Fab's AutoBackup 7 Pro - a must have tool for techs

@fabs, I searched but couldn't find an answer to the following:

What causes the error "Copied file's date does not match with the original" during the back-up process? I mean, why are they not the same?
 
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Larry Sabo said:
@fabs, I searched but couldn't find an answer to the following:

What causes the error "Copied file's date does not match with the original" during the back-up process? I mean, why are they not the same?
Click to expand...
One of the reasons would be that the file has changed between the moment it was listed for copy and when it was actually copied
 
HCHTech said:
I've seen this occasionally as well, when I wasn't doing anything to the source drive - I thought at the time it must be a side effect of Fabs using VSS. I've always ignored these errors.
Click to expand...
Yes, this happens most of the time when using VSS. Just be sure that everything runs fine with restored item
 
fabs said:
Yes, this happens most of the time when using VSS. Just be sure that everything runs fine with restored item
Click to expand...

And just as a data point, I've never had the restored item be anything other than exactly what I expected it to be and, where applicable, to behave exactly as I expected it to behave.

I consider those messages "background noise" and falling into the class of "normal errors" which are not, in reality, errors.
 
fabs said:
That's why these are qualified as warnings, not errors
Click to expand...

True. I'm using the phrase "normal errors" to constitute any kind of message flagging a potential irregularity that is not, in reality, an irregularity. If you look at the Windows system log, for instance, and took everything at face value you'd believe the proverbial sky is falling, but that is actually how things work under normal circumstances.

There are warnings, and even sometimes non-fatal errors, that you learn are spurious and can safely be ignored.
 
fabs said:
One of the reasons would be that the file has changed between the moment it was listed for copy and when it was actually copied
Click to expand...
It actually happens if the file copy didn't work at all, and the same filename already exists. E.g. those warnings are in my post above about Edge files not copying because they're open.
[WARNING] "G:\Users\Owner\AppData\Local\Microsoft\Edge\User Data\Default\History" (5/2/2024 8:00:09 AM)
[WARNING] "C:\Users\User\AppData\Local\Microsoft\Edge\User Data\Default\History" (4/23/2024 11:41:42 AM)

@fabs I think the reason we see these warnings so much is that the copy failure isn't being detected or logged properly.
 
fincoder said:
It actually happens if the file copy didn't work at all, and the same filename already exists. E.g. those warnings are in my post above about Edge files not copying because they're open.
[WARNING] "G:\Users\Owner\AppData\Local\Microsoft\Edge\User Data\Default\History" (5/2/2024 8:00:09 AM)
[WARNING] "C:\Users\User\AppData\Local\Microsoft\Edge\User Data\Default\History" (4/23/2024 11:41:42 AM)

@fabs I think the reason we see these warnings so much is that the copy failure isn't being detected or logged properly.
Click to expand...
Then I need to fix that
Edit: there was no "lock" check on target file. I've added this.
Also, I have added expiration date to welcome screen beside the "check for updates" link when the program has the information in the autobackup.ini file.
 
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Hello,
Fab's AutoBackup 7 Pro and Fab's AutoBackup 7 Home & Office 7.13.3.6475 have just been released.

Here is the change log for both versions:

Added:
- If information is available, updates expiration date appears on welcome screen.

Fixed:
- Pro only: a debug message was still appearing in transfer mode while processing Microsoft Edge data and Edge was running.
- When trying to overwrite a locked file, the log used to used to say that there was a date mismatch between source and target file. Now, it tells that copy failed because target file was locked instead.

Grab it from your orders history's details on the shop's website at https://archive.fpnet.fr/account.php (ordered before May 1st 2022) or https://store.fpnet.fr/en/order-history for newer orders. You can also use the bundled updater tool (click the "Download Fab's AutoBackup 7.X" link within the program and get the updated files).
 
fabs said:
the log used to used to say that there was a date mismatch between source and target file. Now, it tells that copy failed because target file was locked instead.
Click to expand...
Yeah but how do I fix that? Fabs does this even when I'm using it to back up a drive plugged into my external enclosure. Why would Chrome have locked files that you can't even access when it's not running? Heck, even the host operating system isn't running! I just assumed the date mismatch was just normal behavior but the files are actually locked and don't get transferred? Is this why Chrome always complains and asks to reset your settings when you go into Chrome settings after a restore? I always just say no and it's fine, or so I thought.
 
sapphirescales said:
Yeah but how do I fix that? Fabs does this even when I'm using it to back up a drive plugged into my external enclosure. Why would Chrome have locked files that you can't even access when it's not running? Heck, even the host operating system isn't running! I just assumed the date mismatch was just normal behavior but the files are actually locked and don't get transferred? Is this why Chrome always complains and asks to reset your settings when you go into Chrome settings after a restore? I always just say no and it's fine, or so I thought.
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This is not that obvious.
The thing I fixed is copy errors on target files while locks were not monitored. If you still get those warnings while backing up, then this probably comes from using VSS Feature. I can still look around that.
Chrome complains because of its data encryption which is tied to source Windows user profile (my bet is on the unique GUID/SID that hides under the hood). Because of this, when Chrome data is restored to a new machine or a new user profile, that GUID/SID is not the same so, Chrome detects that restored data's encryption key does not match with expected current encryption key. Then, it thinks data has been corrupted by some third party thing and it wipes out sensitive data like passords. This is not a Fab's issue
 
fabs said:
it wipes out sensitive data like passords.
Click to expand...
Okay but that's not a big deal because the user just signs into their Google account where their passwords are stored and all their saved passwords are preserved that way. I just always say no to Chrome asking me to reset everything and I've never had a problem. Should I be doing something else?

fabs said:
I can still look around that.
Click to expand...
Please do! I hate error messages when I'm backing up client data. It makes me feel like I'm not doing something right or that they're going to be missing data. The date mismatch warning I always get is unpleasant but I've gotten used to it. Now it's going to show up as an outright error? Which one is it? Is it an actual problem that I have to be concerned about or can I safely ignore it?
 
sapphirescales said:
Okay but that's not a big deal because the user just signs into their Google account where their passwords are stored and all their saved passwords are preserved that way. I just always say no to Chrome asking me to reset everything and I've never had a problem. Should I be doing something else?
Click to expand...
Nothing else to do about that. You are doing it right
 
sapphirescales said:
I hate error messages when I'm backing up client data. It makes me feel like I'm not doing something right or that they're going to be missing data. The date mismatch warning I always get is unpleasant but I've gotten used to it. Now it's going to show up as an outright error? Which one is it? Is it an actual problem that I have to be concerned about or can I safely ignore it?
Click to expand...
I'm seeing that despite using a VSS snapshot, Chrome still locks some files (how is that possible as VSS is just a flat file copy regardless of any lock???) so they error out. I am looking for a workaround for this

Edit: I guess I am getting why I still have locks : the VSS Snapshot code in Fab's uses WMI instructions and it looks like Microsoft has removed them from Powershell. Then, the symlink that looks and smells like a real VSS snapshot link is in fact a stupid shortcut to the current drive.
So, Fab's cannot take real VSS snapshots for now. I need to find another method for that before going further.

Edit 2: The MWI instructions for VSS are removed from Powershell 7. 5.0 (which is the one almost everybody have) is still fine with this.
My problem was because Fab's used 32 bit Powershell and apparently, this one cannot make VSS snapshots anymore. So, I have changed the Powershell exe path detection code to use 64 bit version if operating system is 64 bit. Now, it makes VSS snapshots again. Let's now investigate on how to deal with date and size errors that can occur.
 
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