全部博文（116）
发布时间：2014-02-06 11:14:17
What is rootfs? --------------- Rootfs is a special instance of ramfs (or tmpfs, if that's enabled), which is always present in 2.6 systems. You can't unmount rootfs for approximately the same reason you can't kill the init process; rather than having special code to check for and handle an empt.........【阅读全文】
发布时间：2014-02-06 10:47:17
---------------- One downside of ramfs is you can keep writing data into it until you fill up all memory, and the VM can't free it because the VM thinks that files should get written to backing store (rather than swap space), but ramfs hasn't got any backing store. Because of this, only ro.........【阅读全文】
发布时间：2014-02-06 10:35:51
------------------ The older "ram disk" mechanism created a synthetic block device out of an area of RAM and used it as backing store for a filesystem. This block device was of fixed size, so the filesystem mounted on it was of fixed size. 以前的"ramdisk内存磁盘"机制是在一个内存空间.........【阅读全文】
发布时间：2014-02-06 09:40:58
What is ramfs? -------------- Ramfs is a very simple filesystem that exports Linux's disk caching mechanisms (the page cache and dentry cache) as a dynamically resizable RAM-based filesystem. ramfs是一个非常简单的文件系统，它输出Linux的磁盘缓存机制(页缓存和目录缓存)作为一个动态的（大小可变的）.........【阅读全文】
发布时间：2014-02-04 00:12:17
一、准备文件 引导系统映像文件：uImage.ram 根文件系统文件：rootfs.ubi、 stage1.wrapped、uImage 工具软件：putty、Tftpd32 将上面四个文件放在同一个目录下，作为Tftpd32的工作目录 二、连接PogoPlug 配置Tftpd32 服务器，工作.........【阅读全文】
