1OZ-CLEANUP-CACHE(1) General Commands Manual OZ-CLEANUP-CACHE(1)
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6 oz-cleanup-cache - tool to remove cached oz data
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10 oz-cleanup-cache [OPTIONS]
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14 This is a tool to remove all of the data that Oz has cached. Because
15 the data that Oz caches can grow fairly large, it may be worthwhile to
16 periodically clean it up. This is a simple script to do so. Note that
17 if you do cleanup the Oz cache, subsequent operating system installs
18 will be slower since Oz will have to re-download the installation
19 media.
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23 -c <config>
24 Get the configuration from config file config, instead of the
25 default /etc/oz/oz.cfg. If neither one exists, Oz will use sen‐
26 sible defaults. The config file is in standard ini format; for
27 an explanation of the sections and keys, see the CONFIGURATION
28 FILE section.
29 -h Print a short help message.
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34 The Oz configuration file is in standard INI format with several sec‐
35 tions. If any section or configuration key is missing, Oz will use a
36 sensible default. For true/false configuration keys, the values of
37 "true", "True", "yes", or "Yes" can be used to turn the option on, and
38 "false", "False", "no", or "No" can be used to turn the behavior off.
39 The configuration file should have the following form:
40 [paths]
43 output_dir = /var/lib/libvirt/images
44 data_dir = /var/lib/oz
45 screenshot_dir = .
46 [libvirt]
48 uri = qemu:///system
49 type = kvm
50 bridge_name = virbr0
51 [cache]
53 original_media = yes
54 modified_media = no
55 jeos = no
56 The paths section defines the paths that Oz will use for storing data.
58 The output_dir key describes where to store the images after they are
59 built, and the data_dir key describes where to cache install media and
60 use temporary storage. Both locations must have a decent amount of
61 free disk space in order for Oz to work properly. The screenshot_dir
62 key describes where to store screenshots of failed installs.
63 The libvirt section allows some manipulation of how Oz uses libvirt.
65 The uri key describes the libvirt URI to use to do the guest installa‐
66 tion. The type key defines what type of virtualization to use. The
67 bridge_name key defines which bridge Oz should place the guests that it
68 launches on.
69 The cache section allows some manipulation of how Oz caches data. The
71 caching of data in Oz is a tradeoff between installation time and stor‐
72 age space. The original_media key tells Oz to cache the original
73 installation media so that it does not have to download it the next
74 time an install for the same operating system is requested. The modi‐
75 fied_media key tells Oz to cache the oz-modified installation media so
76 that it does not have to download and modify it the next time an
77 install for the same operating system is requested. The jeos key tells
78 Oz to cache the installed operating system after installation. This
79 can significantly speed up subsequent installation of the same operat‐
80 ing system, with the additional downside of the operating system get‐
81 ting out-of-date with respect to security updates. Use with care.
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85 oz-generate-icicle(1), oz-install(1), oz-customize(1)
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89 Chris Lalancette <clalance@redhat.com>
90oz-cleanup-cache Feb 2011 OZ-CLEANUP-CACHE(1)