When booting to Windows PE, the computer cannot access the F drive, which should be mapped to the eXpress share on Deployment Solution.
When booting into Windows PE with a hard drives that have at least three partitions and a CD-ROM drive (or indeed any combination of local drives that total four or greater), the mapping is assigned as follows:
- Partition 1 = C
- Partition 2 = D
- Partition 3 = E
- CD-ROM = F
If you have left your PXE configuration as default, then PE will attempt to map the F drive to the DS eXpress share. This will be unsuccessful as the share is already in use by a local drive.
There are two options to resolve this issue:
- When creating the PXE boot menu option, use a drive letter in the alphabet other than F for mapping to the eXpress share. This should work assuming you have no jobs that explicitly use the F drive.
- Add the following to mapdrv.bat in your PE boot files (this is within the ISO created for the corresponding bootmenu option and can be opened with Daemon Tools and re-created with EasyISO. Both of these tools are free.)
Set VolNum=No Drive Mapping Found
@for /f "tokens=2" %%x in ('echo list volume ^| diskpart ^| findstr /c:" F "') do If NOT %%x=="" Set volNum=%%x
If NOT "%volNum%"=="No Drive Mappping Found" Diskpart /s diskpartF.txt
Where F (highlighed in red) is the drive you are checking is in use.
Then in the same folder add a file called "diskpartF.txt'", which should contain:
Select Volume %volNum%
assign letter = s
Where s (in red) is the letter the F will be reassigned to. Both the searching drive and the reassigned drive letters can be changed as desired.
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