If you are trying to run Mac OS as the base system in a Docker container, unfortunately there is no way to do it. Docker container need to use the host machine's Linux Kernel, since Mac OS family is Unix-based operating system, currently Docker cannot simulate a Mac OS in Docker container. Here is a link to explain how container works. Squash for Mac is a native Mac app that's fast, fun and powerful. Squash can maintain image quality while reducing file size and saving space. Squash 2 for Mac — Compress Images For The Web Without Losing Quality.
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␡System Image Utility (SIU) is an application that you can use to create Mac OS X v10.6 network disk images. SIU is located in the /Applications/Server folder on your Mac OS X Server v10.6 computer, or it can be installed as part of the Server Admin Tools v10.6 on any Mac OS X v10.6 computer. Network disk images are modified system images that have been created for use with the NetBoot service. As you can probably tell from the name, NetBoot allows you to start multiple Mac computers via a network connection to network disk images hosted on a Mac OS X server. NetBoot is Apple’s primary network-based system deployment mechanism, and as such, is one of the primary topics of Chapter 5, “Deploying System Images.”
Though SIU is primarily designed to facilitate the NetBoot service, it’s introduced in this chapter because it’s the only Apple tool that provides an easy-to-use automated method for creating deployable system images. Specifically, SIU in Mac OS X v10.6 introduces a new network disk image type, NetRestore, which can be used to create and deploy system images. Further, even if you don’t intend to use the Mac OS X NetBoot service, you can still use SIU as an automated tool for creating full system images to be deployed using another mechanism.
Although Mac OS X Server v10.6 supports hosting images with previous versions of Mac OS, the 10.6 version of SIU can only create network disk images of Mac OS X v10.6.x or Mac OS X Server v10.6.x. Therefore, if you wish to create network disk images of previous versions of Mac OS X you must also use previous versions of the Mac OS X Server administration tools.
As when creating a standard system image, you must have a source from which to create your network disk images. SIU can create network disk images of Mac OS X or Mac OS X Server from two primary sources; Mac OS X installation media or any system volume that is not currently booted. Additionally, SIU treats the contents of a mounted disk image identically to that of a standard volume. Thus, if a disk image volume’s contents constitute a copy of the Mac OS X installation media, SIU will recognize the mounted volume as installation media. Conversely, if a disk image volume’s contents are that of an installed and configured system, SIU will recognize the mounted volume as a nonbooted system volume.
System Image Utility creates three types of network disk images:
SIU features a two-mode interface that allows you to create either basic network disk images with just a few clicks or more complicated images based on a customized workflow. This chapter focuses on the “basic” mode while Chapter 5, “Deploying System Images,” focuses on building customized network disk images with SIU.
When using the “basic” SIU mode, there are two main choices you make; selecting the Mac OS X system source and choosing the network disk image type. The resulting image created by SIU will vary based on the selected source and type of image you are creating.
If your system source is Mac OS X installation media, and you choose to create a...
NetBoot image—A Mac booting from this image will start up to a fully functional, though completely generic, version of Mac OS X based on the installation media. This is not a very useful build combination when using SIU in “basic” mode.
NetInstall image—A Mac booting from this image will start up to an installer interface identical to that based on the installation media. This allows you to provide access to the installation media from the network.
NetRestore image—A Mac booting from this image will start up to an interface allowing you to restore a generic system image based on the installation media. In other words, SIU will build a restorable system image by installing Mac OS X to a disk image based on the default installation settings. Again, when using SIU in “basic” mode this is not a very useful build combination. However, this combination provides the basis for building a modular system image, as covered later in this chapter.
If your system source is a nonbooted system volume, and you choose to create a...
NetBoot image—A Mac booting from this image will start up to a system identical to that of the source system volume. This allows you to provide access to a fully configured system from the network. This combination is used most often for “diskless” deployments wherein the local Mac does not have a system installed; it instead relies solely on a NetBoot system. This combination is also used to create an administration, maintenance, and recovery system that can be accessed from the network.
NetInstall image—SIU will not let you select this combination because the source is not valid Mac OS X installation media.
NetRestore image—A Mac booting from this image will start up to an interface allowing you to restore a system image based on the source system volume. In other words, SIU will build a restorable system image by cloning the source system. While you could certainly do this yourself using the manual methods outlined previously in this chapter, SIU takes this to the next step by “wrapping” the restore system image in a NetRestore system. The image built by this combination, when hosted from a NetBoot server, is the easiest method to deploy a cloned system image via the network.
After connecting a scanner to your Mac, use Image Capture to scan images. If your scanner has an automatic document feeder, you can scan several pages at once. If you have a flatbed scanner, you can scan multiple images, straighten any that were placed crooked on the scan bed, and save each image to its own file.
Connect your scanner to your computer, then turn on your scanner.
In the Image Capture app on your Mac, select your scanner in the Devices or Shared list.
If you don’t see your scanner in the list, see Set up a scanner.
Scan your images.
If you have a scanner with an automatic document feeder or flatbed scanner, see Scan images or documents.
Tip: Some scanners indicate how an item is positioned on the scanner, so you can adjust it on the scanner before scanning. If you don’t see the Orientation buttons in the Scanner window, click Show Details.