View Full Version : [xubuntu] Large disk installation issues with 12.04.3

September 13th, 2013, 09:54 AM
Installed Xubuntu 12.04.3 alongside Windows XP SP3 on a 500GB disk, not knowing beforehand of the issues relating to the 4096 byte blocks vs the 512 byte blocks in Windows and fdisk reported that all the drives were "misaligned". I returned to Windows and used the MiniTool Partition Wizard to correct (align) the drives (which meant I had to reinstall Xubuntu.) Now fdisk -l reports the following below. MiniTool indicated that all drives were properly aligned but it's not so according to fdisk. Should I be concerned about Partition 3? I don't even know what "W95 Ext'd (LBA)" means since the drive is NTFS.

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 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: 0xffb5ffb5

Device Boot Start End Blocks Id System
/dev/sda1 * 2048 122879999 61438976 7 HPFS/NTFS/exFAT
/dev/sda2 122882048 276475903 76796928 7 HPFS/NTFS/exFAT
/dev/sda3 276479998 976766975 350143489 f W95 Ext'd (LBA)
Partition 3 does not start on physical sector boundary.
/dev/sda5 276480000 404475903 63997952 7 HPFS/NTFS/exFAT
/dev/sda6 404477952 532471807 63996928 7 HPFS/NTFS/exFAT
/dev/sda7 532473856 735369215 101447680 7 HPFS/NTFS/exFAT
/dev/sda8 943970304 976766975 16398336 82 Linux swap / Solaris
/dev/sda9 735371264 943962111 104295424 83 Linux

Partition table entries are not in disk order

September 13th, 2013, 10:11 AM
W95 Ext'd (LBA) could be some boot partition or recovery. this is i think FAT32 file format.

September 13th, 2013, 12:13 PM
"Partition 3 does not start on physical sector boundary." is a relic of times long gone when it did matter about alignment of partitions to sectors.

I am pretty certain you can ignore that error. See post 2 of http://forums.linuxmint.com/viewtopic.php?f=190&t=102102&p=579571#p579424

It would be interesting to see what parted has to say from
sudo parted -l and also gdisk
sudo gdisk /dev/sdathe latter of which you will need to install.

I think the W95 Ext'd (LBA) is just a fat32 partition of the type Windows 95 used, though you say it is NTFS; are you sure about that?