Linux增加swap分区
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建立一个普通的Linux分区（主分区、逻辑分区均可） fdisk /dev/sdb Command (m for help): p Disk /dev/sdb: 8589 MB, 8589934592 bytes 255 heads, 63 sectors/track, 1044 cylinders, total 16777216 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x740e36e3 Device Boot Start End Blocks Id System /dev/sdb1 63 4194367 2097152+ 83 Linux /dev/sdb2 4194368 16777215 6291424 5 Extended /dev/sdb5 4194431 8388735 2097152+ 83 Linux /dev/sdb6 8388799 16777215 4194208+ 83 Linux 以sdb6为例，可以看到分区的十六进制编码是83，即普通的Linux分区。 修改分区类型的十六进制编码 //t命令：改写分区十六进制编码 Command (m for help): t Partition number (1-6): 6 //L命令可以查看不同分区的十六进制编码，交换分区为82 Hex code (type L to list codes): 82 Changed system type of partition 6 to 82 (Linux swap / Solaris) Command (m for help): p Disk /dev/sdb: 8589 MB, 8589934592 bytes 255 heads, 63 sectors/track, 1044 cylinders, total 16777216 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x740e36e3 Device Boot Start End Blocks Id System /dev/sdb1 63 4194367 2097152+ 83 Linux /dev/sdb2 4194368 16777215 6291424 5 Extended /dev/sdb5 4194431 8388735 2097152+ 83 Linux /dev/sdb6 8388799 16777215 4194208+ 82 Linux swap / Solaris //分区表写入磁盘并退出 Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks. 格式化交换分区 mkswap /dev/sdb6 Setting up swapspace version 1, size = 4194204 KiB no label, UUID=40eff2c0-3f6b-440e-bc2a-f71d3d5581a7 启用交换分区 swapon /dev/sdb6 查看交换分区加载状态 free total used free shared buffers cached Mem: 1030108 160768 869340 264 12040 56188 -/+ buffers/cache: 92540 937568 Swap: 6291352 0 6291352 停用交换分区 swapoff /dev/sdb6 p.s. 不能直接使用mount命令挂载swap分区，因为swap分区是没有挂载点的。 直接修改/etc/fstab配置文件，使系统启动时自动挂载： /dev/sdb6 swap swap defaults 0 0 //查看交换分区 swapon -s Filename Type Size Used Priority /dev/sda2 partition 2097148 0 -1 /dev/sdb6 partition 4194204 0 -2 （编辑：银川站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
