Swap Space Not Activated On Boot
Graham Watkins
shellycat.gw at ntlworld.com
Sat Jun 28 08:19:15 UTC 2014
Hello all,
The eternal newbie here again.
I've recently become aware that the 4Gb swap partition I created during
the installation process is not being started on boot. Initially at
least, this was due to my own stupidity because I somehow forgot to
format it. I have since formatted it using gnome-disks but it is still
not available on boot although I can start it manually in gnome-disks.
Most of the time,it's not really a problem but when I start my VMware
Windows 7 installation I get an error message complaining about the
absence of swap space and my system slows down to a crawl
I think I probably need to change something in fstab but so far all my
tinkering has been in vain.
fdisk -l and cat /etc/fstab is shown below:
sudo fdisk -l
Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders, total 625142448 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: 0x1956fe8b
Device Boot Start End Blocks Id System
/dev/sda1 * 63 625141759 312570848+ 83 Linux
Disk /dev/sdb: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 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: 0x00021c33
Device Boot Start End Blocks Id System
/dev/sdb1 * 2048 117270527 58634240 83 Linux
/dev/sdb2 117272574 312580095 97653761 5 Extended
/dev/sdb5 117272576 125270015 3998720 82 Linux swap / Solaris
/dev/sdb6 125272064 312580095 93654016 83 Linux
sudo cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sdb1 during installation
UUID=ac228376-2087-45ee-a47e-6018398186e2 / ext4
errors=remount-ro 0 1
# /home was on /dev/sdb6 during installation
UUID=fba7b900-46aa-402d-88a2-359f05945a2f /home ext4 defaults
0 2
# swap was on /dev/sdb5 during installation
UUID=83ffea71-702b-4570-9c9a-3680f3290c56 none swap sw
0 0
#/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
/dev/mapper/cryptswap1 none swap sw 0 0
Any advice would be appreciated.
Cheers,
Graham
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