[nemo@Sailfish ~]$ lsblk
NAME              MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
mmcblk0rpmb       179:32   0    4M  0 disk 
mmcblk0           179:0    0 58.2G  0 disk 
|-mmcblk0p1       179:1    0    2M  0 part 
|-mmcblk0p2       179:2    0   16M  0 part 
|-mmcblk0p3       179:3    0   84M  0 part /firmware
|-mmcblk0p4       179:4    0    8K  0 part 
|-mmcblk0p5       179:5    0  512K  0 part 
|-mmcblk0p6       179:6    0  512K  0 part 
|-mmcblk0p7       179:7    0  512K  0 part 
|-mmcblk0p8       179:8    0  512K  0 part 
|-mmcblk0p9       179:9    0    2M  0 part 
|-mmcblk0p10      179:10   0    2M  0 part 
|-mmcblk0p11      179:11   0  512K  0 part 
|-mmcblk0p12      179:12   0  512K  0 part 
|-mmcblk0p13      179:13   0   16M  0 part /dsp
|-mmcblk0p14      179:14   0  1.5M  0 part 
|-mmcblk0p15      179:15   0  1.5M  0 part 
|-mmcblk0p16      179:16   0   32K  0 part 
|-mmcblk0p17      179:17   0  1.5M  0 part 
|-mmcblk0p18      179:18   0   16K  0 part 
|-mmcblk0p19      179:19   0   11M  0 part 
|-mmcblk0p20      179:20   0    1M  0 part 
|-mmcblk0p21      179:21   0    1M  0 part 
|-mmcblk0p22      179:22   0   64M  0 part 
|-mmcblk0p23      179:23   0    1M  0 part 
|-mmcblk0p24      179:24   0  256M  0 part /system/vendor
|-mmcblk0p25      179:25   0   32M  0 part /persist
|-mmcblk0p26      179:26   0  512K  0 part 
|-mmcblk0p27      179:27   0  512K  0 part 
|-mmcblk0p28      179:28   0  400M  0 part 
|-mmcblk0p29      179:29   0   32K  0 part 
|-mmcblk0p30      179:30   0  512K  0 part 
|-mmcblk0p31      179:31   0  256K  0 part 
|-mmcblk0p32      259:0    0    4M  0 part 
|-mmcblk0p33      259:1    0  256K  0 part 
|-mmcblk0p34      259:2    0  256K  0 part 
|-mmcblk0p35      259:3    0  256K  0 part 
|-mmcblk0p36      259:4    0  256K  0 part 
|-mmcblk0p37      259:5    0  256K  0 part 
|-mmcblk0p38      259:6    0  256K  0 part 
|-mmcblk0p39      259:7    0    8K  0 part 
|-mmcblk0p40      259:8    0   40M  0 part 
|-mmcblk0p41      259:9    0   40M  0 part 
|-mmcblk0p42      259:10   0   64M  0 part 
|-mmcblk0p43      259:11   0   32M  0 part 
|-mmcblk0p44      259:12   0   10M  0 part 
|-mmcblk0p45      259:13   0   16M  0 part 
|-mmcblk0p46      259:14   0   20M  0 part 
|-mmcblk0p47      259:15   0  100K  0 part 
|-mmcblk0p48      259:16   0  100K  0 part 
|-mmcblk0p49      259:17   0  512K  0 part 
|-mmcblk0p50      259:18   0  512K  0 part 
|-mmcblk0p51      259:19   0 49.8G  0 part 
| |-sailfish-root 253:0    0  2.5G  0 lvm  /
| `-sailfish-home 253:1    0 47.4G  0 lvm  /home
`-mmcblk0p52      259:20   0  7.3G  0 part /fimage

$ du -chs /fimage/
488M    /fimage/