Skip to main content

Cannot restore the backup, validate tib file or mount tib file

Thread needs solution
Beginner
Posts: 1
Comments: 5

Hello Everyone,

I have a number of Acronis 2014 backups - few full and many incrementals for win 8.1 PC.

PC's disk is gone, so I cannot tell which backup completed or not, but I do see tib files created daily at the time when the backup started/ was running. The backup files are on WD NAS device. There are other two machines backing up to the same NAS device. I am connecting to NAS via wired 100M/1G network.

I boot from Acronis Media and tried to open several most recent incremental backups, but Acronis threw an error saying the backup is corrupted and suggested to mount the image instead of restore.  However, the backup for other PC was browsable, so it is not a problem accessing the files.

I started Acronis on working PC and navigated to backup files on NAS device.

Right clicked the tib files, found Acronis, but was not able to see "mount" option, only 'validate', which threw the same corruption error.

The tib files have different sizes, mostly from 0.5-3 GB, there are few about 25 - 30 GB.

I have installed Acronis 2019, but nothing changed, still no option to 'mount' tib files from that PC.

Is there any chance to retrieve the data from those tib files?

````

Later, I checked the tib file sequence and found that it starts from: ws2_full_b2_s1_v1.tib and goes all the way to ws2_inc_b2_s424_v1.tib. Looks like there is a single full (85 GB) and 424 incremntals.

Could this be a problem for Acronis to read the entire chain and mark all *.tib as corrupted / do not mount it?

Is there a chance to to consolidate all in one using command line or other tool, if I cannot get it working via GUI?

Is it possible that accessing/reading so many files over the network is problematic for mount/validation?

Should I copy all the files to local hard drive and re-try to read it/mount it (about 700 GB)?

 

Any comments or suggestions are appreciated.

Thanks,

Nick

0 Users found this helpful
Beginner
Posts: 1
Comments: 5

I checked the tib file sequence and found that it starts from: ws2_full_b2_s1_v1.tib and goes all the way to ws2_inc_b2_s424_v1.tib. Looks like there is a single full (85 GB) and 424 incremntals.

Could this be a problem for Acronis to read the entire chain and mark all *.tib as corrupted / do not mount it?

Is there a chance to to consolidate all in one using command line or other tool, if I cannot get it working via GUI?

Is it possible that accessing/reading so many files over the network is problematic for mount/validation?

Should I copy all the files to local hard drive and re-try to read it/mount it (about 700 GB)?

 

Thanks,

Nick

 

Legend
Posts: 73
Comments: 16435

Nick, welcome to these public User Forums.

Having such a large number of incremental files does increase the risk of error or corruption creeping in, as in order to recover from the most recent s424 file requires that each and every other file in the incremental sequence right back to the initial full backup file is present, correct and without error.

What you can try doing is working forward from the initial full file on the PC that was able to browse the file contents in Explorer by double-clicking on the .tib file.

Check that you can open and browse the initial ws2_full_b2_s1_v1.tib file contents as this is essential for any later files.  If you can open & navigate the contents, then pick a random later file around 20 - 30 files into the sequence and repeat the check.

If the version chain is good up to a particular point, then you could try to recover from that point rather than losing everything.

There are no utilities to consolidate these incremental files, and any recovery always starts with the most recent good incremental file, where Acronis will walk back through the chain during the recovery process.

If you have a spare large USB drive where you can copy all the files to, then they may prove to be faster for doing recovery than doing it over the network.

Beginner
Posts: 1
Comments: 5

Hello Steve,

Thank you for your feedback.

Yes, I ended up copying entire folder with all tibs in it to local hard drive.

After that, I started ATI2019 and found that last 4 tibs have the option to "mount' when I right click the tib file.

However, I could not mount as it popped up with warning "cannot find 1" asking to browse for it. It did not take any tib (I tried full and few incremental)  

So mount is not working...

Interestingly, first backup, which is full still does not have that option.

I was able to add backup in ATI2019 and it showed last 3 days and a day earlier as available restore points.

If I go to Recover I can see the backup content and each folder / file with the size time stamp etc.

But I needed to click on numerous pop-up windows pointing to right tib, like "cannot find 221' and option to browse then after I selected it it asked  about 335 or any other.

So finally I was able to see all disk files, but the restore did nothing it spent 30 seconds and just gave me a 'reconfigure' in 'recover' tab.

Also, I tried to browse tib files in windows explorer.

