I have read that booting your Raspi from a USB 3.0, improves a lot the performance of the system.
It makes sense, since the write/read speed of a sd-card is 14.6 MB/s (Class 10) where a USB 3.0 is 2x , i.e. 30MB/s .
Anyone booting from a USB 3.0 stick can confirm this improvement?
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Booting from a USB 2.0 stick is usually considerably faster than SD. I've never tested a 3.0 stick in my pi, but considering they generally perform well even in a 2.0 port it would likely do well as a boot device. I doubt you would see more than 35 MBps.
Yes they are 2.0 ports. In theory no you shouldn't see any advantage, however, many (but not all) USB 3.0 sticks are built with better components so they end up coming closer to saturating the USB 2.0 bus better or delivering better latency.tatanka wrote:Raspberry Pi USB are 2.0 USB ports?
There is any advantage using a USB 3.0 stick on a 2.0 USB Port?
Yes you copy the Linux partition to the USB stick and edit the config file on the SD card to read from the thumb drive. There is no way to get around having an SD card on a model b.4thdwarflord wrote:The SoC only knows to use the files from the SD card when booting. Do you mean putting the Ext4/Ext3 root file system on a usb stick?