OSX: 10.10 Yosemite Developer Preview 2安装的一个注意事项

来源：互联网发布：paxos算法活锁编辑：程序博客网时间：2024/06/05 23:55

上一篇说到，安装完10.10 DP2之后，在显示每个分区的磁盘工具中,各个分区看着有些异样，这是因为它把原来的普通分区转化为了Core Storage了。

下面是我安装在普通Mac3 (disk1s5)分区之后，磁盘的内部情况。参考我前面的三篇blog(OSX: 逻辑卷管理系统Core Storage(1), OSX: 逻辑卷管理系统Core Storage(2)和OSX: 逻辑卷管理系统Core Storage(3))来看即能看懂。

下面是运行diskutil list的结果，原来disk1s5处的Apple_HFS Mac3的地方被Apple_CoreStorage 的取代了，多出了一个disk2的Apple_HFS X.10dp2(注：X.10dp2是我把Mac3改名的结果)：

/dev/disk1   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:      GUID_partition_scheme                        *120.0 GB   disk1   1:                        EFI                         209.7 MB   disk1s1   2:                  Apple_HFS X.93                    29.5 GB    disk1s2   3:                 Apple_Boot Recovery HD             650.0 MB   disk1s3   4:                  Apple_HFS Mac2                    30.0 GB    disk1s4   5:          Apple_CoreStorage                         19.5 GB    disk1s5   6:                 Apple_Boot Recovery HD             650.0 MB   disk1s6   7:                  Apple_HFS Mac4                    29.3 GB    disk1s7   8:                  Apple_HFS Test                    9.9 GB     disk1s8/dev/disk2   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:                  Apple_HFS X.10dp2                *19.0 GB    disk2

这个是查看disk1s5的结果，可以看到它的原名叫Mac3：

<span style="color:#009900;">$diskutil info disk1s5</span>   Device Identifier:        disk1s5   Device Node:              /dev/disk1s5   Part of Whole:            disk1   Device / Media Name:      Mac3   Volume Name:              Not applicable (no file system)   Mounted:                  Not applicable (no file system)   File System:              None   Partition Type:           Apple_CoreStorage   OS Can Be Installed:      No   Media Type:               Generic   Protocol:                 FireWire   SMART Status:             Not Supported   Total Size:               19.5 GB (19484213248 Bytes) (exactly 38055104 512-Byte-Blocks)   Volume Free Space:        Not applicable (no file system)   Device Block Size:        512 Bytes   Read-Only Media:          No   Read-Only Volume:         Not applicable (no file system)   Ejectable:                Yes   Whole:                    No   Internal:                 No

这个是看disk2的, Media Name处的名字是磁盘的名字：

$ <span style="color:#009900;">diskutil info disk2</span>   Device Identifier:        disk2   Device Node:              /dev/disk2   Part of Whole:            disk2   Device / Media Name:      LaCie Group SA   Volume Name:              X.10dp2   Escaped with Unicode:     X.10dp2   Mounted:                  Yes   Mount Point:              /Volumes/X.10dp2   Escaped with Unicode:     /Volumes/X.10dp2   File System Personality:  Journaled HFS+   Type (Bundle):            hfs   Name (User Visible):      Mac OS Extended (Journaled)   Journal:                  Journal size 8192 KB at offset 0x98000   Owners:                   Disabled   Content (IOContent):      Apple_HFS   OS Can Be Installed:      Yes   Media Type:               Generic   Protocol:                 FireWire   SMART Status:             Not Supported   Volume UUID:              D237CD21-49AE-351F-B2A8-E559D61BDC51   Total Size:               19.0 GB (18997837824 Bytes) (exactly 37105152 512-Byte-Blocks)   Volume Free Space:        5.7 GB (5718700032 Bytes) (exactly 11169336 512-Byte-Blocks)   Device Block Size:        512 Bytes   Read-Only Media:          No   Read-Only Volume:         No   Ejectable:                Yes   Whole:                    Yes   Internal:                 No   OS 9 Drivers:             No   Low Level Format:         Not supported

这个是看Core Storage的：

<span style="color:#009900;">$ diskutil cs list</span>CoreStorage logical volume groups (1 found)|+-- Logical Volume Group 76704EE0-1F96-4F64-A28A-C7A8471109B2    =========================================================    Name:         <span style="color:#ff0000;">Mac3</span>    Status:       Online    Size:         19484213248 B (19.5 GB)    Free Space:   150827008 B (150.8 MB)    |    +-< Physical Volume D9465F3E-46B6-47FD-9D31-330FA7255E02    |   ----------------------------------------------------    |   Index:    0    |   Disk:     disk1s5    |   Status:   Online    |   Size:     19484213248 B (19.5 GB)    |    +-> Logical Volume Family DF805042-6E4A-4EB5-AB4F-51B15E3A1CB3        ----------------------------------------------------------        Encryption Status:       Unlocked        Encryption Type:         None        Conversion Status:       NoConversion        Conversion Direction:    -none-        Has Encrypted Extents:   No        Fully Secure:            No        Passphrase Required:     No        |        +-> Logical Volume 7588EF0D-4DEE-4A27-99AC-95371434A42A            ---------------------------------------------------            Disk:               disk2            Status:             Online            Size (Total):       18997837824 B (19.0 GB)            Size (Converted):   -none-            Revertible:         Yes (no decryption required)            LV Name:            X.10dp2            Volume Name:        X.10dp2            Content Hint:       Apple_HFS

一旦转化为使用Core torage目前来说，在磁盘工具中，整个磁盘上的所有分区就无法再改变大小了！！！只能用终端命令了－这也是为什么好多人无法改变分区大小的原因之一。

预期：Core Storage在新版本中可能会担当重任，有可能会发布第一个正式版本，而磁盘工具应该也会支持对Core Storage的更多功能，比如改变分区大小，创建新分区等等。

让咱们翘首以盼，抑或拭目以待吧。

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