Talk:Operating System: Difference between revisions
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Silly question, but what happen if during an OS update one (or all) battery is removed ? I don't think even what can say TI that downgrade should be impossible. On TI-68k is "theorically" impossible too --[[User:Godzil|Godzil]] 10:10, 6 August 2007 (CEST) | Silly question, but what happen if during an OS update one (or all) battery is removed ? I don't think even what can say TI that downgrade should be impossible. On TI-68k is "theorically" impossible too --[[User:Godzil|Godzil]] 10:10, 6 August 2007 (CEST) | ||
:Good point. According to bloo (I haven't tried yet to flash it myself), the whole OS is received before it is written to flash memory, so this greatly limits the risk there was with TI-68k. But still, the write may take a few seconds. If the update process was well built, the new version could be written safely next to the current one, then the old version would be deleted. The boot should be able to start the first non corrupted copy. I will probably try your idea to see, it may be dangerous but we need to take the risk (and the warranty is there anyway). [[User:ExtendeD|ExtendeD]] 13:30, 6 August 2007 (CEST) | :Good point. According to bloo (I haven't tried yet to flash it myself), the whole OS is received before it is written to flash memory, so this greatly limits the risk there was with TI-68k. But still, the write may take a few seconds. If the update process was well built, the new version could be written safely next to the current one, then the old version would be deleted. The boot should be able to start the first non corrupted copy. I will probably try your idea to see, it may be dangerous but we need to take the risk (and the warranty is there anyway). [[User:ExtendeD|ExtendeD]] 13:30, 6 August 2007 (CEST) | ||
::I tried, [[Operating System#Upgrading_the_OS]] contains the description of the behavior (there is a recovery mode, similar to TI-68k boot menu). But this doesn't tell us if it could be used to bypass the downgrade protection as long as there is only one version of the OS available. | ::I tried, [[Operating System#Upgrading_the_OS]] contains the description of the behavior (there is a recovery mode, similar to TI-68k boot menu). But this doesn't tell us if it could be used to bypass the downgrade protection as long as there is only one version of the OS available. --[[User:ExtendeD|ExtendeD]] 23:46, 6 August 2007 (CEST) | ||
Revision as of 21:46, 6 August 2007
Silly question, but what happen if during an OS update one (or all) battery is removed ? I don't think even what can say TI that downgrade should be impossible. On TI-68k is "theorically" impossible too --Godzil 10:10, 6 August 2007 (CEST)
- Good point. According to bloo (I haven't tried yet to flash it myself), the whole OS is received before it is written to flash memory, so this greatly limits the risk there was with TI-68k. But still, the write may take a few seconds. If the update process was well built, the new version could be written safely next to the current one, then the old version would be deleted. The boot should be able to start the first non corrupted copy. I will probably try your idea to see, it may be dangerous but we need to take the risk (and the warranty is there anyway). ExtendeD 13:30, 6 August 2007 (CEST)
- I tried, Operating System#Upgrading_the_OS contains the description of the behavior (there is a recovery mode, similar to TI-68k boot menu). But this doesn't tell us if it could be used to bypass the downgrade protection as long as there is only one version of the OS available. --ExtendeD 23:46, 6 August 2007 (CEST)