Disk utility tells that there are bad sectors on the new hard drive. I had the same issue before and I was about to send it back to get it replaced. I wrote random data to the drive and then checked once more to make sure it had bad sectors. This time Disk utility came back saying that the drive is fine, no bad sectors.
So I reinstalled Debian and Win 7 with the same configuration. After installing again I checked the drive and Disk utility reported no bad sectors. I have been using it for over a month and now I have the same problem. Disk utility reports that there are bad sectors. I am not sure what's going on. How can I conclusively confirm that this disk has bad sectors? fdisk output Disk /dev/sda: 750.2 GB, 750156374016 bytes 255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 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: 0x00002307 Device Boot Start End Blocks Id System /dev/sda1 * 2048 104859647 52428800 7 HPFS/NTFS /dev/sda2 104859648 106956799 1048576 83 Linux /dev/sda3 106956800 1155532799 524288000 83 Linux - LUKS/LVM /dev/sda4 1155534846 1465149167 154807161 5 Extended Partition 4 does not start on physical sector boundary. /dev/sda5 1155534848 1465149167 154807160 7 HPFS/NTFS here's the output of # smartctl -l selftest /dev/sda === START OF READ SMART DATA SECTION === SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Short offline Completed without error 00% 102 - # 2 Short offline Completed without error 00% 100 - # 3 Extended offline Completed without error 00% 83 - # 4 Short offline Completed without error 00% 81 - # 5 Short offline Completed: read failure 90% 70 229181752 # 6 Short offline Completed: read failure 90% 67 229181752 # 7 Short offline Completed: read failure 90% 67 229181752 -- Kind regards, Yudi