{"id":158,"date":"2013-12-07T10:40:54","date_gmt":"2013-12-07T02:40:54","guid":{"rendered":"http:\/\/www.datarelab.com\/blog\/?p=158"},"modified":"2013-12-07T10:40:54","modified_gmt":"2013-12-07T02:40:54","slug":"%e7%a7%bb%e9%99%a4%20bcd%20%e4%b8%8e%20nvram%20%e4%b8%ad%e9%87%8d%e5%a4%8d%e7%9a%84%e5%9b%ba%e4%bb%b6%e5%af%b9%e8%b1%a1","status":"publish","type":"post","link":"https:\/\/www.datarelab.com\/blog\/Technical_literature\/158.html","title":{"rendered":"\u79fb\u9664 BCD \u4e0e NVRAM \u4e2d\u91cd\u590d\u7684\u56fa\u4ef6\u5bf9\u8c61"},"content":{"rendered":"

\n\t\u5728\u6709\u4e9b\u4f7f\u7528\u7edf\u4e00\u53ef\u6269\u5c55\u56fa\u4ef6\u63a5\u53e3 (UEFI) \u7684\u8ba1\u7b97\u673a\u4e0a\uff0c\u56fa\u4ef6\u4f1a\u5728\u8ba1\u7b97\u673a\u5f00\u673a\u65f6\u4e3a\u672c\u673a\u88c5\u7f6e (\u5982 CD-ROM \u6216\u786c\u76d8) \u5efa\u7acb\u9759\u6001\u968f\u673a\u5b58\u53d6\u5185\u5b58 (NVRAM) \u9879\u76ee\u3002Bcdedit \u4f1a\u540c\u6b65\u5904\u7406 NVRAM \u4e2d\u7684\u56fa\u4ef6\u547d\u540d\u7a7a\u95f4\u5bf9\u8c61\u4e0e\u7cfb\u7edf\u5f00\u673a\u8bbe\u5b9a\u6570\u636e (BCD)\u3002Bcdedit \u4f1a\u5728\u60a8\u6267\u884c bcdedit \/set \u6216 \/enum \u547d\u4ee4\u65f6\uff0c\u5f00\u542f\u7cfb\u7edf BCD \u5b58\u653e\u533a\u3002bcdedit \u5f00\u542f BCD \u65f6\uff0c\u4f1a\u6bd4\u8f83 NVRAM \u4e2d\u7684\u9879\u76ee\u4e0e BCD \u4e2d\u7684\u9879\u76ee\u3002\u56fa\u4ef6\u5728 NVRAM \u4e2d\u5efa\u7acb\u7684\u9879\u76ee\u82e5\u672a\u5b58\u5728\u4e8e BCD \u4e2d\uff0c\u5373\u4f1a\u65b0\u589e\u81f3\u7cfb\u7edf BCD\u3002\u5f53 bcdedit \u5173\u95ed\u7cfb\u7edf BCD \u65f6\uff0cBCD \u4e2d\u4efb\u4f55\u4e0d\u5728 NVRAM \u5185\u7684\u5f00\u673a\u7ba1\u7406\u7a0b\u5e8f\u9879\u76ee\u7686\u4f1a\u65b0\u589e\u81f3 NVRAM \u4e2d\u3002bcdedit
\n\/import \u547d\u4ee4\u4f1a\u5c06\u7cfb\u7edf BCD \u4e2d\u7684\u6240\u6709\u56fa\u4ef6\u547d\u540d\u7a7a\u95f4\u5bf9\u8c61\u590d\u5236\u5230 NVRAM \u4e2d\u3002\n<\/p>\n

\n\t<\/o:p>\n<\/p>\n

\n\t\u82e5\u60a8\u6267\u884c\u591a\u9879 bcdedit \/import \u64cd\u4f5c\uff0cNVRAM \u5373\u53ef\u80fd\u5305\u542b\u7cfb\u7edf\u4e0a\u4e4b\u88c5\u7f6e (\u5982 CD ROM \u4e0e\u786c\u76d8) \u7684\u591a\u4e2a\u9879\u76ee\u3002\u591a\u9879 \/import \u64cd\u4f5c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u8bb8\u591a\u91cd\u590d\u9879\u76ee\u3002\u4e0b\u5217\u547d\u4ee4\u53ef\u7528\u4ee5\u5217\u4e3e BCD \u4e2d\u7684\u56fa\u4ef6\u547d\u540d\u7a7a\u95f4\u5bf9\u8c61\uff1a<\/o:p>\n<\/p>\n

