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VirtualBox/Preparing a disk image (view source)

Revision as of 23:29, 9 June 2010

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Instructions for preparing a VirtualBox disk image from a SoaS iso image file.
 
Instructions for preparing a VirtualBox disk image from a SoaS iso image file.
 
* (Taken from Dave Bauer's posting at http://schools.sugarlabs.org/mod/forum/discuss.php?d=27.)
 
* (Taken from Dave Bauer's posting at http://schools.sugarlabs.org/mod/forum/discuss.php?d=27.)
−
* Updated 21 May 2010 with [http://www.virtualbox.org/wiki/Downloads VirtualBox 3.2.0] and 64-bit Fedora.
+
* Updated 09 June 2010 with [http://www.virtualbox.org/wiki/Downloads VirtualBox 3.2.4] and 32-bit Fedora.
 
==Installing SoaS .iso image==
 
==Installing SoaS .iso image==
 
# Create a new VM, choose a name, such as Mirabelle
 
# Create a new VM, choose a name, such as Mirabelle
−
# Choose Linux for the Operating System and Version Fedora (64 bit)
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# Choose Linux for the Operating System and Version Fedora (use 64 bit, if available)
 
# Choose Base Memory Size: 256 MB to match an XO-1, 512 or 1024 MB to match an XO-1.5
 
# Choose Base Memory Size: 256 MB to match an XO-1, 512 or 1024 MB to match an XO-1.5
 
# Create a new virtual hard disk image with dynamically expanding storage of 2 GB
 
# Create a new virtual hard disk image with dynamically expanding storage of 2 GB
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# Open Terminal.
 
# Open Terminal.
 
# su -
 
# su -
−
# parted /dev/sda
+
# parted
 
# mklabel msdos
 
# mklabel msdos
 
#: This makes a partition table.
 
#: This makes a partition table.
 
# mkpart primary ext2 0 2048
 
# mkpart primary ext2 0 2048
 +
#: You will receive this message:<br>Warning: The resulting partition is not properly aligned for best performance.<br>Ignore/Cancel?
 +
#: Enter (I)gnore
 
# toggle 1 boot
 
# toggle 1 boot
 
# quit
 
# quit
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# /LiveOS/livecd-iso-to-disk --overlay-size-mb 200 --home-size-mb 200 --delete-home --unencrypted-home /dev/live /dev/sda1<br>(for earlier versions of SoaS
 
# /LiveOS/livecd-iso-to-disk --overlay-size-mb 200 --home-size-mb 200 --delete-home --unencrypted-home /dev/live /dev/sda1<br>(for earlier versions of SoaS
 
#: Blueberry - use /media/soas-2-blueberry/LiveOS/livecd-iso-to-disk<br>Strawberry - use /mnt/live/LiveOS/livecd-iso-to-disk)
 
#: Blueberry - use /media/soas-2-blueberry/LiveOS/livecd-iso-to-disk<br>Strawberry - use /mnt/live/LiveOS/livecd-iso-to-disk)
−
#* the --overlay-size-mb NNN and --home-size-mb NNN options creates space for persistence of changes on the disk; otherwise, a liveOS disk is read-only. See [[LiveOS image]].
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<ul>
−
#: <br>The following optional parameters seem to be incompatible with soas-1-strawberry and soas-2-blueberry released versions.  (The script completes successfully, but the virtual machine startup process has trouble finding the home directory and fails to complete.)
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{{Show|<Terminal log>
−
#* the --home-size-mb NNN option creates space for saving the /home/liveuser folder if you want to update the OS image while keeping the user files.  (In this case, skip the new disk creation and parted steps and leave out the --home-size-mb NNN option at this step and continue on.)
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|<pre>
−
#* the --unencrypted-home option prevents password protection and encryption on the /home/liveuser folder. This releaves the overhead on the compressed squashfs and should be more robust to file system failures (outside of security).
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[root@localhost ~]# parted
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#* the --delete-home option is used to avoid an error message while requesting both a new home (with --home-size-mb) and a persistent home (with--unencrypted-home).  You wouldn't use this option on an upgrade.
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GNU Parted 2.1
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# shutdown -h now
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Using /dev/sda
 +
Welcome to GNU Parted! Type 'help' to view a list of commands.
 +
(parted) mklabel msdos                                                   
 +
(parted) mkpart primary ext2 0 2048
 +
Warning: The resulting partition is not properly aligned for best performance.
 +
Ignore/Cancel? I                                                         
 +
(parted) toggle 1 boot                                                   
 +
(parted) quit                                                           
 +
Information: You may need to update /etc/fstab.                         
 +
 
 +
[root@localhost ~]# mke2fs /dev/sda1
 +
mke2fs 1.41.10 (10-Feb-2009)
 +
Filesystem label=
 +
OS type: Linux
 +
Block size=4096 (log=2)
 +
Fragment size=4096 (log=2)
 +
Stride=0 blocks, Stripe width=0 blocks
 +
125184 inodes, 500000 blocks
 +
25000 blocks (5.00%) reserved for the super user
 +
First data block=0
 +
Maximum filesystem blocks=515899392
 +
16 block groups
 +
32768 blocks per group, 32768 fragments per group
 +
7824 inodes per group
 +
Superblock backups stored on blocks:
 +
    32768, 98304, 163840, 229376, 294912
 +
 
