安装 ubuntu 16.04 LTS 关于 swap

安装 ubuntu 16.04 LTS 关于 swap

如何避免重新格式化其他交换分区?
我的硬盘里有很多发行版:

  • Windows10
  • Ubuntu16.10
  • Antergos[ Arch Linux]
  • Fedora25
  • 可用空间
  • 数据

所有 Linux 发行版都有交换分区(每个 16GiB)。
我首先在可用空间中创建了一个 16 GiB 的交换分区,其余大小用于根分区(ext4)。

  • /dev/sda13
  • /dev/sda14 在此处输入图片描述

在此处输入图片描述

奇怪的是,我们无法选择交换分区,无论如何点击“立即安装”按钮

在此处输入图片描述

我不想重新格式化那些 Linux 的交换分区,该如何避免呢?

硬盘:2 TiB MBR
fdisk -l 的输出

ubuntu-gnome@ubuntu-gnome:~$ sudo fdisk -l Disk /dev/ram0: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram1: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram2: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram3: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram4: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram5: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram6: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram7: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram8: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram9: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram10: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram11: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram12: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram13: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram14: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/ram15: 64 MiB, 67108864 bytes, 131072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/loop0: 1.2 GiB, 1246838784 bytes, 2435232 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 /dev/sda: 1.8 TiB, 2000398934016 bytes, 3907029168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0xaaf06e0e

Device Boot Start End Sectors Size Id Type /dev/sda1 2048 1026047 1024000 500M 7 HPFS/NTFS/exFAT /dev/sda2 1026048 525314047 524288000 250G 7 HPFS/NTFS/exFAT /dev/sda3 525316094 3907028991 3381712898 1.6T f W95 Ext'd (LBA) /dev/sda5 2644512768 3907028991 1262516224 602G 7 HPFS/NTFS/exFAT /dev/sda6 525316096 557314047 31997952 15.3G 82 Linux swap / Solaris /dev/sda7 557316096 1057314815 499998720 238.4G 83 Linux /dev/sda8 1057314817 1058291377 976561 476.9M 83 Linux /dev/sda9 1058291379 1090291377 31999999 15.3G 83 Linux /dev/sda10 1090291379 1590291377 499999999 238.4G 83 Linux /dev/sda11 * 1590294528 2114582527 524288000 250G 83 Linux /dev/sda12 2114584576 2148139007 33554432 16G 82 Linux swap / Solaris

Partition 3 does not start on physical sector boundary. Partition 8 does not start on physical sector boundary. Partition 9 does not start on physical sector boundary. Partition 10 does not start on physical sector boundary. Partition table entries are not in disk order.

Disk /dev/sdb: 7.2 GiB, 7742685184 bytes, 15122432 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 Disklabel type: dos Disk identifier: 0x178e5ca0

Device Boot Start End Sectors Size Id Type /dev/sdb1 * 0 2538431 2538432 1.2G 0 Empty /dev/sdb2 2511036 2515771 4736 2.3M ef EFI (FAT-12/16/32) ubuntu-gnome@ubuntu-gnome:~$

答案1

您不需要为不同的系统设置不同的交换分区,就像您不需要为不同的系统设置不同的 RAM 一样。只需在所有系统之间共享一个即可。您应该使用最左边的分区,因为它的读/写速度最快(在 HDD 上)。

关机后唯一相关的内容仍在交换区的情况是当您将 PC 休眠(挂起到磁盘)时。但无论如何,默认情况下该操作是禁用的。

不必担心它们是否被格式化。如果没有系统挂起到磁盘(并且只有当使用交换分区来保存挂起映像时才挂起,但情况不一定如此),则不会发生任何变化。

如果使用 UUID 自动挂载交换分区,则格式化交换分区会出现问题。要检查是否是这种情况,请打开/etc/fstab系统文件。如果有一行包含以 开头的单词“swap” UUID=,则必须用新 UUID 替换 UUID。请注意,不必有这样的行。您的交换分区可以通过其设备名称来识别。在这种情况下,行以 开头,无需/dev/sda12执行任何操作 - 除非您删除了分区或它现在是不同类型的分区,在这种情况下必须更改设备名称。

如果您删除了所有交换分区,只留下一个,请将相同的 UUID 写入/etc/fstab所有 Linux 系统的相应行。这可以在实时会话中或在系统本身中完成。更改将在您下次启动后生效。如果 UUID 发生更改,则不会挂载交换分区,但除了没有交换分区外,系统可以正常使用。

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