GParted 0.25.0 --enable-libparted-dmraid --enable-online-resize

Libparted 3.2

Shrink /dev/sdb1 from 26.98 GiB to 26.98 GiB  00:00:00    ( ERROR )

calibrate /dev/sdb1  00:00:00    ( SUCCESS )

path: /dev/sdb1 (partition)
start: 2048
end: 56586239
size 56584192 (26.98 GiB)
check file system on /dev/sdb1 for errors and (if possible) fix them  00:00:00    ( SUCCESS )

fsck.fat -a -w -v /dev/sdb1  00:00:00    ( SUCCESS )

fsck.fat 3.0.28 (2015-05-16)
Checking we can access the last sector of the filesystem
Boot sector contents:
System ID "mkdosfs"
Media byte 0xf8 (hard disk)
512 bytes per logical sector
512 bytes per cluster
32 reserved sectors
First FAT starts at byte 16384 (sector 32)
2 FATs, 32 bit entries
395264 bytes per FAT (= 772 sectors)
Root directory start at cluster 2 (arbitrary size)
Data area starts at byte 806912 (sector 1576)
98776 data clusters (50573312 bytes)
63 sectors/track, 255 heads
0 hidden sectors
100352 sectors total
Reclaiming unconnected clusters.
Checking free cluster summary.
/dev/sdb1: 5 files, 13748/98776 clusters
shrink file system  00:00:00    ( ERROR )

using libparted
libparted messages    ( INFO )

GNU Parted cannot resize this partition to this size. We're working on it!
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