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??Author: Benoit Rat, [Seven
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Solutions](www.sevensols.com??)
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### Q: Why after updating the firmware to v4.x my changes in /etc/\* files are not visible after a reboot ?
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A: Since v4.0 we unpack the root filesystem from initramfs and the
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*/etc* directory is copied at boot time from the */usr/etc*. If you want
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to make changes to the files inside the */etc*, you should modify them
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in the */usr/etc* and reboot the device. You can find more information
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about the code layout of the WR Switch in the [Building and flashing
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manual for v4.0
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release](https://www.ohwr.org/project/white-rabbit/uploads/d9f33d5629092f4453ddd4b310297b9a/wr-switch-sw-v4.0_build.pdf)
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??Author: Grzegorz Daniluk,
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[CERN](http://cern.ch??)
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-----
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## General questions
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... | ... | @@ -369,19 +382,6 @@ are produced with larger, Virtex 6 LX240T FPGA. |
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??Author: Grzegorz Daniluk,
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[CERN](http://cern.ch??)
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### Q: Why after updating the firmware to v4.x my changes in /etc/\* files are not visible after a reboot ?
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|
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A: Since v4.0 we unpack the root filesystem from initramfs and the
|
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*/etc* directory is copied at boot time from the */usr/etc*. If you want
|
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to make changes to the files inside the */etc*, you should modify them
|
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in the */usr/etc* and reboot the device. You can find more information
|
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about the code layout of the WR Switch in the [Building and flashing
|
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manual for v4.0
|
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release](https://www.ohwr.org/project/white-rabbit/uploads/d9f33d5629092f4453ddd4b310297b9a/wr-switch-sw-v4.0_build.pdf)
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??Author: Grzegorz Daniluk,
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[CERN](http://cern.ch??)
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### Q: Has any kind of lifetime study been done on the White Rabbit Switch?
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We are not aware of anyone studying this for the White Rabbit Switch. No
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