On Tue, 28 May 2019 19:14:25 -0700
Rick Moen <rick@???> wrote:
> Quoting Bruce Ferrell (bferrell@???):
>
> > Sorry Rick... I missed that.
>
> No worries (as our Australian friends say).
>
> > I am absolutely astounded by the number of time I've seen *IX
> > "admins" at fortune X companies copy a tree to a windows share and
> > wonder why it's broken when they try to restore from it. NFS, if not
> > done correctly, can do that same thing too. So...
>
> Reminds me of something I forgot to mention earlier. Most Linux folks
> have heard of the stat(2) system call, but did you know there's also
> an informative stat(1) system _utility_? Play with it on diverse
> sorts of file/directory targets, and see how informative it is. It
> shows in human-readable form _all_ metadata available about any
> filesystem object.
>
> Around 2001 when I was writing an article for _Linux Journal_ about
> then-new USB flash drives called 'Floppies for the New Millennium', it
> belatedly occurred to me to wonder how the vfat filesystem (typically
> used on flash drives) dealt with storage of native *ix's three time
> stamps (ctime, mtime, atime) on a filesystem (vfat) incapable of
> storing more than a single time stamp. The answer is logical: All
> three get instantiated by overloading the single DOS time stamp,
> which thus gets rewritten every time any of them must be updated.
> And, point is, one can observe this kludge at work
> using /usr/bin/stat.
>
> Anyway, to second what you said: Any storage target that's not
> Linux-native, and NTFS is case in point, is going to unavoidably
> introduce some degree of silent metadata loss (absent encapsulation,
> such as in a tarball), so beware.
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huh, interesting. I've always just used ext2 on my floppies. still do.
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Re: [DNG] backups from ext4 to ntfs…