I tried to browse full only (which did not show mount)

What I found is that each time I go a level down, starting from the backup name and time icon then to backup content, next to disk and folder etc, I had to point to full backup in a pop-up window ( cannot find 1 or like that)

Eventually I was able to go up to the file level and EVEN do copy/paste of some file and restore the data to other disk.

 

However, when I selected next incremental backup after full, I had to go through 2 click per level - one for full and one for incremental ... at the end I saw the files, but was not able to paste it as it gave me the error "no such interface supported" 

I search the forum and found your post that it may not work for incremental in windows explorer.

I have not tried to do the same for these 4 dates, which I could see available for restore in ATI2019 (those with mount option) as I suspect how many clicks should I do to go every time level down :(

So for me, the data is present, the backup content can be seen, but something happened with the logical structure, as every time I need to manually point to the volume that is missing (not all 400+, maybe 100+ for latest backup labels). 

Looks like that ATI restore or mount command do not support manual intervention, but 'add backup' or browsing in windows explorer does and work it around that way.

I know this become more and more complicated and honestly I am not sure why this machine had full and huge number of incrementals as nobody set it up that way. It had to do consolidation or something like that after 2 weeks or so, as it was ATI2014. I have heard about some issues in older versions with consolidation, maybe it is the one of them. Also, if having so many incrementals is not supported or may potentially impact the restore it should force it to full or do something like that (IMHO).

Also, during troubleshooting I was able to see backup activity in 'Activity' tab which showed all incremental backups as successful, with the size and time/date.

Later I had to re-import the backup and the information was never shown again.

I could not re-produce it and do not remember how I got that 'activity' retrieved.

In any case, I believe there is something Acronis team should work on, so I opened a case and provided all info including screenshots and data collected.

Fell free to comment or share your suggestions, if you have any.

I appreciate everybody's time and effort.

P.S.

I did no tried to navigate one of 4 incr backup (400+ incremental after full) that have mount option in windows explorer as it is physically impossible to do so many clicks. Maybe there is a automated way to work it around or something else Acronis team I hope will eventually come up. 

 

Thanks,

Nick

 

 

 

 

   

  

 

 

 

 

 

 

 

 

 

 

 

  

  

 

 

 

Legend
Posts: 73
Comments: 16435

Nick, the context menu options in Explorer (Mount & Validate) have some restrictions, i.e. Mount can only be used with a backup chain that includes a Partition, i.e. it has to be a Disks & Partitions type backup image.  Mount is not valid for any Files & Folders backup images as these do no contain a partition, so cannot be mounted to a drive letter.

When recovering from a Disks & Partitions backup image, then I would recommend using the Acronis Rescue Media for the version of ATI that created the .tib files if possible.

The Reconfigure option in the ATI GUI in Windows after adding an existing backup chain of files is only needed if you intend to use that backup task to create further backups - not needed when you are just wanting to recover data or the image relates to a different computer.

Unfortunately, with such long version chains such as yours with over 400 files, then if you start seeing pop-up messages for missing files, then this will repeat over and over, depending on the extent of missing files in the chain.

Do a visual check of your files on the USB drive and ensure that you have no gaps in the numbering shown in the full file names, i.e. you have every file for the same stem name of the backup.

ws2_full_b2_s1_v1.tib
ws2_inc_b2_s2_v1.tib through ws2_inc_b2_s424_v1.tib

Note: if you see any files with _v1-2.tib, then these will also be needed as this would indicate that a previous backup file was found when a new one was being created and has the same name.

Beginner
Posts: 1
Comments: 5

Thanks for the quick update, Steve.

I do not remember I saw any gaps between the files - all the numbers were 1..424, will double check that.

Yes, I saw few  with _v1-2.tib.

Could the existence of those files confuse Acronis and create a pop-up window issue?

I remember that sometimes when it popped up with "cannot find 1' I pointed to first backup in the chain, i.e. ws2_full_b2_s1_v1.tib. However sometimes, "cannot find 243', did not mean  ws2_inc_b2_s243_v1.tib - it proceeded if I chose ws2_inc_b2_s242_v1.tib or something like that.

As about mount option, all tib files are part of the image backup.

I tried to use ATI2013 and ATI2019 boot media, but they both could not read the backup saying it is corrupted. Even full was not working. I doubt that native ATI2014 will make any difference, but will try it.

