Ubuntu :: U11.04 Not Mounting My Swap Partition / Fix It?

May 11, 2011

Ubuntu has been complaining about swap not being ready during boot. The swap partition was showing up un-known in gparted. I booted off CD, reformatted it to swap. Error message gone but system monitor > resources shows my swap size to be 86GB (the exact size of my shared NTFS volume). gparted shows the swap partition as not 'swapped on'

I am running Ubuntu 11.04 along side Windows 7 (as well as my factory restore partition) and an NTFS shared partition.

My partition structure in order of location on disc. Screen shot below to help.
sda1-2 Windows 7
sda4, extended partition
--sda6 Ubuntu
--sda7 swap
--sda5 NTFS shared partition
sda3 Factory restore image

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I have the swap partition configured normally in fstab but it doesn't automount when I boot up. Not only that but I can't manually mount it either (ie with 'swapon -a', 'swapon -L /dev/sda7' etc). When I try I get this error -

Code:

[spoovy@kermitfed ~]$ sudo swapon -a
swapon: /dev/sda7: read swap header failed: Invalid argument
fstab -

Code:

/dev/sda7 swap swap defaults 0 0

The swap partition is used by another installation (Ubuntu dual-boot), which mounts it fine each boot.

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Just the last day or so, I've noticed a long pause when I boot my laptop, with lots of disk activity. dmesg says:

[Code]...

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I had a drive with a partition layout like so:

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~100gig Ubuntu - EXT3
~100gig Snow Leopard - HFS+
~100gig Extended Partition
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Feb 8, 2010

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I am having issues with Grub 2 after installing Debian 7.8.0.The computer is a HP Pavilion 500-307nb. I made the original harddrive /dev/sdb and inserted a Samsung Evo 840 as /dev/sda. From the original hard drive (/dev/sdb), I wiped the windows partition, but left all other partitions unchanged (in case I would ever want to recover the desktop to its original state). I replaced the wiped windows partition with a swap partition and an LVM partition.These are my hard drive partitions:

/dev/sda (Samsung Evo 840)

Number Start End Size File system Name Flags
1 1049kB 3146kB 2097kB primary bios_grub
2 3146kB 944MB 941MB ext4 boot
3 944MB 94.4GB 93.4GB host lvm
4 94.4GB 1000GB 906GB guests lvm

[code]....

The partition /dev/sda3 has 2 logical volumes with filesystem ext4 that I mount to / and /home.The partition /dev/sda2 is mounted to /boot..When I install like this, Debian installs fine, however Grub2 is not installed correctly.Debian installs grub-pc which seems not able to boot the gpt partition. So I boot the Debian CD in rescue mode and execute:

mount /dev/sda2 /boot
aptitude purge grub-pc
aptitude -y install grub-efi

After rebooting, I come in the grub rescue shell, which says: error: no such device: 986f2176--4a4b-4222-83b9-8636a034b3c7.

When I then enter in the grub rescue shell:
set boot=(hd0,gpt2)
set prefix=(hd0,gpt2)/grub
insmod normal
normal

Grub and Debian start up correctly.why can Grub not start up automatically correctly? Where does the UUID 986f2176--4a4b-4222-83b9-8636a034b3c7 come from? I have reinstalled Grub several times, I have reinstall Debian several times, I have even wiped all partitions from /dev/sda and recreated a new gpt table with parted and manually set the partitions in parted. Still on each reinstallation, Grub fails because it cannot find exactly the same UUID. Since this UUID is always the same, it must be stored somewhere, but it cannot be the partitions, I have wiped them and the partition table several times.

I did though a firmware update of the Samsung Evo 840 before reinstallation, could this be a cause?Also the problem is not in grub.cfg. Grub starts correctly if I enter the commands above in the grub rescue screen and the UUID value does not appear there.

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Code:
Intel Celeron 2.2 Ghz
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Code:
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Code:
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Code:
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Code:
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top - 23:40:29 up 2 min, 2 users, load average: 2.69, 1.37, 0.52
Tasks: 150 total, 1 running, 149 sleeping, 0 stopped, 0 zombie
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Mem: 315168k total, 302344k used, 12824k free, 35264k buffers
Swap: 0k total, 0k used, 0k free, 127912k cached

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