[anaconda root@861767 ~]# lsblk /dev/sda
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 465.8G 0 disk
├─sda1 8:1 0 512M 0 part
└─sda2 8:2 0 465.3G 0 part
├─sys-root 253:2 0 10G 0 lvm
├─sys-var 253:3 0 4G 0 lvm
├─sys-tmp 253:4 0 4G 0 lvm
└─sys-home 253:5 0 447.3G 0 lvm
[anaconda root@861767 ~]# gdisk -l /dev/sda
GPT fdisk (gdisk) version 0.8.6
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 976773168 sectors, 465.8 GiB
Logical sector size: 512 bytes
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 976773134
Partitions will be aligned on 2048-sector boundaries
Total free space is 2029 sectors (1014.5 KiB)
Number Start (sector) End (sector) Size Code Name
1 2048 1050623 512.0 MiB 0700
2 1050624 976773119 465.3 GiB 8E00
[anaconda root@861767 ~]# parted -s /dev/sda unit GB print
Model: ATA GB0500EAFYL (scsi)
Disk /dev/sda: 500GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 0.00GB 0.54GB 0.54GB ext4
2 0.54GB 500GB 500GB lvm
[anaconda root@861767 ~]#
lsblk 和 gdisk 报告磁盘大小为 465.5G parted 说大小为 500G
哪一个是真实的?为什么会有不一致?
答案1
磁盘制造商宣传的磁盘大小都是 1000 的倍数。也就是说,“KB”是 1000,不是1024,正如软件人员所习惯的。
对于您来说,似乎lsblk
和gdisk
正在使用 1024 值,但parted
正在使用 1000。
465.5 * 1024 * 1024 * 1024 == 499,826,819,072
现在,划分:
499,826,819,072 / (1000 * 1000 * 1000) == 499.826
映射到500
正在parted
报告的
请注意,lsblk
并gdisk
使用GiB
,但您给出了GB
选项parted
。尝试parted
使用GiB
选项