如何使用sgdisk清除/删除已找到分区的内容

Question

我有一个需求，如果我发现我的分区使用skids -p /dev/sdc，那么我需要清除特定的分区内容。如何使用sgdisk命令做到这一点？

假设我找到了Client_Image分区，需要清除该分区的内容

# 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

Answer 1

来自sgdisk命令页：

-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.

因此，删除分区Client_Image (数字3)

sudo sgdisk -d 3 -s /dev/sdc

将删除分区3，然后排序修改的分区表。