Sugar on a Stick/Linux: Difference between revisions
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:*''[[wikipedia:md5sum|isomd5sum]]'' is needed for the recommended verification step, which checks that the .iso file is complete after its travels. If there is a problem with the .iso file, the script will exit and provide a failure message. The verification step can be bypassed by using the <code>--noverify</code> option. | :*''[[wikipedia:md5sum|isomd5sum]]'' is needed for the recommended verification step, which checks that the .iso file is complete after its travels. If there is a problem with the .iso file, the script will exit and provide a failure message. The verification step can be bypassed by using the <code>--noverify</code> option. | ||
:*''[[wikipedia:dm-crypt|cryptsetup]]'' is only needed for the option to provide password protection and encryption for the persistent /home/liveuser folder. It is not necessary if one applies the recommended {{Code|--unencrypted-home}} option. The {{Code|--unencrypted-home}} option is preferred because the reduced overhead improves robustness with the compressed ''[[wikipedia:SquashFS|SquashFS]]'' file system employed by the Live USB deployment. | :*''[[wikipedia:dm-crypt|cryptsetup]]'' is only needed for the option to provide password protection and encryption for the persistent /home/liveuser folder. It is not necessary if one applies the recommended {{Code|--unencrypted-home}} option. The {{Code|--unencrypted-home}} option is preferred because the reduced overhead improves robustness with the compressed ''[[wikipedia:SquashFS|SquashFS]]'' file system employed by the Live USB deployment. | ||
* Plug in a | * Plug in a 2 GB or larger USB stick into your computer. | ||
* Download the installation script: http://bit.ly/livecd-iso-to-disk.<br>(You will execute this script several steps below.)<br>Execute {{Code|tools_livecd-iso-to-disk --help}} for usage details. | * Download the installation script: http://bit.ly/livecd-iso-to-disk.<br>(You will execute this script several steps below.)<br>Execute {{Code|tools_livecd-iso-to-disk --help}} for usage details. | ||
** Alternatively, with 3 available loop devices, loop mount the 'SoaS.iso' image to reach the onboard livecd-iso-to-disk script: | ** Alternatively, with 3 available loop devices, loop mount the 'SoaS.iso' image to reach the onboard livecd-iso-to-disk script: | ||
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: {{Code|chmod +x tools_livecd-iso-to-disk.sh}} | : {{Code|chmod +x tools_livecd-iso-to-disk.sh}} | ||
* Run it as root, making sure to pass the correct USB device and to set overlay and home size appropriately, depending on the stick size. | * Run it as root, making sure to pass the correct USB device and to set overlay and home size appropriately, depending on the stick size. | ||
*: {{Code|sudo ./tools_livecd-iso-to-disk.sh --reset-mbr --overlay-size-mb | *: {{Code|sudo ./tools_livecd-iso-to-disk.sh --reset-mbr --overlay-size-mb 500 --home-size-mb 900 --delete-home --unencrypted-home /path/to/SoaS.iso /dev/sd''b1''}} | ||
** {{Highlight|'''Note''': Subsequent USB or SD devices may be installed from a running ''Sugar on a Stick'' image that was installed with the livecd-iso-to-disk script downloaded after 15 February 2011 (but not those installed by other methods) by running this command from a root user Terminal window:}} | ** {{Highlight|'''Note''': Subsequent USB or SD devices may be installed from a running ''Sugar on a Stick'' image that was installed with the livecd-iso-to-disk script downloaded after 15 February 2011 (but not those installed by other methods) by running this command from a root user Terminal window:}} | ||
**: {{Code|/LiveOS/livecd-iso-to-disk --reset-mbr --overlay-size-mb | **: {{Code|/LiveOS/livecd-iso-to-disk --reset-mbr --overlay-size-mb 500 --home-size-mb 900 --delete-home --unencrypted-home /dev/sr0 /dev/sd?1}} | ||
: The ''livecd-iso-to-disk'' installation method has other advantages over the ''liveusb-creator'' method by allowing the creation of a separate, persistent /home/liveuser folder with the <tt>--home-size-mb ''NNN''</tt> option. This feature avoids consumption of the write-once persistent overlay for Activity storage (see [[LiveOS image]]) and allows one to update the OS image while keeping the user files (by running the script against your existing installation but <u>leaving out</u> the --home-size-mb NNN option). | : The ''livecd-iso-to-disk'' installation method has other advantages over the ''liveusb-creator'' method by allowing the creation of a separate, persistent /home/liveuser folder with the <tt>--home-size-mb ''NNN''</tt> option. This feature avoids consumption of the write-once persistent overlay for Activity storage (see [[LiveOS image]]) and allows one to update the OS image while keeping the user files (by running the script against your existing installation but <u>leaving out</u> the --home-size-mb NNN option). | ||
::* The {{Code|--delete-home}} option is used to avoid an error message while requesting both a new home (with {{Code|--home-size-mb}}) and a persistent home (indirectly with {{Code|--unencrypted-home}}). You wouldn't use the --delete-home option on an upgrade of the operation system only. | ::* The {{Code|--delete-home}} option is used to avoid an error message while requesting both a new home (with {{Code|--home-size-mb}}) and a persistent home (indirectly with {{Code|--unencrypted-home}}). You wouldn't use the --delete-home option on an upgrade of the operation system only. | ||
:Depending on the size of your USB stick, you may have to decrease {{Code|--overlay-size-mb}} and {{Code|--home-size-mb}} values (for example, for a | :Depending on the size of your USB stick, you may have to decrease {{Code|--overlay-size-mb}} and {{Code|--home-size-mb}} values (for example, for a 2 GB stick, use 500 for the overlay and 900 for the home folder). | ||
:: If you have sufficient capacity on your target device, and format it with an ext[234] filesystem to overcome the 2048-MB fat32 file size limit, you may avoid the SquashFS compression by including the {{Code|--skipcompress}} option in the script command line. | :: If you have sufficient capacity on your target device, and format it with an ext[234] filesystem to overcome the 2048-MB fat32 file size limit, you may avoid the SquashFS compression by including the {{Code|--skipcompress}} option in the script command line. | ||
<!--:* If you get an error about udevinfo, you have the new version of udev where "udevadm info" is the proper command. | <!--:* If you get an error about udevinfo, you have the new version of udev where "udevadm info" is the proper command. | ||
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<pre> | <pre> | ||
$ sudo ./livecd-iso-to-disk.sh --reset-mbr --overlay-size-mb | $ sudo ./livecd-iso-to-disk.sh --reset-mbr --overlay-size-mb 500 --home-size-mb 900 --delete-home --unencrypted-home /mnt/VMs/Fedora-13-x86_64-Live-SoaS.iso /dev/sdb1 | ||
Verifying image... | Verifying image... | ||
/mnt/VMs/Fedora-13-x86_64-Live-SoaS.iso: 7bb43cb6237802347e06d636b5974796 | /mnt/VMs/Fedora-13-x86_64-Live-SoaS.iso: 7bb43cb6237802347e06d636b5974796 | ||