After create /dev/sda6, i ran partprobe:
root@darkelf:~# fdisk -l
Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders, total 488397168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x29133921
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 104859647 52428800 7 HPFS/NTFS/exFAT
/dev/sda2 104859648 488355839 191748096 5 Extended
/dev/sda4 488355840 488397167 20664 ef EFI (FAT-12/16/32)
/dev/sda5 104861696 209719295 52428800 8e Linux LVM
/dev/sda6 209721344 314578943 52428800 8e Linux LVM
root@darkelf:~# partprobe
Backtrace has 13 calls on stack:
13: /usr/lib/libparted.so.0(ped_assert+0x28) [0xb7716bb3]
12: /usr/lib/libparted.so.0(+0x4ab04) [0xb7755b04]
11: /usr/lib/libparted.so.0(+0x4af0b) [0xb7755f0b]
10: /usr/lib/libparted.so.0(+0x4e79d) [0xb775979d]
9: /usr/lib/libparted.so.0(+0x11dc3) [0xb771cdc3]
8: /usr/lib/libparted.so.0(ped_disk_add_partition+0x15f) [0xb771f5ae]
7: /usr/lib/libparted.so.0(+0x4b7c9) [0xb77567c9]
6: /usr/lib/libparted.so.0(+0x4b9eb) [0xb77569eb]
5: /usr/lib/libparted.so.0(ped_disk_new+0xd2) [0xb771b8f2]
4: partprobe() [0x8048ceb]
3: partprobe(main+0x1be) [0x8048fbf]
2: /lib/libc.so.6(__libc_start_main+0xe6) [0xb74fedb6]
1: partprobe() [0x8048b01]
A bug has been detected in GNU Parted. Refer to the web site of parted
http://www.gnu.org/software/parted/parted.html for more information of
what could be useful for bug submitting! Please email a bug report to
bug-parted@gnu.org containing at least the version (2.3) and the
following message: Assertion (head_size <= 63) at dos.c:661 in function
probe_partition_for_geom() failed.
Aborted
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