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I have a requirement, if I found my partition using skids -p /dev/sdc then I need to clear the particular partition content. How can I do that using sgdisk command?

Suppose I found the Client_Image partition and need to clear the content of that

# sudo sgdisk -p /dev/sdc
Disk /dev/sdc: 15654912 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 8C5B1844-CEAE-2370-00BD-D0E47E3C9900
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15654878
Partitions will be aligned on 2-sector boundaries
Total free space is 0 sectors (0 bytes)

Number  Start (sector)    End (sector)  Size       Code  Name
   1              34         2097151   1024.0 MiB  0700  Linux data
   2         2097152         8388607   3.0 GiB     0700  Shared FAT
   3         8388608        15654878   3.5 GiB     A503  Client_Image
Liso
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Shekhar SP
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1 Answers1

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From sgdisk manpage:

   -d, --delete=partnum
          Delete a partition. This action deletes the entry from the partition table but does
          not disturb the data within the sectors originally allocated to  the  partition  on
          the  disk.  If  a  corresponding  hybrid MBR partition exists, gdisk deletes it, as
          well, and expands any adjacent 0xEE (EFI GPT) MBR protective partition to fill  the
          new free space.

Therefore, to delete partition Client_Image (number 3)

sudo sgdisk -d 3 -s /dev/sdc

Will delete partition 3, then sorts modified partition table.

Liso
  • 15,677