求助：重装win7后，在BCD中，Ubuntu的标识符会不会变化呢？

[飞啊飞啊飞啊]

Windows Boot Manager
--------------------
identifier {bootmgr}
device partition=C:
description Windows Boot Manager
locale zh-CN
inherit {globalsettings}
default {default}
resumeobject {7a5005be-3e61-11df-8c73-8d01ea1c1896}
displayorder {default}
{7a5005c3-3e61-11df-8c73-8d01ea1c1896}
toolsdisplayorder {memdiag}
timeout 10

Windows Boot Loader
-------------------
identifier {default}
device partition=C:
path \Windows\system32\winload.exe
description Windows 7
locale zh-CN
inherit {bootloadersettings}
recoverysequence {7a5005c0-3e61-11df-8c73-8d01ea1c1896}
recoveryenabled Yes
osdevice partition=C:
systemroot \Windows
resumeobject {7a5005be-3e61-11df-8c73-8d01ea1c1896}
nx OptIn

Real-mode Boot Sector
---------------------
identifier {7a5005c3-3e61-11df-8c73-8d01ea1c1896}
device partition=F:
path \ubuntu\winboot\wubildr.mbr
description Ubuntu



这个是我的BCD文件，我请请问下，如果重装win7后，Ubuntu的identifier会不会变化，我想通过恢复BCD，bootmgr以及以前的MBR来引导，可以不？win7在C盘，Ubuntu在F盘……本人菜。。。引导到现在没怎么看懂