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为FreeBSD添加新硬盘

 作者: 李冬 邮件: [email protected] 本文介绍手工为FreeBSD添加新硬盘的一般性方法。假设我们的FreeBSD已经有了一块IDE硬盘,我们需要为它添加一块新的IDE硬盘,并把新添加的硬盘的所有空间作为一个分区加载到/disk1下面。 基础知识 FreeBSD分区描述符为从"a"到"h"的8个字母。根据惯例,分区"c"被保留用作描述整个磁盘,"a"用作标识根分区,"b"用作标识交换分区。对于新添加的硬盘,我们常常只建立一个分区,标识为"e"。 IDE硬盘标记为ad,而SCSI硬盘标记为da,从0开始计数,因此,我们新添加的IDE硬盘将作为ad1出现在系统中。 一般步骤 把新的IDE硬盘接入系统,并确认开机以后系统找到了新添加的硬盘。可以通过检查/var/run/dmesg.boot来确认系统是否找到新添加的硬盘。 准备 vms# dd if=/dev/zero of=/dev/rad1 bs=1k count=1 1+0 records in 1+0 records out 1024 bytes transferred in 0.000822 secs (1245640 bytes/sec) vms# 初始化磁盘 vms# fdisk -BI ad1 ******* Working on device /dev/ad1 ******* fdisk: invalid fdisk partition table found vms# 建立FreeBSD分区 vms# disklabel -B -w -r ad1s1 auto vms# Feb 23 14:01:40 /kernel: ad1: cannot find label (no disk label) Feb 23 14:01:40 /kernel: ad1s1: cannot find label (no disk label) Feb 23 14:01:40 /kernel: ad1: cannot find label (no disk label) Feb 23 14:01:40 /kernel: ad1s1: cannot find label (no disk label) vms# 建立逻辑分区 vms# disklabel -e ad1s1 type: unknown disk: amnesiac label: flags: bytes/sector: 512 sectors/track: 63 tracks/cylinder: 16 sectors/cylinder: 1008 cylinders: 18931 sectors/unit: 19083393 rpm: 3600 interleave: 1 trackskew: 0 cylinderskew: 0 headswitch: 0 # milliseconds track-to-track seek: 0 # milliseconds drivedata: 0 8 partitions: # size offset fstype [fsize bsize bps/cpg] c: 19083393 0 unused 0 0 # (Cyl. 0 - 18931*) e: 19083393 0 4.2BSD 4096 8192 16 # (Cyl. 0 - 18931*) 格式化分区,创建文件系统 vms# newfs /dev/ad1s1e Warning: Block size and bytes per inode restrict cylinders per group to 67. Warning: 3968 sector(s) in last cylinder unallocated /dev/ad1s1e: 19083392 sectors in 4660 cylinders of 1 tracks, 4096 sectors 9318.1MB in 70 cyl groups (67 c/g, 134.00MB/g, 8512 i/g) super-block backups (for fsck -b #) at: 32, 274464, 548896, 823328, 1097760, 1372192, 1646624, 1921056, 2195488, 2469920, 2744352, 3018784, 3293216, 3567648, 3842080, 4116512, 4390944, 4665376, ... 加载分区 vms# mkdir -p /disk1 vms# mount -t ufs /dev/ad1s1e /disk1 -------------------------------------------------------------------------------- 该文档由本站会员 ld 提交,有关该文档的任何问题请与提交者联系。

 

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