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Bootable Linux USB stick: Difference between revisions
→fill empty space of a partition with “zeroes”
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=== fill empty space of a partition with “zeroes” === | === fill empty space of a partition with “zeroes” === | ||
This could be done after updating the software or data on the USB media, and before saving and compressing an image of it. | This could be done after updating the software or data on the USB media, and before saving and compressing an image of it. | ||
USB sticks that support “Deterministic read data after TRIM” according to <code>hdparm -I /dev/sdX</code>, and microSD cards (which have zeroes in free space after <code>fstrim</code> in a SD slot) should be TRIMmed because this does not wear out the storage cells. | USB sticks that support “Deterministic read data after TRIM” according to <code>hdparm -I /dev/sdX</code>, and microSD cards (which have zeroes in free space after <code>fstrim</code> in a SD slot) should rather be TRIMmed because this does not wear out the storage cells. | ||
Other media: as root | Other media: as root | ||