I am asking what happens if my laptops power dies while I am downloading a website on the Linux terminal? id like to know.Thanks.
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1If the hardware dies because of power, the OS (Ubuntu) can do nothing about it .. Firmware can also shutdown your hardware automatically, eg. settings in the laptop that cause power-down if the device gets too hot (certain cpus do this automatically anyway) and Ubuntu, windoze or whatever you were running is just gone. My point is your hardware plays a huge part, then your settings (have you set power to sleep/hibernate because of inactivity (if downloading you're probably doing nothing thus triggering inactivity) etc)– guivercJan 29, 2018 at 23:36
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@guiverc Could you post this as an answer please?– thomasrutterJan 30, 2018 at 0:28
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@George More details about what you are trying to do might get you some better answers.– thomasrutterJan 30, 2018 at 0:30
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2 Answers
If your laptop power dies while downloading something, it won't be fully downloaded. Depending on what software you are using to download it, when you next boot up you'll either see a partially downloaded but incomplete file, or the file won't be there (because it was downloaded to a temporary location while it was in progress).
answered Jan 30, 2018 at 0:29
A PC/laptop/box can die for a number of reasons, a number of which an OS (Ubuntu or other) can do nothing about, for example
- cpu gets too hot; cpu shuts down instantly to protect itself (many cpus slow themselves down prior to power-down threshold)
- motherboard/bios detects overheat, shuts itself down
No OS cannot protect itself from these, and you may see fsck (file system check) messages next boot detecting & fixing issues because of this next boot.
Further your settings can influence the outcome, eg. if you're downloading a large website (eg. i read your question as during a wget -r) it will take awhile & you'll likely step away and the system may detect itself as inactive & (depending on how it was done) suspend so it didn't complete when power ran out..
The effect of this power-out will depend on software used (refer @thomasrutter's answer) and where exactly it was in the process (had it just closed the file, written part, where buffers just flushed or buffering disabled? - some of this repeats @thomasrutter's answer too). Your settings can influence some of this (esp. buffering choices for speed or security/safety) but it can be just luck..
