diskpart to deal with driver letter changed after reboot in Virtual Machine
Drive letter will changed after roboot VM managed by hyper-v in win server 2k8 in when disk is not fixed size.
Try parse diskpart output info genereated by detail disk as following to build a script to change drive letter.
DISKPART>
DISKPART> List disk
Disk ### Status Size Free Dyn Gpt
-------- ---------- ------- ------- --- ---
Disk 0 Online 127 GB 0 B
Disk 1 Online 127 GB 0 B
Disk 2 Online 100 GB 0 B
Disk 3 Online 127 GB 0 B
DISKPART> list volume
Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
Volume 0 J Zjian NTFS Partition 127 GB Healthy
Volume 1 K Hru NTFS Partition 127 GB Healthy
Volume 2 C System NTFS Partition 100 GB Healthy System
Volume 3 I L26 NTFS Partition 127 GB Healthy
DISKPART> select disk 1
Disk 1 is now the selected disk.
DISKPART> detail disk
Virtual HD ATA Device
Disk ID: 28340798
Type : ATA
Bus : 1
Target : 1
LUN ID : 0
Read-only : No
Boot Disk : No
Pagefile Disk : No
Hibernation File Disk : No
Crashdump Disk : No
Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
Volume 1 K Hru NTFS Partition 127 GB Healthy
DISKPART>
script for diskpart:
compare disk label and pick up the disk and volume value.
SELECT DISK 2 <<replace by result parsed
SELECT VOLUME 1 <<replace by result parsed
ASSIGN LETTER=D
SELECT DISK 3
SELECT VOLUME 2
ASSIGN LETTER=E
SELECT DISK 1
SELECT VOLUME 3
ASSIGN LETTER=F
http://support.microsoft.com/kb/300415/zh-cn
http://support.microsoft.com/default.aspx?scid=kb;zh-cn;325590
