Rsync is copying files that have not changed

[linux_trojan]

This is the command I am using

rsync -avu --delete /source /destinatoin

I only want to update files that have changed and new files and delete non existing files. Yet, everything is getting copied. Takes 5 days.

[Moonstone Man]

This is the command I am using

rsync -avu --delete /source /destinatoin

I only want to update files that have changed and new files and delete non existing files. Yet, everything is getting copied.

That will happen unless both source and destination are mounted on their respective hosts with the noatime option in fstab.

[linux_trojan]

Help me out here. I am not sure what this means.

Source is on my computer. Destination is a network drive that I have mounted, actually on /mnt but as user not root. I have to change the fstab for Source? Its actually two drives in source /dev/sda has /home and sdb is mounted on /home/user/movies

[linux_trojan]

is this what you mean?

in fstab go to my partitions and insert defaults,noatime
then mount //network drive /linux folder -o noatime

[Moonstone Man]

Help me out here. I am not sure what this means.

https://wiki.archlinux.org/title/Fstab

The noatime option fully disables writing file access times to the drive every time you read a file...

[linux_trojan]

Can you check out my plan for doing this on the previous post? Am I reading you correctly?

[linux_trojan]

I was able to get the fstab setup I did $sudo mount -a to get it all remounted. I wasnt able to do the sudo mount with -o noatime for the network drive. I get an error.

I have never had this problem before until recently. I think Mint used to come with noatime in fstab by default. Any ways, rsync now is pretty much picking up where it left off last time, which is an improvement. Normally it would just start all over again.

[mikeflan]

I have never had this problem before until recently. I think Mint used to come with noatime in fstab by default.

I'd like to hear more about what changed on the linux_trojan computer. Different OS installed, or perhaps an update??

[linux_trojan]

I recently reformatted the drive and reinstalled everything, got everything that I had backed up previously. I was using MX Linux but started having problems. Turns out my HD was all chopped up with partitions that I did not even recognize. So, just stared all over. Repartition, reformat, reinstall, reload /home/user data.

[Aztaroth]

This is the command I am using

rsync -avu --delete /source /destinatoin

I only want to update files that have changed and new files and delete non existing files. Yet, everything is getting copied. Takes 5 days.

Can you give exact syntax of the command you used ? rsync won't have the same behavior depending on an '/' at the end of source or not :

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rsync -avu --delete /linux/trojan/source /linux/trojan/dest

and

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rsync -avu --delete /linux/trojan/source/ /linux/trojan/dest

are completely different :
See 3 of the 3888 lines of man rsync

A trailing slash on the source changes this behavior to avoid creating an additional directory level
at the destination. You can think of a trailing / on a source as meaning "copy the contents of this
directory" as opposed to "copy the directory by name".

Also, use -n option (dry-run) to simulate the sync before doing it when you're not sure. It will let you know if your expectancy is matched or not (especially last lines of statistics - if your initial guess is "there are 3 or 4 text files to sync" and the statistics show a 2TB data transfer, something's wrong in your command)

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rsync -avu --delete /linux/trojan/source/ /linux/trojan/dest -n

and suppress it when you're satisfied with your command line.