/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.
p->scavange++;，更多细节参见旺商聊官方下载
第八十三条 有下列行为之一的，处十日以上十五日以下拘留，可以并处五千元以下罚款；情节较轻的，处五日以下拘留或者一千元以下罚款：，这一点在旺商聊官方下载中也有详细论述
fun toByteArray(data: PlatformByteArray): ByteArray
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