haven’t signed up yet, and you work with Mac OS X Server then you should really check out the sessions that have been planned: The Elephant in the Room: The New Lion OS X is out, now what? There are a lot of differences to contend with between Lion and Snow Leopard. Now with the new Mountain Lion update, what changes can we expect to see? We discuss the differences in advanced services, GUI simplicity, and Apache management GUI’s. We help you understand the updates in the new OS and make the transition easier. We…
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15 Changes in Snow Leopard Server
Now that Mac OS X Server 10.6 has been out for a little while and the new features have able to sink in a bit, it seems like a good time to lay out what those new features are. While on the outside Mac OS X Server 10.6 has been described as a minor update outside of the whole 64-bit thing, it’s worth noting that it sports about as many new features as every version of Mac OS X Server that it follows. These include: NetRestore has been integrated with System Image Utility to facilitate easier creation of NetRestore NetBoot sets, allowing for asr-based restores (asr has not been given…
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NetRestore No More…
Mike Bombich is retiring NetRestore: http://www.bombich.com/software/netrestore.html
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Mac OS X: Continuing to Reduce Image Sizes
We discussed reducing your image size by about 700MB in this article: Mac OS X: Alex.SpeechVoice But if you’re building your image from a host that has already fired up once then there’s likely to be a 2GB or 4GB file called sleepimage in /var/vm. This file is recreated on startup if it’s not present and needed. This will allow you to reduce image sizes by 2GB to 4GB. If you want to get rid of the file permanently on your imaging station you can run the following command: pmset hibernatemode 0 Since you’ll likely want systems to use this feature run the command on your imaged clients with a…