On Fri, Sep 15, 2000 at 05:01:28PM -0500, Pat Mahoney wrote: > > Is ext2 really fine for floppies? Doesn't information about ownership get > stored onto the floppy, and then when you transfer it do a different system, > the files will be owned by non-existant users... Or am I way off here?
yes ext2fs floppies work like any other media with an ext2fs, so ownership and permissions work as on the hard disk. ext2 most other unix filesystems stores a numeric UID and GID, these corrospond to the users and groups in /etc/passwd and /etc/group. so yes if you make files on the floppy owned by a user with UID 1000 and take it to a redhat system (which annoyingly starts users at uid 500) the files will show up `unowned' but it really does not matter much on a floppy, since if the person can mount it they probably have root privileges anyway and the security won't matter. on the other hand using ext2fs protects your data from win*/dos/mac users ;-) (well they can erase it but won't be able to read it) > Maybe the user who mounts the disk owns, say /floppy and can do whatever > because of that... nope, regardless of who mounts it and how the ownership and permissions are read from the filesystem, just like a hard disk. BTW: your Mail-Followup-To is broken. user `pat' does not exist here. -- Ethan Benson http://www.alaska.net/~erbenson/
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