\n\tBcdedit \/enum firmware<\/o:p>\n<\/p>\n

\n\t\u4e0b\u5217\u8303\u4f8b\u7c7b\u4f3c\u4e8e bcdedit \/enum \u56fa\u4ef6\u547d\u4ee4\u6240\u4ea7\u751f\u7684\u8f93\u51fa\uff1a<\/o:p>\n<\/p>\n

\n\t\u56fa\u4ef6\u5f00\u673a\u7ba1\u7406\u7a0b\u5e8f<\/o:p>\n<\/p>\n

\n\t---------------------<\/o:p>\n<\/p>\n

\n\tidentifier              {fwbootmgr}<\/o:p>\n<\/p>\n

\n\tdisplayorder            {bootmgr}<\/o:p>\n<\/p>\n

\n\t{93cee840-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\t{93cee841-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\t{93cee842-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\t{93cee844-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\t{93cee843-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\ttimeout                 2<\/o:p>\n<\/p>\n

\n\t <\/o:p>\n<\/p>\n

\n\tWindows \u5f00\u673a\u7ba1\u7406\u7a0b\u5e8f<\/o:p>\n<\/p>\n

\n\t--------------------<\/o:p>\n<\/p>\n

\n\tidentifier              {bootmgr}<\/o:p>\n<\/p>\n

\n\tdevice 
\n                partition=\\Device\\HarddiskVolume1<\/o:p>\n<\/p>\n

\n\tpath                   
\n\\EFI\\Microsoft\\Boot\\bootmgfw.efi<\/o:p>\n<\/p>\n

\n\tdescription             Windows Boot Manager<\/o:p>\n<\/p>\n

\n\tlocale                  en-US<\/o:p>\n<\/p>\n

\n\tinherit                 {globalsettings}<\/o:p>\n<\/p>\n

\n\tdefault                 {current}<\/o:p>\n<\/p>\n

\n\tdisplayorder            {current}<\/o:p>\n<\/p>\n

\n\ttoolsdisplayorder       {memdiag}<\/o:p>\n<\/p>\n

\n\ttimeout                 30<\/o:p>\n<\/p>\n

\n\t <\/o:p>\n<\/p>\n

\n\t\u56fa\u4ef6\u5e94\u7528\u7a0b\u5e8f (101fffff)<\/o:p>\n<\/p>\n

\n\t-------------------------------<\/o:p>\n<\/p>\n

\n\tidentifier             
\n{93cee840-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\tdescription             Primary Master CDROM<\/o:p>\n<\/p>\n

\n\t <\/o:p>\n<\/p>\n

\n\t\u56fa\u4ef6\u5e94\u7528\u7a0b\u5e8f (101fffff)<\/o:p>\n<\/p>\n

\n\t-------------------------------<\/o:p>\n<\/p>\n

\n\tidentifier             
\n{93cee841-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\tdescription             Harddisk 4<\/o:p>\n<\/p>\n

\n\t <\/o:p>\n<\/p>\n

\n\t\u56fa\u4ef6\u5e94\u7528\u7a0b\u5e8f (101fffff)<\/o:p>\n<\/p>\n

\n\t-------------------------------<\/o:p>\n<\/p>\n

\n\tidentifier             
\n{93cee842-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\tdescription             Internal EFI Shell<\/o:p>\n<\/p>\n

\n\t <\/o:p>\n<\/p>\n

\n\t\u56fa\u4ef6\u5e94\u7528\u7a0b\u5e8f (101fffff)<\/o:p>\n<\/p>\n

\n\t-------------------------------<\/o:p>\n<\/p>\n

\n\tidentifier             
\n{93cee843-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\tdescription             Floppy<\/o:p>\n<\/p>\n

