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I'm trying to install Debian on my HDD booting from USB flash drive but when I reach step called Disk partitioning I can see only my flash drive (/dev/sda automatically mounted as /cdrom). When I switch to console (ALT+F2) and list /dev, there is no /dev/sdb.

mount result:

~ # mount
rootfs on / type rootfs (rw)
none on /proc type proc (rw,relatime)
none on /sys type sysfs (rw,relatime)
tmpfs on /dev type tmpfs (rw,relatime,mode=755)
none on /dev/pts type devpts (rw,relatime,mode=600,ptmxmode=000)
/dev/sda1 on /cdrom type iso9660 (ro,relatime)

fdisk -l shows only flash disk /dev/sda.

How can I fix it?

ps 1. I'm not able to install Debian from CD/DVD because of this problem.
ps 2. My HDD is Seagate ST1000DM003-9YN162.
ps 3. Yesterday I installed Windows 7 on this HDD, so it's not hardware nor connection problem.

share|improve this question
What SATA/RAID controller are you connecting the HDD to? Maybe the required drivers are in the non-free repositories. – Oliver Salzburg Jul 21 '12 at 13:38
I have GIGABYTE Z77-D3H motherboard (motherboard's specification). – patryk.beza Jul 21 '12 at 16:40

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