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我用的tornado2.02自带的tffs文件系统不支持dos长文件名！这太让人沮丧了！！昨天我用usrTffsLnConfig()来实现tffs，当我创建了几个长的目录名关机重启后，发现这几个根本就找不到啦！ 　　后来我在google的vxworks新闻组上找到了原因：tffs对dos文件系统的结构非常敏感，要安全地使用它就只能用它自带的程序格式化，而不能用dosFsMkfs()来完成。但长文件名本身就是非标准的，它只能用dosFsMkfs()来创建，如果在tffs上实现长文件名，则造成的后果就是文件数据的丢失！ 　　这就是原因的所在。 全方如下，唉，人家早在1999年就已经在讨论这个问题了，想不到我们落后了这么久。。。 －－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－ 新闻群组 Groups search result 5 for long name group:comp.os.vxworks Search Result 5 寄件者：Leonid Rosenboim (leonid@bitband.com) 主旨：Re: Long File Name support TFFS View: Complete Thread (2 articles) Original Format 新闻群组：comp.os.vxworks 日期：1999/09/05 Assuming you are using the old dosFs, which is shipped with Tornado 2, then you are out of luck: TrueFFS is very nosy about the DosFs structure stored on its volumes, and the only safe way to use it is to format a TrueFFS volume only with the format function supplied with TrueFFS. Never use dosFsMkfs() to format a TrueFFS volume. DosFs long names are non-standard, and can be created only with dosFsMkfs(), and are known to cause file data to dissapear when used with TrueFFS, because TrueFFS's idea of the meaning of some fields in the boot block and DosFs's idea vary. This has been documented in the SPR database. Your solution is to either go to DosFs 2 which supports standard VFAT long names, or to do away with TrueFFS. Frankly I do not see why anyone would still bother with TrueFFS at all, you can get lower price per Megabyte with ATA-based Compact Flash cards, and not worry about any software issues, and remain vedor independent, buy the CF cards where it is cheaper. HTH, Leonid Anurag Srivastava wrote: > > Hi everybody, > > > > I need long file name support on TrueFFS. I am making DOS file system > > with long file name support and it is working . Does this support is > > provided in tffs for Tornado. If yes , then please send me the command > > to do s. > > > > Thanks, > > > > Anurag. ------------------------------------------------------------------------------- ©2002 Google