\n\t <\/o:p>\n<\/p>\n

\n\t\u56fa\u4ef6\u5e94\u7528\u7a0b\u5e8f (101fffff)<\/o:p>\n<\/p>\n

\n\t-------------------------------<\/o:p>\n<\/p>\n

\n\tidentifier 
\n            {93cee844-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\tdescription             Acpi(PNP0A03,0)\/Pci(1F|1)\/Ata(Primary,Master)\/CDROM(Entry1)<\/o:p>\n<\/p>\n

\n\t\u82e5\u60a8\u91cd\u590d\u4f7f\u7528 bcdedit \/import\uff0cNVRAM \u4e0e\u7cfb\u7edf BCD \u4e2d\u5373\u53ef\u80fd\u4f1a\u6709\u591a\u4e2a\u56fa\u4ef6\u5bf9\u8c61\u3002\u82e5\u60a8\u5c06\u4e3b\u8ba1\u7b97\u673a\u4e2d\u7684 BCD \u5b58\u653e\u533a\u6c47\u5165\u5230\u76ee\u6807\u8ba1\u7b97\u673a\uff0c\u5219\u76f8\u540c\u7684\u88c5\u7f6e\u53ef\u80fd\u4f1a\u6709\u591a\u4e2a\u56fa\u4ef6\u9879\u76ee\u3002\u82e5\u6709\u591a\u4e2a\u56fa\u4ef6\u9879\u76ee\u5b58\u5728\uff0c\u60a8\u6240\u770b\u89c1\u7684 bcdedit \/enum \u56fa\u4ef6\u8f93\u51fa\u5c06\u5305\u542b\u7c7b\u4f3c\u4e0b\u5217\u8303\u4f8b\u6240\u793a\u7684\u56fa\u4ef6\u9879\u76ee\uff1a<\/o:p>\n<\/p>\n

\n\t\u56fa\u4ef6\u5f00\u673a\u7ba1\u7406\u7a0b\u5e8f<\/o:p>\n<\/p>\n

\n\t---------------------<\/o:p>\n<\/p>\n

\n\tidentifier              {fwbootmgr}<\/o:p>\n<\/p>\n

\n\tdisplayorder            {bootmgr}<\/o:p>\n<\/p>\n

\n\t{93cee840-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\t{93cee841-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\t{93cee842-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\t{93cee844-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\t{93cee843-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\t{8b87c5a0-f2f2-11db-9717-f87ee6ea6002}<\/o:p>\n<\/p>\n

\n\t{8b87c5a1-f2f2-11db-9717-f87ee6ea6002}<\/o:p>\n<\/p>\n

\n\t{8b87c5a2-f2f2-11db-9717-f87ee6ea6002}<\/o:p>\n<\/p>\n

\n\t{8b87c5a3-f2f2-11db-9717-f87ee6ea6002}<\/o:p>\n<\/p>\n

\n\t{8b87c5a4-f2f2-11db-9717-f87ee6ea6002}<\/o:p>\n<\/p>\n

\n\ttimeout                 2<\/o:p>\n<\/p>\n

\n\t\u6bcf\u4e2a\u88c5\u7f6e\u53ef\u80fd\u4f1a\u6709\u4e24\u4e2a\u6216\u66f4\u591a\u5177\u6709\u4e0d\u540c GUID \u7684\u9879\u76ee\u3002\u4f8b\u5982\uff0c\u4e3b\u670d\u52a1\u5668 CDROM \u53ef\u80fd\u5305\u542b\u591a\u4e2a\u9879\u76ee\uff1a<\/o:p>\n<\/p>\n

\n\t\u56fa\u4ef6\u5e94\u7528\u7a0b\u5e8f (101fffff)<\/o:p>\n<\/p>\n

\n\t-------------------------------<\/o:p>\n<\/p>\n

\n\tidentifier             
\n{93cee840-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\tdescription             Primary Master CDROM<\/o:p>\n<\/p>\n

\n\t <\/o:p>\n<\/p>\n

\n\t\u56fa\u4ef6\u5e94\u7528\u7a0b\u5e8f (101fffff)<\/o:p>\n<\/p>\n

\n\t-------------------------------<\/o:p>\n<\/p>\n

\n\tidentifier              {8b87c5a0-f2f2-11db-9717-f87ee6ea6002}<\/o:p>\n<\/p>\n

