Swap wont turn on automatically

[Dr Belka]

I am having a problem with my swap partition. It wont automatically turn on. When I go into the gnome partition editor from the desktop, I can select the swap partition and "swapon" it, but I want ubuntu to do it automatically on startup.

Anyone?

[ryanhaigh]

To have swap enabled at startup there has to be an associated entry in /etc/fstab. If you post the current contents of that file it should be pretty easy to determine whether it is enabled or not.

[Dr Belka]

# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# /dev/sda5
UUID=fbab27fc-af55-451e-a361-5b593e6f7c49 / ext3 relatime,errors=remount-ro 0 1
# /dev/sda6
UUID=a6a50703-1855-4211-81c2-212e878918f9 none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0


I recently resized and its still not working

[JC Cheloven]

# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# /dev/sda5
UUID=fbab27fc-af55-451e-a361-5b593e6f7c49 / ext3 relatime,errors=remount-ro 0 1
# /dev/sda6
UUID=a6a50703-1855-4211-81c2-212e878918f9 none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0


I recently resized and its still not working

Probably the UUID of the swap partition is incorrect. To see this, can you please post the output of

sudo blkid

[Dr Belka]

/dev/sda1: UUID="2A38FDC038FD8AD9" LABEL="PQSERVICE" TYPE="ntfs"
/dev/sda2: UUID="2CBABF41BABF05FC" LABEL="OS" TYPE="ntfs"
/dev/sda3: UUID="2ECA38BB0DAFEEAE" LABEL="Storage" TYPE="ntfs"
/dev/sda5: UUID="fbab27fc-af55-451e-a361-5b593e6f7c49" TYPE="ext3"
/dev/sda6: TYPE="swap" UUID="ff381bef-a608-4aea-b506-6333915b7a94"
/dev/sdb1: SEC_TYPE="msdos" LABEL="486MiB fat" UUID="499F-8664" TYPE="vfat"

[ryanhaigh]

As you can see the swap UUID you got from that last command doesn't match the one in /etc/fstab. You can edit the /etc/fstab entry so that it matches the real UUID of the partition and then it should mount swap every boot.

Use alt-f2 to bring up the run dialog then:

gksudo gedit /etc/fstab

Did you resize some of your partitions or something?

[Dr Belka]

i mentioned that i did resize the partiton

[Dr Belka]

Alright, i edited the file and restarted and it worked. Thank you all very much.

[JC Cheloven]

Alright, i edited the file and restarted and it worked. Thank you all very much.

You're welcome

[green0eggs]

Thank you JC Cheloven, I had this exact same issue after messing around resizing my partitions. It is now resolved.