I'm trying to mount a hfsplus-formatted disk on Ubuntu but so far without success. The disk could be read without problems but I could not write to it. I've tried the command sudo mount -t hfsplus -o force,rw /dev/sdXY /media/mntpoint
to enforce rw but this didn't work
Also the start of the device also looks weird. Although I've left 1M in the front while creating disk partition using Gparted.
Is it possible that I did not partition the disk right?
$ fdisk -l
WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdb: 4000.8 GB, 4000752599040 bytes
255 heads, 63 sectors/track, 486397 cylinders, total 7813969920 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdb1 1 4294967295 2147483647+ ee GPT
$ sudo mount -t hfsplus -o force,rw /dev/sdb1 /media/usb
mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
$ dmesg | tail
[ 4203.926445] sd 6:0:0:0: [sdb] No Caching mode page found
[ 4203.926449] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 4203.927753] sd 6:0:0:0: [sdb] Very big device. Trying to use READ CAPACITY(16).
[ 4204.528425] sdb: sdb1
[ 4204.530422] sd 6:0:0:0: [sdb] Very big device. Trying to use READ CAPACITY(16).
[ 4204.541249] sd 6:0:0:0: [sdb] Attached SCSI disk
[ 4553.297930] gpartedbin[3975]: segfault at ffffffffffffff89 ip 000000000047e703 sp 00007fff26fcf630 error 7 in gpartedbin[400000+125000]
[ 6100.293140] gnome-disks[3150]: segfault at 0 ip 00007f7a66f8049f sp 00007fff71e278a0 error 4 in libgio-2.0.so.0.4002.0[7f7a66ea0000+16c000]
[ 6235.192031] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null)
[ 6875.096057] hfsplus: unable to find HFS+ superblock