On Tuesday 09 September 2008 22:28:14 Lisa Muir wrote:
> On Tue, Sep 9, 2008 at 3:21 PM, Kingsley G. Morse Jr. <change at nas.com>
wrote:
> > I had similar problems for years and seem to have
> > found a solution.
> >
> > I recently switched to running Windows under qemu,
> > which lets Windows access just one linux file
> > called a "disk image".
> >
> > Disk images encapsulate Windows file system
> > attributes, can be backed up with normal linux
> > tools, and mounted for direct linux access if
> > necessary.
>> Nice... except in todays example where I copied an ntfs file system
> from one disk to another, it was because disk a was dying badly, read
> errors, and I was doing recovery. I dont like messing with windows, so
> I'll pull the filesystem and deploy it on a new disk, and tell the
> user "its exactly as you had it, don't blame me if something aint
> working". In the odd case, you can't recover portions of the system,
> and I'll go so far as to install windows on a new disk, and overlay
> what i can recover from the dying disk.
>> For straight backup purposes, DD'ing partitions / drives is a good way
> out, but a killer for time nowadays when you're dealing with users who
> have maybe 10G of data on a 500G drive, and you gotta dd read the
> whole 500G... pipe it through gzip and endup with a nice 5G compressed
> dd file.
>> For recovery from dying disks, if you've ever tried to do it using
> windows tools they'll hit some bloody temporary internet file which
> has a filename too long, and the whole process stops, doing it with
> linux is sweet, just come back and look at the list of errors, and
> deal with them one by one.
>> I used to use cp -r and copy out entire directory structures, then
> people started bitchin about how on recovered systems life it seems
> began at the date and time of my recovery, ie, all the timestamps were
> messed up.
I think you are looking for cp -a -- mostly. It will copy the timestamp and
posix ACL's. I don't know how far this will go towards helping the ACL
problems, since it's not clear to me how ntfs-3g exposes NTFS ACL's.
&:-)
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