1. lubuntu@lubuntu:~$ sudo fdisk /dev/sda
  2. Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
  3. Building a new DOS disklabel with disk identifier 0x8a75eca1.
  4. Changes will remain in memory only, until you decide to write them.
  5. After that, of course, the previous content won't be recoverable.
  7. Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
  9. Command (m for help): w
  10. The partition table has been altered!
  12. Calling ioctl() to re-read partition table.
  13. Syncing disks.
  14. lubuntu@lubuntu:~$ sudo fdisk /dev/sda
  15. Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
  16. Building a new DOS disklabel with disk identifier 0xb9107636.
  17. Changes will remain in memory only, until you decide to write them.
  18. After that, of course, the previous content won't be recoverable.
  20. Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
  22. Command (m for help): q
  24. lubuntu@lubuntu:~$ sudo fdisk /dev/sda
  25. Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
  26. Building a new DOS disklabel with disk identifier 0x0cd406b1.
  27. Changes will remain in memory only, until you decide to write them.
  28. After that, of course, the previous content won't be recoverable.
  30. Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
  32. Command (m for help): w
  33. The partition table has been altered!
  35. Calling ioctl() to re-read partition table.
  36. Syncing disks.
  37. lubuntu@lubuntu:~$ sudo fdisk /dev/sda n
  38. Usage:
  39. fdisk [options] <disk> change partition table
  40. fdisk [options] -l <disk> list partition table(s)
  41. fdisk -s <partition> give partition size(s) in blocks
  43. Options:
  44. -b <size> sector size (512, 1024, 2048 or 4096)
  45. -c[=<mode>] compatible mode: 'dos' or 'nondos' (default)
  46. -h print this help text
  47. -u[=<unit>] display units: 'cylinders' or 'sectors' (default)
  48. -v print program version
  49. -C <number> specify the number of cylinders
  50. -H <number> specify the number of heads
  51. -S <number> specify the number of sectors per track
  53. lubuntu@lubuntu:~$ sudo fdisk /dev/sda w
  54. Usage:
  55. fdisk [options] <disk> change partition table
  56. fdisk [options] -l <disk> list partition table(s)
  57. fdisk -s <partition> give partition size(s) in blocks
  59. Options:
  60. -b <size> sector size (512, 1024, 2048 or 4096)
  61. -c[=<mode>] compatible mode: 'dos' or 'nondos' (default)
  62. -h print this help text
  63. -u[=<unit>] display units: 'cylinders' or 'sectors' (default)
  64. -v print program version
  65. -C <number> specify the number of cylinders
  66. -H <number> specify the number of heads
  67. -S <number> specify the number of sectors per track
  69. lubuntu@lubuntu:~$ sudo mkfs.vfat /dev/sda
  70. mkfs.fat 3.0.26 (2014-03-07)
  71. mkfs.vfat: Device partition expected, not making filesystem on entire device '/dev/sda' (use -I to override)
  72. lubuntu@lubuntu:~$ sudo fdisk -b /dev/sda
  73. Usage:
  74. fdisk [options] <disk> change partition table
  75. fdisk [options] -l <disk> list partition table(s)
  76. fdisk -s <partition> give partition size(s) in blocks
  78. Options:
  79. -b <size> sector size (512, 1024, 2048 or 4096)
  80. -c[=<mode>] compatible mode: 'dos' or 'nondos' (default)
  81. -h print this help text
  82. -u[=<unit>] display units: 'cylinders' or 'sectors' (default)
  83. -v print program version
  84. -C <number> specify the number of cylinders
  85. -H <number> specify the number of heads
  86. -S <number> specify the number of sectors per track
  88. lubuntu@lubuntu:~$ sudo fdisk -c /dev/sda
  89. Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
  90. Building a new DOS disklabel with disk identifier 0x7d306087.
  91. Changes will remain in memory only, until you decide to write them.
  92. After that, of course, the previous content won't be recoverable.
  94. Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
  96. Command (m for help): w
  97. The partition table has been altered!
  99. Calling ioctl() to re-read partition table.
  100. Syncing disks.
  101. lubuntu@lubuntu:~$ sudo cfdisk /dev/sda
  103. lubuntu@lubuntu:~$ lsblk
  104. NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
  105. sda 8:0 0 279,5G 0 disk
  106. sr0 11:0 1 598,2M 0 rom /cdrom
  107. loop0 7:0 0 542,3M 1 loop /rofs
  108. zram0 251:0 0 247,1M 0 disk [SWAP]

"no volume" found on hdd