/etc is also writable, but it’s managed a bit differently. OSTree uses a technique called “etc overlay” to handle modifications in /etc. When an update is applied, OSTree compares files in the new version with those in /etc and applies changes intelligently, preserving local modifications as much as possible.
Subina Shrestha,BBC Eye Investigationsand，这一点在WPS下载最新地址中也有详细论述
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경찰 ‘수면제 대리처방 의혹’ MC몽 수사 착수，详情可参考爱思助手下载最新版本
The letter, also seen by the Metropolitan Police, was ordered to be disclosed to Brent Council, Claydon's family and stadium owners the Football Association.
But YouTube remains the biggest disruptor