\n\tdescription             Primary Master CDROM<\/o:p>\n<\/p>\n

\n\t\u60a8\u53ef\u4ee5\u4f7f\u7528\u591a\u4e2a Bcdedit \u547d\u4ee4\uff0c\u5c06 NVRAM \u4e0e BCD \u7cfb\u7edf\u5b58\u653e\u533a\u4e2d\u7684\u591a\u4e2a\u6216\u91cd\u590d\u9879\u76ee\u79fb\u9664\u3002\u82e5\u8981\u5bf9\u60a8\u60f3\u8981\u79fb\u9664\u7684\u591a\u4e2a\u5bf9\u8c61\u9879\u76ee\u4f7f\u7528\u6b63\u786e\u7684\u5bf9\u8c61 GUID\uff0c\u5219\u53ef\u80fd\u5fc5\u987b\u624b\u52a8\u5efa\u7acb\u547d\u4ee4\u811a\u672c\u3002<\/o:p>\n<\/p>\n

\n\t\u79fb\u9664\u91cd\u590d\u9879\u76ee<\/o:p>\n<\/p>\n

\n\t1.      
\n\u4f7f\u7528\u4e0b\u5217 Bcdedit \u547d\u4ee4\u4e3a\u76ee\u524d\u7684\u7cfb\u7edf\u5b58\u653e\u533a\u50a8\u5b58\u590d\u672c\u3002<\/o:p>\n<\/p>\n

\n\tBcdedit \/export savebcd<\/o:p>\n<\/p>\n

\n\t\u60a8\u4e5f\u53ef\u4ee5\u4e8e\u65e5\u540e\u4f7f\u7528\u6b64\u6863\u6848\u8fdb\u884c\u590d\u539f\u3002<\/o:p>\n<\/p>\n

\n\t2.      
\n\u590d\u5236\u8981\u7528\u4e8e Bcdedit \u5220\u9664\u64cd\u4f5c\u7684 SaveBCD \u6863\u6848\u3002<\/o:p>\n<\/p>\n

\n\tCopy savebcd newbcd<\/o:p>\n<\/p>\n

\n\t3.      
\n\u5217\u4e3e\u7cfb\u7edf BCD \u5b58\u653e\u533a\u4e2d\u7684\u56fa\u4ef6\u547d\u540d\u7a7a\u95f4\u5bf9\u8c61\uff0c\u5e76\u5c06\u8f93\u51fa\u7ed3\u679c\u50a8\u5b58\u5230\u6587\u672c\u6587\u4ef6\u4e2d\uff1a<\/o:p>\n<\/p>\n

\n\tBcdedit \/enum firmware > enumfw.txt<\/o:p>\n<\/p>\n

\n\t4.      
\n\u4f7f\u7528 Notepad.exe \u5f00\u542f Enumfw.txt\uff0c\u68c0\u89c6\u8981\u5220\u9664\u4e4b\u91cd\u590d GUID \u9879\u76ee\u7684\u5217\u8868\u3002\u68c0\u89c6\u8ba1\u7b97\u673a\u4e0a\u7684 GUID \u9879\u76ee\u5217\u8868\u3002<\/o:p>\n<\/p>\n

\n\t5.      
\n\u4f7f\u7528 [\u8bb0\u4e8b\u672c] \u5efa\u7acb\u65b0\u7684\u547d\u4ee4\u6863\u6848\u3002\u5c06\u6863\u6848\u50a8\u5b58\u4e3a RemoveDups.cmd\u3002<\/o:p>\n<\/p>\n

\n\t6.      
\n\u5728 RemoveDups.cmd \u6863\u6848\u4e2d\u65b0\u589e\u547d\u4ee4\u884c\uff0c\u4ee5\u5220\u9664\u4f9d\u7167 [\u56fa\u4ef6\u5f00\u673a\u7ba1\u7406\u7a0b\u5e8f] \u663e\u793a\u987a\u5e8f\u5217\u51fa\u7684\u91cd\u590d\u56fa\u4ef6 GUID\uff1a<\/o:p>\n<\/p>\n

\n\tBcdedit \/store newbcd \/delete
\n{93cee840-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\t\u5bf9\u6bcf\u4e2a\u8981\u79fb\u9664\u7684 GUID \u91cd\u590d\u6b64\u547d\u4ee4\u3002\u5c31\u4e0a\u9762\u7684\u8303\u4f8b\u800c\u8a00\uff0c\u5728 RemoveDups.cmd \u4e2d\u52a0\u5165\u4e0b\u5217\u547d\u4ee4\uff1a<\/o:p>\n<\/p>\n

