
I am having difficulty in setting up backintime-qt to function as I expect; I would appreciate advice from experienced users. I’m running BIT 1.4.1-1 under Linux Mint 21.2 Cinnamon (based on Ubuntu Jammy), with Kernel 6.2.0-37. Hardware is 11th Gen Intel Core i5-11600, with 32 GiB. /Root and /Home are on separate NVME SSDs. Back up is to a 1TB 7200 rpm HDD. An nVidia 3060 GPU with 12 GiB of memory is installed. Yesterday I was able to set up and run BIT to give me backups under profiles 1 and 2 – i.e. in the Advanced section of the Manage profile s window I was able to define snapshots with the Advanced Profile entry set to 1 and then to 2, with different Includes and Excludes of my /Home folder. This was all with the Profile entry at the top of this windows set to ‘Main profile’ – which was the only option I had. After this I then added a profile (which I named) using the Add function and set up a 3rd, different set of includes and excludes. This seemed to execute as I expected. Today, when I looked at the backups, those for ‘Profile 1’ and the named profile that I set up yesterday are nowhere to be found on my system – why is that? This is worrying. The named profile which I had set up and which did run yesterday was large; it backed up the same data as my own, entirely manual backup method using FreeFileSync. I didn’t see the point of having both sets of backups, so I deleted the manually created one. Now I am, for a short window, entirely without this important data backed-up. This does not inspire confidence in BIT. I am further confused by the operation of BIT: I cannot tell (aside from looking at the log for a selected snapshot) which snapshot is the ‘Full’ backup and which are the incremental backups – they are all labelled as ‘snapshots’. I cannot understand how to create a new ‘full’ backup to replace an earlier ‘full’ backup. I need to do this because the data I am producing on my computer is important and complicated: accordingly I have been creating manual backups, using FreeFileSync, on average about every 20 minutes (or less) for about 15 hours a day, every day. If I don’t create a new ‘full’ backup with BIT at least daily I will end up with between 50 and hundreds of incremental backups in the worst case. Restoring such a backup archive is just impractical. What should I be doing differently? I have only just realised that my method of using FreeFileSync, as an incremental backup tool, essentially continually updates an original full backup, ‘on the fly’, so that a restore merely requires me to copy just 1 data set back to the original location. The weakness of this model is that it cannot handle the situation where increment ‘n-1’ is in fact preferable to increment ‘n’ : ‘n-1’ has been overwritten by ‘n’. Any comment? Finally, the backups that are running – accounting for about 44 GiB of data - have taken just over 4 hours to run. I can do a complete manual update of my whole system, including the files in /Root, totaling about 695 GiB, in about 30 minutes using FreeFileSync. What am I doing wrong that BIT takes so long, even with checksums, on this reasonably quick computer?