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| It has been shown that if you take a stick that is stuck at login and you copy over a fedora-overlay file from a working stick, the stick will boot again. Thus we are confident that the problem is corruption of the overlay file. | | It has been shown that if you take a stick that is stuck at login and you copy over a fedora-overlay file from a working stick, the stick will boot again. Thus we are confident that the problem is corruption of the overlay file. |
| + | : It may also be exhaustion of the overlay. See [[LiveOS image]]. --[[User:FGrose|FGrose]] 22:31, 26 September 2010 (EDT) |
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| ''Next Steps'' - Try some alternate file structures. | | ''Next Steps'' - Try some alternate file structures. |
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| # Create a Fedora Full Install USB Stick, restart it a bunch of times and see if it does better. How much space will the Fedora Full Install take?<br>So far its > 4GB http://wiki.sugarlabs.org/go/VMware#Full_Install_with_F11_Net_install_CD_to_USB_Stick | | # Create a Fedora Full Install USB Stick, restart it a bunch of times and see if it does better. How much space will the Fedora Full Install take?<br>So far its > 4GB http://wiki.sugarlabs.org/go/VMware#Full_Install_with_F11_Net_install_CD_to_USB_Stick |
− | # Create an Open Suse USB Stick, restart it multiple times and see if it fails. How much space does it use? | + | # Create an Open Suse USB Stick, restart it multiple times and see if it fails. How much space does it use?[http://wiki.sugarlabs.org/go/Sugar_on_a_Stick/Linux/openSUSE] Note the second partition for persistence |
| + | # Create Alternate ex3 File Structured, non-live, blueberry USB [http://people.sugarlabs.org/bernie/soas-2-blueberry-direct-2GB.img.xz] (The resulting partition size on the USB can be resized with gparted if more storage is needed)[http://people.sugarlabs.org/Tgillard/soas-2-blueberry-direct-cleared-3GB.txt] |
| + | |
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| ''Background Links'' | | ''Background Links'' |
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| Here is an idea for an alternative USB Format: [[http://wiki.sugarlabs.org/go/Sugar_on_a_Stick/USB_format]] | | Here is an idea for an alternative USB Format: [[http://wiki.sugarlabs.org/go/Sugar_on_a_Stick/USB_format]] |
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− | Also see Ticket 907 [[http://dev.sugarlabs.org/ticket/907]] | + | Also see Ticket {{Bug|907}} |
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| A 2 GB USB is about $.60 more then a 1GB stick. If we need to compress less to get robustness its ok for us to require a 2GB USB. A 4GB stick is about $2.50 more then a $1GB Stick. | | A 2 GB USB is about $.60 more then a 1GB stick. If we need to compress less to get robustness its ok for us to require a 2GB USB. A 4GB stick is about $2.50 more then a $1GB Stick. |
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| ''Theories that have evidence against them'' | | ''Theories that have evidence against them'' |
| + | |
| + | *ext4 and data loss:http://lwn.net/Articles/322823/ (It looks like ext3 formatting may be more robust in a USB) |
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| Dave Bauer was able to replicate the failure easily by restarting a Sugar stick. This means its probably not: | | Dave Bauer was able to replicate the failure easily by restarting a Sugar stick. This means its probably not: |
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| There was a detailed discussion thread back in February at: http://lists.laptop.org/pipermail/devel/2009-February/022987.html | | There was a detailed discussion thread back in February at: http://lists.laptop.org/pipermail/devel/2009-February/022987.html |
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− | If we understood how to win and we had our own stick creation activity perhaps we would have less failures. | + | If we understood how to win and we had our own stick creation activity perhaps we would have less failures. |
| + | *Look at How To Sugarize liveusb-creator:[http://wiki.sugarlabs.org/go/Category_talk:Live_USB] for a working method to do this. |
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| ====Sticks are of poor quality==== | | ====Sticks are of poor quality==== |
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| Yes they are, but its not at all clear to me that that correlates with the sticks that are failing. | | Yes they are, but its not at all clear to me that that correlates with the sticks that are failing. |
| + | |
| + | '''Current experements on delayed writes from cache in live usb's '''[http://wiki.sugarlabs.org/index.php?title=Talk:Sugar_on_a_Stick/Stick_Layout&action=edit&redlink=1] |
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| ====There is a bug around restarting==== | | ====There is a bug around restarting==== |
− | It is very common to fail after a restart, the system forgets its supposed to go to Sugar. See ticket 1069 [[http://dev.sugarlabs.org/ticket/1069]] | + | It is very common to fail after a restart, the system forgets its supposed to go to Sugar. See ticket {{bug|1069}} |