This is not a problem per se, but it confuses me and I think I see this kind of thing for the first time.
Yesterday I installed new Manjaro Xfce installation on disk sda1. There were also previous installations of Manjaro present on this laptop, namely on sda2 and sda4. I distinctly remember that I installed this latest OS on sda1 because it used to be ntfs and I formatted it as ext4 for Manjaro.
While the OS is booting, it writes that it is booting from sda1. However, if I type sfdisk -l in terminal, it shows sda4 as the current boot partition:
$ sudo sfdisk -l [sudo] password for blueflame71: Disk /dev/sda: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors Disk model: ST1000LM024 HN-M Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x32774d96 Device Boot Start End Sectors Size Id Type /dev/sda1 2048 496197631 496195584 236.6G 83 Linux /dev/sda2 496197632 1212997631 716800000 341.8G 83 Linux /dev/sda3 1212997632 1264197631 51200000 24.4G 82 Linux swap / Solaris /dev/sda4 * 1264197632 1953523711 689326080 328.7G 83 Linux
Gparted also shows that sda4 is the boot partition:
Interestingly, Gparted says that sda4 is not mounted. So how can an unmounted partition be the one from which the current OS is booted? Could someone please clarify this for me?