\n\tBcdedit \/store newbcd \/delete
\n{93cee841-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\tBcdedit \/store newbcd \/delete
\n{93cee842-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\tBcdedit \/store newbcd \/delete
\n{93cee843-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\tBcdedit \/store newbcd \/delete
\n{93cee844-f524-11db-af62-aa767141e6b3}<\/o:p>\n<\/p>\n

\n\tBcdedit \/store newbcd \/delete
\n{8b87c5a1-f2f2-11db-9717-f87ee6ea6002}<\/o:p>\n<\/p>\n

\n\tBcdedit \/store newbcd \/delete {8b87c5a2-f2f2-11db-9717-f87ee6ea6002}<\/o:p>\n<\/p>\n

\n\tBcdedit \/store newbcd \/delete
\n{8b87c5a3-f2f2-11db-9717-f87ee6ea6002}<\/o:p>\n<\/p>\n

\n\tBcdedit \/store newbcd \/delete
\n{8b87c5a4-f2f2-11db-9717-f87ee6ea6002}<\/o:p>\n<\/p>\n

\n\t\u5728 EFI \u56fa\u4ef6\u5df2\u521d\u59cb\u5316\u5176\u672c\u673a\u88c5\u7f6e\u4e4b NVRAM \u9879\u76ee\u6807\u8ba1\u7b97\u673a\u4e0a\uff0c\u60a8\u5373\u53ef\u5728\u5fc5\u8981\u65f6\u5220\u9664\u6240\u6709 GUID \u9879\u76ee\u3002\u8bf7\u4e0d\u8981\u5220\u9664 {bootmgr} \u7684\u9879\u76ee<\/o:p>\n<\/p>\n

\n\t7.      
\n\u4f7f\u7528 \/clean \u9009\u9879\u5728\u6c47\u5165\u64cd\u4f5c\u7684\u8fc7\u7a0b\u4e2d\u79fb\u9664\u6240\u6709 NVRAM \u9879\u76ee\uff0c\u5e76\u5c06\u6700\u7ec8\u547d\u4ee4\u65b0\u589e\u81f3 RemoveDups.cmd\uff0c\u4ee5\u6c47\u5165\u65b0\u7684 BCD \u6863\u6848\uff1a<\/o:p>\n<\/p>\n

\n\tBcdedit \/import newbcd \/clean<\/o:p>\n<\/p>\n

\n\t8.      
\n\u50a8\u5b58\u6863\u6848\uff0c\u5e76\u4e8e\u547d\u4ee4\u63d0\u793a\u5b57\u7b26\u4e2d\u6267\u884c RemoveDups.cmd\uff0c\u5373\u53ef\u79fb\u9664 newbcd \u5b58\u653e\u533a\u4e2d\u6240\u6709\u7684\u91cd\u590d\u9879\u76ee\uff0c\u5e76\u5c06 newbcd \u5b58\u653e\u533a\u6c47\u5165\u7cfb\u7edf BCD \u4e2d\u3002<\/o:p>\n<\/p>\n

\n\t9.      
\n\u91cd\u65b0\u5f00\u542f\u7cfb\u7edf\u3002\u5728\u91cd\u65b0\u542f\u52a8\u671f\u95f4\uff0cEFI \u56fa\u4ef6\u4f1a\u91cd\u65b0\u521d\u59cb\u5316\u56fa\u4ef6\u5bf9\u8c61 GUID \u5bf9\u5e94\u4e8e\u7cfb\u7edf\u8fde\u63a5\u88c5\u7f6e\u7684 NVRAM\u3002\u4f7f\u7528 bcdedit \/enum \u56fa\u4ef6\u547d\u4ee4\uff0c\u786e\u8ba4\u6240\u6709\u91cd\u590d\u7684\u56fa\u4ef6\u9879\u76ee\u5747\u5df2\u79fb\u9664\u3002<\/o:p>\n<\/p>\n

\n\t <\/p>\n","protected":false},"excerpt":{"rendered":"

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