10.04.4 LTS: Formatting sdc3 (WDC WD20EARX-00P) to a full-disk ext4 partition via gparted:
mkfs.ext4 -j -O extent -L '' /dev/sdc1 dev/sdc1 alignment is offset by 512 bytes. This may result in very poor performance, (re)-partitioning suggested. Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=1 blocks, Stripe width=0 blocks 122101760 inodes, 488378000 blocks 24418900 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=4294967296 14905 block groups 32768 blocks per group, 32768 fragments per group 8192 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968, 102400000, 214990848 Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 33 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. Oookay, soo ... it is not obvious to me how to fix this. I'll try resizing the partition with the first 1M empty, as suggested in that IBM article. I trying unselecting alignment to sector but I got errors all over the place. ** Attachment added: "GParted reports misalignment." https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/879387/+attachment/2854193/+files/gparted_details.htm -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/879387 Title: Partitions misaligned on advanced format drive WD20EARX To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/879387/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs