I have Ubuntu and Windows installed together. I'm going to install Arch also along with them. For now, I what them to live there all together in my computer. I have the following:

gparted screenshot

I'd like to install Arch in the unallocated space between /dev/sda2 and /dev/sda3, but this space is not visible. Look:

$ lsblk
sda      8:0    0 931.5G  0 disk 
├─sda2   8:2    0  48.6G  0 part 
├─sda3   8:3    0     1K  0 part 
├─sda5   8:5    0   3.6G  0 part [SWAP]
└─sda6   8:6    0 745.4G  0 part /
sdb      8:16   1  14.6G  0 disk 
└─sdb1   8:17   1  14.6G  0 part 
sr0     11:0    1  1024M  0 rom 

$ sudo fdisk -l

Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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: 0x000a1bc4

   Device Boot      Start         End      Blocks   Id  System
/dev/sda2   *        2048   101832703    50915328    7  HPFS/NTFS/exFAT
/dev/sda3       382826494  1953523711   785348609    5  Extended
Partition 3 does not start on physical sector boundary.
/dev/sda5      1946028032  1953523711     3747840   82  Linux swap / Solaris
/dev/sda6       382834688  1946025983   781595648   83  Linux

So what should I do to make it visible and be able to install there Arch?


Why would you want to see unallocated space with partitions? You can see that between /dev/sda2 and /dev/sda3 is a gap (look at fdisk, end sector of sda2 and start of sda3).

You can always create the Arch partition under GParted in Ubuntu. If you don't want to use Gparted, you can use fdisk:

fdisk /dev/sda
| improve this answer | |
  • I'm afraid I could delete my files at my current ubuntu partition. – アレックス Apr 28 '14 at 5:46
  • You can always create the Arch partition under GParted in Ubuntu - how exactly? which file system should it be in? – アレックス Apr 28 '14 at 5:47
  • @Alex pick one. this is what Arch is about; you get to make your system exactly as you see fit. if you really want you could even just format it as anything and then overwrite it later. with all due respect, if you can't figure out how to solve this problem given the information people have given so far, you may want to consider another distribution. – strugee Apr 28 '14 at 7:27
  • @Alex natural choise is ext4 but you can consider something else, for example ext2 or btrfs. – enedil Apr 28 '14 at 7:50
  • thanks, but I'm asking about the exact steps. And also, should I create 2 partitions: one in ext2 for /boot and one in ext4 for the rest of the system? I'm on x64 computer. – アレックス Apr 28 '14 at 9:48

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