Today I have resize all Linux partition and find that my swap is not mounted. I have make swap again and its working fine.
Before resize of partition :
alienvault:/var/log# df -h
Filesystem Type Size Used Avail Use% Mounted on
/dev/sda1 ext3 95G 74G 16G 83% /
tmpfs tmpfs 1008M 0 1008M 0% /lib/init/rw
udev tmpfs 10M 616K 9.4M 7% /dev
tmpfs tmpfs 1008M 0 1008M 0% /dev/shm
You have new mail in /var/mail/root
alienvault:/var/log# fdisk -l
Disk /dev/sda: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000de769
Device Boot Start End Blocks Id System
/dev/sda1 * 1 12518 100550803+ 83 Linux
/dev/sda2 12519 13054 4305420 5 Extended
/dev/sda5 12519 13054 4305388+ 82 Linux swap / Solaris
alienvault:/var/log# free -m
total used free shared buffers cached
Mem: 2014 1998 16 0 5 708
-/+ buffers/cache: 1284 729
Swap: 4204 1226 2978
alienvault:/var/log#
login as: root
root@10.1.50.115’s password:
Linux alienvault 2.6.31.6 #3 SMP Tue Jul 13 06:50:17 EDT 2010 x86_64
Profiles: Server Sensor Framework Database
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== __ _ | | (_) ___ _ __ __ __ __ _ _ _ | | | |_ ==
== / _` | | | | | / _ | ‘_ / / / _` | | | | | | | | __| ==
== | (_| | | | | | | __/ | | | | V / | (_| | | |_| | | | | |_ ==
== __,_| |_| |_| ___| |_| |_| _/ __,_| __,_| |_| __| ==
== ==
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===================== http://www.alienvault.com ========================
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You have new mail.
Last login: Fri Apr 6 11:51:04 2012
alienvault:~#
alienvault:~#
alienvault:~# df -h
Filesystem Type Size Used Avail Use% Mounted on
/dev/sda1 ext3 95G 53G 38G 59% /
tmpfs tmpfs 1008M 0 1008M 0% /lib/init/rw
udev tmpfs 10M 616K 9.4M 7% /dev
tmpfs tmpfs 1008M 0 1008M 0% /dev/shm
After resize of partition:
alienvault:~# fdisk -l
Disk /dev/sda: 214.7 GB, 214748364800 bytes
255 heads, 63 sectors/track, 26108 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000de769
Device Boot Start End Blocks Id System
/dev/sda1 * 1 25036 201101638+ 83 Linux
/dev/sda2 25037 26108 8610840 5 Extended
/dev/sda5 25037 26108 8610808+ 82 Linux swap / Solaris
alienvault:~# resize2fs /dev/sda1
resize2fs 1.41.3 (12-Oct-2008)
Filesystem at /dev/sda1 is mounted on /; on-line resizing required
old desc_blocks = 6, new_desc_blocks = 12
Performing an on-line resize of /dev/sda1 to 50275409 (4k) blocks.
The filesystem on /dev/sda1 is now 50275409 blocks long.
alienvault:~# fdisk -l
Disk /dev/sda: 214.7 GB, 214748364800 bytes
255 heads, 63 sectors/track, 26108 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000de769
Device Boot Start End Blocks Id System
/dev/sda1 * 1 25036 201101638+ 83 Linux
/dev/sda2 25037 26108 8610840 5 Extended
/dev/sda5 25037 26108 8610808+ 82 Linux swap / Solaris
alienvault:~# df -h
Filesystem Type Size Used Avail Use% Mounted on
/dev/sda1 ext3 189G 53G 127G 30% /
tmpfs tmpfs 1008M 0 1008M 0% /lib/init/rw
udev tmpfs 10M 616K 9.4M 7% /dev
tmpfs tmpfs 1008M 0 1008M 0% /dev/shm
alienvault:~# free -m
total used free shared buffers cached
Mem: 2014 1995 18 0 784 197
-/+ buffers/cache: 1013 1001
Swap: 0 0 0
alienvault:~# swapoff -a
alienvault:~# swapon -a
swapon: /dev/sda5: Invalid argument
alienvault:~# mkswap /dev/sda5
Setting up swapspace version 1, size = 8817463 kB
no label, UUID=cc1ce0ea-364b-4acc-8f58-b54f91ff6349
alienvault:~#
alienvault:~# swapon -a
alienvault:~# df -h
Filesystem Type Size Used Avail Use% Mounted on
/dev/sda1 ext3 189G 53G 127G 30% /
tmpfs tmpfs 1008M 0 1008M 0% /lib/init/rw
udev tmpfs 10M 616K 9.4M 7% /dev
tmpfs tmpfs 1008M 0 1008M 0% /dev/shm
alienvault:~# free -m
total used free shared buffers cached
Mem: 2014 1969 44 0 673 271
-/+ buffers/cache: 1024 989
Swap: 8408 0 8408
alienvault:~#