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ATIH 2012 made an image of the whole ext4 partition, not just what is used

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Acronis True Image Home 2012. Imaging a newly installed Linux Mint 18 ext4 partition, 9.8 GB used - ATIH has produced a 230 GB image - i.e. the whole drive.

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Robert, this is correct operation when imaging Linux partitions as these are performed as sector-by-sector in my experience and thus file size equals the size of the whole partition.

The ATIH 2012 User Guide has the following note:

* The Ext2/Ext3/Ext4, ReiserFS, and Linux SWAP file systems are supported only for disk or partition backup/recovery operations. You cannot use Acronis True Image Home 2012 for file-level operations with these file systems (file backup, recovery, search, as well as image mounting and file recovering from images). You also cannot perform backups to disks or partitions with these file systems.

The above seems to imply that Acronis cannot determine what is used space on the Linux partition. The only other reason why this may be the whole partition would be if there were file system errors on the partition which will also trigger Acronis to do a sector by sector backup.