Linux Supplemental Mount swap partition

Linux Supplemental Mount swap partition

Computer room of a new cento,top found no swap partition, it appears that the computer room initial installation system has problems.

[Email protected] ~]# toptop-18:26:53 up 3:41, 2 users, load average:0.00, 0.01, 0.05tasks:213 Total, 1 running,  212 sleeping, 0 stopped, 0 zombiecpu (s): 0.0%us, 0.0%sy, 0.0%ni, 99.9%id, 0.1%wa, 0.0%hi, 0.0%si, 0.0%stmem:    16324896k Total, 259328k used, 16065568k free, 5984k buffersswap:0k total, 0k used, 0k free, 26932k Cached

As you can see, Swap is 0k

View the server system disk partition:

[[Email protected] ~]# parted /dev/sdagnu parted 2.1using /dev/sdawelcome  to GNU Parted! Type  ' Help '  to view a list of commands. (parted)  p                                                                   Model: ATA  st33000650ns  (SCSI) disk /dev/sda: 3001gbsector size  (logical/physical):  512B/ 512bpartition table: gptnumber  start   end      size    file system  name  flags 1       1049kb  316mb   315mb   ext4 2      316mb    4510mb  4194mb                      raid 3      4510MB   3001gb  2996gb  ext4

Replace a server that is just installed compare:

[[Email protected] ~]# parted /dev/sdagnu parted 2.1using /dev/sdawelcome  to GNU Parted! Type  ' Help '  to view a list of commands. (parted)  p                                                                   Model: ATA  st33000650ns  (SCSI) disk /dev/sda: 3001gbsector size  (logical/physical):  512B/ 512bpartition table: gptnumber  start   end      size    file system     name  flags 1       1049kb  106mb   105mb   ext4 2      106mb    8495mb  8389mb  linux-swap (v1)  3       8495mb  3001gb  2992gb  ext

It appears that the second partition is not partitioned, and the partition is mounted to try

[[Email protected] ~]# mkswap /dev/sda2setting up swapspace version 1,  size = 4095996 kibno label, uuid=d713cc10-10dc-42d0-b152-c6eecbcd6579#uuid= d713cc10-10dc-42d0-b152-c6eecbcd6579[[email protected] ~]# swapon /dev/sda2[[email  protected] ~]# toptop - 18:35:24 up  3:49,  2 users,   load average: 0.00, 0.01, 0.05Tasks: 212 total,   1  RUNNING, 211 SLEEPING,   0 STOPPED,   0 ZOMBIECPU (s):   0.0%us,  0.1%sy,  0.0%ni, 98.5%id,  1.3%wa,  0.0%hi,   0.0%si,  0.0%stMem:  16324896k total,   262768k used,  16062128k free,     6100k buffersswap:  4095996k total,     &nbSp;   0k used,  4095996k free,    27000k cached 

It worked,swap:4095996k total.

Finally put in the/etc/fstab, make sure to use it properly after reboot

[[email protected] ~]# cat /etc/fstab uuid=356d4065-9613-490e-a22f-f7c1a7b85d84  /                        ext4    defaults         1 1UUID=cb053b9d-9ef8-48e3-8227-683c62d937f6 /boot                    ext4    defaults         1 2uuid=d713cc10-10dc-42d0-b152-c6eecbcd6579 swap                      swap    defaults        0 0tmpfs                     /dev/shm                tmpfs    defaults        0 0devpts                   /dev/pts                 devpts  gid=5,mode=620   0 0sysfs                    /sys                     sysfs   defaults         0 0proc                     /proc                    proc    defaults        0  0label=/data2 /data2 ext4 defaults 0 0

This article is from "Fuzhou Hengda computer" blog, please be sure to keep this source http://fzhddn.blog.51cto.com/12650899/1917073

Linux Supplemental Mount swap partition