设备标识:
Precision工作站
PowerEdge服务器
PowerVault存储
开启/关闭 RAID 卡:
F2 --> System setup --> System BIOS --> Integrated Devices --> Integrated RAID Contronller
Enable
设置引导模式:
F2 --> System setup --> System BIOS --> Boot settings --> Boot Mode
BIOS Boot Manager
UEFI Boot Manager
开机快捷键
F11Boot Manager
F12PXE Boot
F2System Setup
System BIOS
iDRAC Settings
Device settings
当一个磁盘(物理或者虚拟)大于2T时
# fdsik /dev/sda
WARNING: The size of this disk is 20.0 TB.
DOS partition table format can not be used on drivers for volumes larger than (2199023255040 bytes) for 512-byte sectors.
Use parted(1) and GUID partition table format (GPT).
WARNING: DOS-compatible mode is deprecated. It’s strongly recommended to switch off the mode (command ‘c’) and
change display units to sectors (command ‘u’).
Command (m for help):
Command (m for help): c
DOS Compatibility flag is not set
Command (m for help): u
Changing display/entry units to sectors
Command (m for help): w
最终,无法使用;用fdisk是分不出GPT表
# parted -l
# parted
Using /dev/sda
(parted) select /dev/sdb
Using /dev/sdb
# parted /dev/sda
(parted) p(打印分区表)
(parted) print(同上)
(parted) help
(parted) mklabel
New disk label type? gpt(可输入:bsd dvh gpt loop mac msdos pc98 sun)
(parted) mktable(同上)
New disk label type? msdos
(parted) mkpart(改成gpt)
Partition name? []? one
File system type? [ext2]? ext4
Start? 0
End? -1(整个磁盘就给了一个分区;会报错,忽略后,自己会调整)
# parted /dev/sda
(parted) p
(parted) rm 1
(parted) mkpart
Partition name? []? two
File system type? [ext2]? ext4
Start? 5g
End? 100g
# parted -l
……
Number Start End Size File system Name Floags
1 5000MB 100GB 95.0GB ext4 two
GPT
GPT,全局唯一标识磁盘分区表 (GUID Partition Table),GUID,全局唯一标识符 (Globally Unique Identifier) 。
GUID 分区表 (GPT) 是作为 Extensible Firmware Interface (EFI) 计划的一部分引入的。当然,你也可以在 BIOS 的
PC中使用 GPT 分区,虽然 GPT 来自以 EFI 计划,但并不依赖于 EFI。
在 GPT 规范里对分区的数量几乎是没有限制的,大家在网上可以查到的128个实际上是 Windows 系统 (支持
GPT 的 Windows) 做出的限制,Linux下没这个限制。支持到18EB(1EB=1024TB)。