我不希望将整个 SSD 用于 OpenBSD 5.5。（SSD 是新的，并使用 Gparted 预先格式化为 MSDOS）
在安装过程中和 fdisk 阶段，我选择了分区号：0 来安装 OpenBSD（我将分区 ID 更改为 a6）。我计划在分区号：1 或 2 中安装其他类 Unix 操作系统。
当提示分区偏移量（默认为 0）时，我应该输入什么数字：0、63、64、2048 还是 4096？
以下是当我在分区偏移量中输入 0 时有关我的 SSD 磁盘几何形状的详细信息：
Use (W)hole disk or (E)dit the MBR? [whole] e
You will now create a single MBR partition to contain your OpenBSD data. This partition must have an id of ‘A6’; must *NOT* overlap other partitions; and must be marked as the only active partition. Inside the fdisk command, the ‘manual’ command describes all the fdisk commands in detail.
Disk: sd0 geometry: 29185/255/63 [468862128 sectors)
Offset: 0 Signature: 0xAA55
Starting Ending LBA Info:
#: id C H S - C H S [start : size]
0: 00 0 0 0 - 0 0 0 [0 : 0 ] unused
1: 00 0 0 0 - 0 0 0 [0 : 0 ] unused
2: 00 0 0 0 - 0 0 0 [0 : 0 ] unused
3: 00 0 0 0 - 0 0 0 [0 : 0 ] unused
Enter ‘help’ for information
fdisk: 1> e 0
Partition id ('0' to disable) [0 - FF]: [0] (? for help) a6
Do you wish to edit in CHS mode? [n] no
Partition offset: [0] 0
Partition size: [0] 70g
fdisk:*1> f 0
Partition 0 marked active
fdisk:*1> q
Writing MBR at offset 0
The auto-allocated layout for sd0 is:
安装过程非常顺利，没有任何障碍。
重新启动机器后，最后几行是错误消息：
root on sd0a swap on sd0b dump on sd0b
panic: root filesystem has size 0
Stopped at Debugger+0x5 : leave
Run at least 'trace' AND 'ps' AND INCLUDE OUTPUT WHEN REPORTING THIS PANIC! IF RUNNING SMP, USE 'mach ddbcpu <#>' AND 'trace' ON OTHER PROCESSORS TOO.
DO NOT EVEN BOTHER REPORTING THIS WITHOUT INCLUDING THAT INFORMATION!
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