Livecd doesn't work with disks with many partitions

Livecd doesn't work if a hard disk has more than one partition.

During boot, under the list of the loaded drivers I get the error message "Unable to verify a FAT/NTFS volume".

The debug log is the following:
(dll\ntdll\ldr\utils.c:2030) Failed to create or open dll section of 'ufat.dll' (Status c0000135)
(base\system\autochk\autochk.c:290) LoadProvider() failed
(dll\ntdll\ldr\utils.c:2030) Failed to create or open dll section of 'ufat.dll' (Status c0000135)
(base\system\autochk\autochk.c:290) LoadProvider() failed
(./base/system/smss/initwkdll.c:212) NtOpenFile failed (Status c000003a)
(./base/system/smss/init.c:68) SM: InitSessionManager: failed to preload system DLLs (Status=c000003a)
(drivers\filesystems\cdfs\fsctl.c:528) CDFS: IRP_MN_USER_FS_REQUEST
(drivers\filesystems\cdfs\fsctl.c:528) CDFS: IRP_MN_USER_FS_REQUEST
(drivers\filesystems\cdfs\fsctl.c:528) CDFS: IRP_MN_USER_FS_REQUEST
(drivers\filesystems\cdfs\fsctl.c:528) CDFS: IRP_MN_USER_FS_REQUEST
(lib\rtl\process.c:44) Failed to read image file from disk
(lib\rtl\process.c:207) Could not map process image
(./base/system/smss/smapiexec.c:141) SM: SmCreateUserProcess: Running "??\E:\reactos\system32\csrss.exe" failed (Status=0xc000003a)
(./base/system/smss/initss.c:131) SM: SmpLoadRequiredSubsystems failed to run 'Windows' program (Status=0xc000003a)
(./base/system/smss/initss.c:174) SM: SmLoadSubsystems SmpLoadRequiredSubsystems failed Status=c000003a
(./base/system/smss/init.c:68) SM: InitSessionManager: failed to load subsystems (Status=c000003a)

The problem is that system root is wrongly set to E instead of F. This is why smss.exe fails to execute csrss.exe .