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Bootable Linux USB stick: Difference between revisions
→types of USB media
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* inacceptable: tiny sticks like Sandisk Ultra Fit become hot, degrade fast and are unreliable. Cheap sticks are usually just too slow. | * inacceptable: tiny sticks like Sandisk Ultra Fit become hot, degrade fast and are unreliable. Cheap sticks are usually just too slow. | ||
The drawback of the "good" solution above is: from time to time (e.g. once every week), a knowledgeable person | The drawback of the "good" solution above is: from time to time (e.g. once every week), a knowledgeable person may want to | ||
# remove the microSD card from the USB3 adapter | # remove the microSD card from the USB3 adapter | ||
# insert it into the SD adapter, and that into a SD slot - it is usually auto-mounted by the operating system | # insert it into the SD adapter, and that into a SD slot - it is usually auto-mounted by the operating system | ||
# run the <code>fstrim -v /mount/point</code> command (this takes a few seconds) | # run the <code>fstrim -v /mount/point</code> command (this takes a few seconds) | ||
# unmount the card, and revert steps 2. and 1. | # unmount the card, and revert steps 2. and 1. | ||
This naturally begs the question whether it wouldn't be much smarter to not use an USB adapter for microSD cards, but rather just use the SD adapter in a SD slot right away. That would have advantages - the SD card vanishes in most SD slots which is better than an USB stick sticking out, <code>fstrim</code> works, and possibly the SD controller is faster than the USB3 controller (depending on the notebook model). However, we tried to boot a microSD card in a SD lot and found that it doesn't boot, whereas it does boot in an USB adapter. Thus, setup of a microSD card for booting in SD slot needs to be investigated. | |||
=== TRIM === | === TRIM === | ||