Changes between Initial Version and Version 1 of Installation/OSImages


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Timestamp:
Jul 25, 2011 8:09:12 AM (13 years ago)
Author:
jhickey
Comment:

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  • Installation/OSImages

    v1 v1  
     1== The standard image format ==
     2
     3Images are stored in a custom Emulab format called imagezip.  The extension is '.ndz'.  This represents the raw data that will be loaded on the testbed node disks.  It does not contain any of the necessary metadata about partitions, what sort of OS the image contains, etc.  We have a XML file that contains this called the image descriptor file.
     4
     5
     6== Downloading the Standard Operating System images ==
     7
     8Standard Testbed images are located at [http://www.deterlab.net/~jjh/Deter%20OS%20Images/].
     9The standard location for testbed-wide images is on boss in /usr/testbed/images.
     10
     11There is a simple script called "fetch_images" located in the install directory of the testbed source to automate downloading these images.
     12{{{
     13[jjh@boss ~/testbed/install]$ ./fetch_images
     14  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
     15                                 Dload  Upload   Total   Spent    Left  Speed
     16100  2045  100  2045    0     0   162k      0 --:--:-- --:--:-- --:--:--  665k
     17Fetching CentOS5.ndz
     18  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
     19                                 Dload  Upload   Total   Spent    Left  Speed
     20100  604M  100  604M    0     0  65.2M      0  0:00:09  0:00:09 --:--:-- 74.2M
     21Fetching FBSD8-STD.ndz
     22  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
     23                                 Dload  Upload   Total   Spent    Left  Speed
     24100  443M  100  443M    0     0  74.2M      0  0:00:05  0:00:05 --:--:-- 75.2M
     25Fetching FBSD62-STD.ndz
     26  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
     27                                 Dload  Upload   Total   Spent    Left  Speed
     28100  295M  100  295M    0     0  67.5M      0  0:00:04  0:00:04 --:--:-- 67.6M
     29Fetching Ubuntu1004-STD.ndz
     30  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
     31                                 Dload  Upload   Total   Spent    Left  Speed
     32100  849M  100  849M    0     0  72.9M      0  0:00:11  0:00:11 --:--:-- 73.5M
     33[jjh@boss ~/testbed/install]$ cd /usr/testbed/images/
     34[jjh@boss /usr/testbed/images]$ ls
     35CentOS5.ndz             FBSD62-STD.ndz          FBSD8-STD.ndz           Ubuntu1004-STD.ndz
     36[jjh@boss /usr/testbed/images]$
     37}}}
     38
     39== Loading the image descriptors ==
     40
     41