This random volume (backup1 ... backup 244) pop-up / index issue does not let the backup to be restored via GUI. 

Thanks,

Nick  

 

 

 

 

Legend
Posts: 73
Comments: 16435

The presence of the v1-2 files shouldn't cause an issue if you haven't manually deleted the other files.

The missing version 1 errors can be misleading as it can mean different things (in my experience), so it may simply mean the previous v1 file in the sequence, or it can mean the initial b1 backup chain.

It can be worth trying to do a validation when booted from the ATI rescue media to see if that still tells you that the files are corrupt?  I would try just validating the full .tib file on its own to see what is shown.  Each .tib file has a series of checksum values embedded when it is created (at different points within the file) and the validation process reads through the file recalculating the checksum values and comparing with the embedded values to confirm if the file remains as initially written. Unfortunately if validation fails then it is unlikely the file can be used for a successful recovery.

Beginner
Posts: 1
Comments: 5

Hello Steve,

I moved full and a handfull number of incremental files to a separate folder.

Started from Acronis Media 2014 and was able to read the files, validate the backup even restore some.

I re-did the same and selected about 200 files - worked fine.

 

I did the same on another PC in Windows, using ATI2019.

Had some problems when Acronis or Windows Explorer tried to read original location, with all files.

I used the trick from this forum: stop Acronis services, delete / rename Acronis DB files, script folder.

Once I re-started Acronis and pointed to a new location - everything worked fine (200 files - data is OK). 

I ended up deleting just one file in that big backup sequence - last incremental, which appeared to be corrupted: ws2_inc_b2_s424_v1.tib

Also, after I added the backups I could see 'activity', which showed all backups completed.

So, as of now, I have entire chain of the backups and can restore files from s423, which is day before most recent tib file.

 

The only culprit is restoring disk to disk, i.e. restore Windows OS and data.

I suspect that backup was taken as a 'partitions backup', not a disk backup.  (even all partitions were present in the backup, including hidden/reserved/system/MBR disk 0 etc)

When I boot from Acronis media I cannot restore entire disk and need to restore partitions only.

I tried to recreate same layout, restored all, but it did not work - disk is un-bootable.

If I use a blank drive and use 'unallocated' (saw that suggestion on the forum) area for each of the partitions (total 6 partitions) - it does not let me to select last partition and MBR of disk ...

Should I try to restore disk to disk in Acronis using ATI2019 in Windows?

As this let me to perform disk to disk, but complains that "disk will be restored as is as GPT and BIOS will not boot ...". Should I disregard it and restore?

 

Thanks for your time.

 

-Nick

 

Legend
Posts: 73
Comments: 16435

Nick, good news that you have been able to resolve the issues with your incremental backup chain.

With regards to BIOS and GPT, that is important if you want the recovered drive or partitions to be bootable into Windows.

You need to check what BIOS boot modes your BIOS supports.  For GPT you need to be able to boot in UEFI mode so if your BIOS will only support Legacy / CSM boot and MBR format partitions / drive, then you do not want your recovery to result in a GPT drive & partition!

The Acronis Rescue Media is capable of being used in both Legacy & UEFI boot modes as documented in KB 59877: Acronis True Image: how to distinguish between UEFI and Legacy BIOS boot modes of Acronis Bootable Media

The other approach that may help here would be to perform a minimal clean install of Windows on your computer, then just restore the main C: partition from your backup chain, ignoring the other hidden / system partitions from the backup as these will have been recreated new by the clean install of Windows.

Beginner
Posts: 1
Comments: 5

Thank you Steve.

I was going to follow you suggestion (installing new OS and then restore just C: disk).

Before, I tired to re-run the restore from boot media again and this time I selected all partition except disk D:.

I imported the target disk as gpt (it is gpt on source machine) in Acronis and went with default settings for each partition (there were 3 system/hidden partitions + disk C + MBR for the disk) - selected unallocated and this time I was able to select a target for all of them.

Last time, when I selected all (including D) it stuck on last 1-6 partition (hidden recovery Asus 16 GB partition) - it was not showing unallocated target disk anymore (not sure why).

So, this time I restored all except D and then restored it in Acronis after I logged in to Windows.

 

So, for now everything looks good.

 

Thank you a ton Steve - you rock!

 

Regards,

Nick

 

Legend
Posts: 73
Comments: 16435

Nick, always glad to read of successful outcomes, well done for persevering with this issue.