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SD card RO, USB drive RW

Posted: Tue Apr 05, 2016 2:55 pm
by Alexandre34
Hello.
I'm pretty sure I have readed somewhere how to mount a USB memory stick at boot, and put all the RW folders on it.
But I can't retrieve the link...
The goal is the boot on SD card, and then avoid to write on the SD (because of the risk of corruption), using the USB stick instead.
Do you know where I could find this topic ?

Re: SD card RO, USB drive RW

Posted: Tue Apr 05, 2016 2:59 pm
by RaTTuS
viewtopic.php?f=29&t=44177
however if you use a flash stick it uses the same tech as the sdcard and will corrupt as fast as the sdcard.
in general if you don't just switch off then you will not have sd card corruption
or use a real HD as the root fs

Re: SD card RO, USB drive RW

Posted: Tue Apr 05, 2016 3:24 pm
by Alexandre34
Thank you.
It doesn't really matter if the usb stick is corrupted, as long as I can log with SSH or FTP and repair it if corrupted.
What I want is to avoid is to open the box to change the SD card.

Re: SD card RO, USB drive RW

Posted: Tue Apr 05, 2016 5:37 pm
by PMI
Alexandre34 wrote:... What I want is to avoid is to open the box to change the SD card.
Just do an internet search for something like "Boot Raspberry Pi from USB drive"... Examples:

viewtopic.php?f=66&t=12015
http://www.instructables.com/id/Boot-th ... -from-USB/