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bobbydavid/1_create_extended_partition

Last active July 22, 2019 19:58
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How I moved my home directory to its own partition
Raw
copy_files
# time rsync -aXS --exclude='/*/.gvfs' /home/. /mnt/home/.
Raw
create_extended_partition
$ sudo su
# fdisk /dev/sda
Command (m for help): p
Disk /dev/sda: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xff3231fe
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT
/dev/sda2 206848 419432447 209612800 7 HPFS/NTFS/exFAT
/dev/sda3 419441148 833934147 207246500 7 HPFS/NTFS/exFAT
Command (m for help): n
Partition type:
p primary (3 primary, 0 extended, 1 free)
e extended
Select (default e): e
Selected partition 4
First sector (419432448-3907029167, default 419432448):
Using default value 419432448
Last sector, +sectors or +size{K,M,G} (419432448-419441147, default 419441147):
Using default value 419441147
Command (m for help): p
Disk /dev/sda: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xff3231fe
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT
/dev/sda2 206848 419432447 209612800 7 HPFS/NTFS/exFAT
/dev/sda3 419441148 833934147 207246500 7 HPFS/NTFS/exFAT
/dev/sda4 833935360 3907028991 1536546816 5 Extended
Partition table entries are not in disk order
Raw
create_logical_partition
Command (m for help): n
All primary partitions are in use
Adding logical partition 5
First sector (833935360-3907028991, default 833935360): 2147483647
Last sector, +sectors or +size{K,M,G} (419434496-419441147, default 419441147):
Using default value 419441147
Command (m for help): p
Disk /dev/sda: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xff3231fe
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT
/dev/sda2 206848 419432447 209612800 7 HPFS/NTFS/exFAT
/dev/sda3 419441148 833934147 207246500 7 HPFS/NTFS/exFAT
/dev/sda4 833935360 3907028991 1536546816 5 Extended
/dev/sda5 2147483647 3907028991 879772672+ 83 Linux
Partition table entries are not in disk order
Raw
mount_partition
# blkid
/dev/loop0: UUID="77bbe3db-8b03-4b7f-afba-cf5b1176f369" TYPE="ext4"
/dev/sda1: LABEL="System Reserved" UUID="B416B99416B957D6" TYPE="ntfs"
/dev/sda2: UUID="BAD6C1F7D6C1B3C3" TYPE="ntfs"
/dev/sda3: UUID="DC70F9F470F9D56C" TYPE="ntfs"
/dev/sda5: UUID="695279c9-4800-41d7-bd1f-f32d324c617f" TYPE="ext4"
# echo 'UUID=695279c9-4800-41d7-bd1f-f32d324c617f /mnt/home ext4 nodev,nosuid 0 2' >>/etc/fstab
# mkdir /mnt/home
# mount /mnt/home
Raw
move_partition
# umount /mnt/home
# vim /etc/fstab # change /mnt/home to /home in fstab. save.
# mv /home /home_old
# mount /home
Raw
write_partition_table
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
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