Bug 9103 - ext4 creation timestamp
ext4 creation timestamp
Product: rsync
Classification: Unclassified
Component: core
x64 Linux
: P5 enhancement
: ---
Assigned To: Wayne Davison
Rsync QA Contact
Depends on:
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Reported: 2012-08-20 17:27 UTC by Enda
Modified: 2014-04-19 17:22 UTC (History)
1 user (show)

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Description Enda 2012-08-20 17:27:22 UTC
Is there a way to backup (copy) data with their time creation stamps from a NTFS filesystem to a ext4 filesystem?

There's a "crtime" (create time) timestamp in the debugfs stat output. Yes, EXT4 finally supports a "born on" time (btime) like NTFS, giving the timestamp for when the file was created within the disk volume.
Comment 1 Wayne Davison 2013-05-27 00:11:09 UTC
This hasn't been implemented, but sounds like something that woulnd't be that hard to code up into the the crtime patch.
Comment 2 jaba 2014-04-17 01:18:50 UTC
Hi Wayne, I'd like to thank you for picking this up.  What's the current status?  I would also love to see Samba preserving NTFS file creation timestamps – many people have gathered files over the years, and now want to move to a Linux-based NAS.  To me, these file creation timestamps are very important.  (File modification timestamps work as expected.)
Comment 3 Wayne Davison 2014-04-19 17:22:46 UTC
If someone would like to research how code checks a crtime, coming up with a patch that changes the existing crtime.diff patch would be appreciated (or even just reporting the result of the research).  Otherwise I will look into it at some point in the future.