Disk /dev/sda: 750.1 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000c9ad8

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1       26109   209720511   83  Linux
/dev/sda2           26110       26241     1060290   82  Linux swap / Solaris
/dev/sda3           26242       91201   521791200   83  Linux

Command (m for help): x

Expert command (m for help): p

Disk /dev/sda: 255 heads, 63 sectors, 91201 cylinders

Nr AF  Hd Sec  Cyl  Hd Sec  Cyl     Start      Size ID
 1 80   1   1    0 254  63 1023         63  419441022 83
 2 00 254  63 1023 254  63 1023  419441085    2120580 82
 3 00 254  63 1023 254  63 1023  421561665 1043582400 83
 4 00   0   0    0   0   0    0          0          0 00
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Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: ATA ST3750330AS (scsi)
Disk /dev/sda: 750GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End    Size    Type     File system  Flags
 1      32.3kB  215GB  215GB   primary  ext3         boot
 2      215GB   216GB  1086MB  primary  linux-swap
 3      216GB   750GB  534GB   primary  ext2
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Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda1            208362020  20598464 177277532  11% /
/dev/sda3            518412936 283261188 209062188  58% /z
/dev/sda3 on /z type ext2 (ro)
root@retro:~# umount /z
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(parted) resize 3 216G 720G
Error: File system has an incompatible feature enabled.  Compatible features are has_journal,
dir_index, filetype, sparse_super and large_file.  Use tune2fs or debugfs to remove features.