For the first time, the CentOS dual system is installed under the Win7

End result: Failed.

I have to say , this is a very sad ending. A full weekend ended with this ending. From looking around the Internet for relevant information, to prepare all the required conditions, toss three days, or no success. Do not understand where the problem is, my computer's own configuration problems, or I choose the latest CentOS system, or the online tutorial has a problem, is unclear. In view of their computer data backup trouble, related software installation time, I temporarily suspended the exploration of CentOS. However, there is still a greater interest in it, to be explored later.

Harvest:

(1) Before writing this article, only from the online Baidu data learned that CentOS does not support UEFI installation, and LZ is so, the problem may be out here, forget the reader after the attempt to have the exact answer can be told in the LZ;

(2) file system issues. The default file system used by Linux for a long time is EXT3, and now Win7 is usually NTFS. Specific details There are many other kinds, such as fat32,ext2, and so on, take time LZ re-finishing, itself is the process of learning;

(3) Windows partition issue. MBR format HDD win can only have four primary partitions, where the system disk occupies one, the default partition occupies one, so normally we can only sub-default to two primary partitions. If you really need to partition a more primary partitions, you can use a certain tool to the system default of that 100M of the main partition and system disk merge, and repair Win7 boot, but this may accidentally let your system collapse. The Win7 of the GPT format hard drive is not limited by the number of primary partitions, but also supports more than 2T of hard drives, but because the GBT format hard disk does not support the BIOS, the target PC's motherboard should support UEFI boot, and should be aware that support uefi/ GPT boot must be a 64-bit system;

(4) system drive letter. In Baidu asked happened to meet, at the same time, he also met the problem: the computer hard disk has a number of identical partitions, such as E and the F disk contains the same content, but there are two of icons. This situation occurs because a hard disk is assigned two drive letter, one can be removed;

(5) Data loss. This time, whether the use of third-party software on disk operations, or through the system disk Management, without exception, due to excessive number of operations, too frequent, resulting in computer partitions and data loss four or five times, but also the wrong data erasure of the disk. Let LZ's small heart is really oh da. Encounter this situation, should calmly face, do not read and write to the disk again, avoid two operations, you can search for lost partitions and data with Diskgenius, pay attention to what you need, do not restore some of the past partition. This is the test of our psychological quality;

(6) some good software.

Partition Assistant (set primary partition and logical partition; Set EXT3 file format, merge partition), Partition Magic Assistant (set file EXT3), Diskgenius (retrieve lost partition and data), EASYBCD free version (very good boot setup software, although I didn't how to use it), Wingrub (LZ use only to see each partition in the system number, but did not find its big role, see online Some people say this is overqualified), Ext2volume (Mount and read and write to the Ext file system under Windows).

Feeling: There is a long long way to go, I really was too slag, have been sophomore under, take out the things are not, unfortunately read the two years of university. It's ridiculous to shout about how long a year it is to learn Linux and what he has done. As an engineering man, he should think rationally as a condition of first consideration. Stop pens.

--zerone Kee

CentOS dual system installed under Win7 for the first time