 +
Writing inode tables: done                           
 +
Writing superblocks and filesystem accounting information: done
 +
 
 +
This filesystem will be automatically checked every 36 mounts or
 +
180 days, whichever comes first.  Use tune2fs -c or -i to override.
 +
[root@localhost ~]# /LiveOS/livecd-iso-to-disk --overlay-size-mb 200 --home-size-mb 200 --delete-home --unencrypted-home /dev/live /dev/sda1
 +
Verifying image...
 +
/dev/sr0:  0ce28e3947106fd37bab9317abf09938
 +
Fragment sums: a3c6e5fd5fba11d2b4da71771e8732b63bcb62b841971f7f39ab5c187f64
 +
Fragment count: 20
 +
Checking: 100.0%
 +
 
 +
The media check is complete, the result is: PASS.
 +
 
 +
It is OK to use this media.
 +
Copying live image to USB stick
 +
Updating boot config file
 +
Initializing persistent overlay file
 +
0+0 records in
 +
0+0 records out
 +
0 bytes (0 B) copied, 0.000150187 s, 0.0 kB/s
 +
Initializing persistent /home
 +
0+0 records in
 +
0+0 records out
 +
0 bytes (0 B) copied, 0.0039562 s, 0.0 kB/s
 +
Formatting unencrypted /home
 +
mke2fs 1.41.10 (10-Feb-2009)
 +
Filesystem label=
 +
OS type: Linux
 +
Block size=1024 (log=0)
 +
Fragment size=1024 (log=0)
 +
Stride=0 blocks, Stripe width=0 blocks
 +
51200 inodes, 204800 blocks
 +
10240 blocks (5.00%) reserved for the super user
 +
First data block=1
 +
Maximum filesystem blocks=67371008
 +
25 block groups
 +
8192 blocks per group, 8192 fragments per group
 +
2048 inodes per group
 +
Superblock backups stored on blocks:
 +
    8193, 24577, 40961, 57345, 73729
 +
 
 +
Writing inode tables: done                           
 +
Creating journal (4096 blocks): done
 +
Writing superblocks and filesystem accounting information: done
 +
 
 +
This filesystem will be automatically checked every 26 mounts or
 +
180 days, whichever comes first.  Use tune2fs -c or -i to override.
 +
tune2fs 1.41.10 (10-Feb-2009)
 +
Setting maximal mount count to -1
 +
Setting interval between checks to 0 seconds
 +
Installing boot loader
 +
/media/usbdev.XB8shz/syslinux is device /dev/sda1
 +
USB stick set up as live image!
 +
</pre>}}
 +
* the --overlay-size-mb NNN and --home-size-mb NNN options creates space for persistence of changes on the disk; otherwise, a liveOS disk is read-only. See [[LiveOS image]].
 +
: <br>The following optional parameters seem to be incompatible with soas-1-strawberry and soas-2-blueberry released versions.  (The script completes successfully, but the virtual machine startup process has trouble finding the home directory and fails to complete.)
 +
* the --home-size-mb NNN option creates space for file storage in the /home/liveuser folder.  (In the case where you you want to update the LiveOS image while keeping the user files, skip the new disk creation and parted steps, leave out the --home-size-mb NNN option at this step, and continue on.)
 +
* the --unencrypted-home option prevents password protection and encryption on the /home/liveuser folder. This releaves the overhead on the compressed [[wikipedia:SquashFS|SquashFS]], and should be more robust to file system failures (outside of security).
 +
* the --delete-home option is used to avoid an error message while requesting both a new home (with --home-size-mb) and a persistent home (with --unencrypted-home).  (You wouldn't use this option for the LiveOS upgrade case.)
 +
</ul>
 +
<ol start=20>
 +
<li> shutdown -h now</li>
 +
</ol>
 
==Installing VirtualBox Guest Additions==
 
==Installing VirtualBox Guest Additions==
−
# Unmount CDROM in VirtualBox settings
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# Unmount CD/DVD in VirtualBox settings, select 'Empty' for the CD/DVD device under 'Attributes'
−
# Mount VBoxGuestAdditions.iso in its place.
+
# Start the virtual machine
−
# Boot VM
   
# Open Terminal
 
# Open Terminal
 
# su -
 
# su -
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#: (Other dependencies will be called into the installation.)
 
#: (Other dependencies will be called into the installation.)
   −
<div class="NavFrame collapsed">
+
{{Show|<Terminal log from 09 June 2010>  
−
<div class="NavHead">
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|<pre>
−
<yum.log from 21 May 2010:> </div>
+
[root@localhost ~]# yum install dkms gcc
−
<div class="NavContent">
  −
<pre>
  −
[root@localhost ~]# yum install dkms gcc make
   
Loaded plugins: presto, refresh-packagekit
 
Loaded plugins: presto, refresh-packagekit
 
fedora/metalink                                                          |  13 kB    00:00     
 
fedora/metalink                                                          |  13 kB    00:00     
Retrieved from "https://wiki.sugarlabs.org/go/Special:MobileDiff/53013"

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