Swap does not mount [swapon failed: Device or resource busy]

Param

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Sep 14, 2011, 5:20:01 PM9/14/11

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Hi,

The swap partition did not mount post-installation (Debian "Squeeze" (Xfce)).
Created a 2nd swap partition, & planned to delete the earlier swap partition. The 2nd swap partition doesn't mount either.

(Been using Debian (my 1st intro to Linux) for < 3 weeks. If
a) I'm missing any blindingly obvious solution(s)
b) this post should have been posted under a different topic/forum

then please let me know.)

Further info:
Followed the instructions at http://web.mit.edu/rhel-doc/5/RHEL-5-ma ... dding.html
Name of logical volume: HU

/etc/fstab: (commented out the earlier swap partition)
---------------------
# /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>
proc /proc proc defaults 0 0
/dev/mapper/HU-root / ext3 errors=remount-ro 0 1
# /boot was on /dev/sda5 during installation
UUID=50ed87f2-905e-4780-b867-a8e0831e3db8 /boot ext3 defaults 0 2
/dev/mapper/HU-home /home ext3 defaults,user_xattr 0 2

/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto 0 0
/dev/sdb1 /media/usb0 auto rw,user,noauto 0 0

#/dev/mapper/HU-swap none swap sw 0 0
#2nd_swap
/dev/mapper/HU-swap2 swap swap defaults 0 0
------------------------------------------------------------------------------------------------------------------------------

(tried /dev/HU/swap2 instead of /dev/mapper/HU-swap2. Did not work.)

Output of fdisk -l

Code: Select all: Disk /dev/sda: 120.0 GB, 120034123776 bytes 255 heads, 63 sectors/track, 14593 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xed1f86f7 Device Boot Start End Blocks Id System /dev/sda1 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 * 64 77 102400 7 HPFS/NTFS Partition 2 does not end on cylinder boundary. /dev/sda3 77 3481 27343750 7 HPFS/NTFS Partition 3 does not end on cylinder boundary. /dev/sda4 3481 14594 89261057 5 Extended Partition 4 does not end on cylinder boundary. /dev/sda5 3481 3572 732160 83 Linux /dev/sda6 3573 14594 88527872 8e Linux LVM

Output of swapon -a

Code: Select all: swapon: /dev/mapper/HU-swap2: swapon failed: Device or resource busy

Output of swapon -va

Code: Select all: swapon on /dev/mapper/HU-swap2 swapon: /dev/mapper/HU-swap2: found swap signature: version 1, page-size 4, same byte order swapon: /dev/mapper/HU-swap2: pagesize=4096, swapsize=2147483648, devsize=2147483648 swapon: /dev/mapper/HU-swap2: swapon failed: Device or resource busy

Output of swapon -s

Code: Select all: swapon on /dev/mapper/HU-swap2 Filename Type Size Used Priority /dev/dm-3 partition 2097144 0 42

Output of mount /dev/HU/swap2
mount: mount point none does not exist

How can I mount swap upon booting? Would really appreciate help/suggestions.
Thanks for your time and patience,
--

Walter Hurry

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Sep 14, 2011, 5:30:02 PM9/14/11

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On Wed, 14 Sep 2011 16:54:29 -0400, Param wrote:

Please post the outputs of:

cat /etc/fstab

sudo fdisk -l

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Jochen Spieker

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Sep 15, 2011, 4:40:02 AM9/15/11

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Param:

>
> The swap partition did not mount post-installation (Debian "Squeeze"
> (Xfce)).
> Created a 2nd swap partition, & planned to delete the earlier swap
> partition. The 2nd swap partition doesn't mount either.

Strange. Did you set up encryption as well?

What might help is the output of pvs, vgs and lvs (everything as root or
using sudo). If you cannot think of anything else to try, please remove
swap2 again and document all the steps you take to create it again (all
commands including complete output).

> (Been using Debian (my 1st intro to Linux) for < 3 weeks.

Welcome on board! Using Debian as the first distro is a wise choice. I
did the same and never seriously considered using anything else.

> If
> a) I'm missing any blindingly obvious solution(s)
> b) this post should have been posted under a different topic/forum
>
> then please let me know.)

No, eveyyhing is fine.

> Further info:
> Followed the instructions at http://web.mit.edu/rhel-doc/5/RHEL-5-ma ...

> dding.html<http://web.mit.edu/rhel-doc/5/RHEL-5-manual/Deployment_Guide-en-US/s1-swap-adding.html>

Just a general advice: you can save yourself some trouble by preferring
Debian-related documentation. The link above applies to Debian as well,
but with only a few weeks of Linux experience you probably cannot always
tell whether you should be doing something "the Debian way" or not.

> #/dev/mapper/HU-swap none swap sw 0 0
> #2nd_swap
> /dev/mapper/HU-swap2 swap swap defaults 0 0

^^^^ ^^^^^^^^

Your entry for swap2 differs from the entry generated by the installer.
It should still wotrk, though. I just tried it myself.

> (tried /dev/HU/swap2 instead of /dev/mapper/HU-swap2. Did not work.)

/dev/HU/swap2 is just a symlink anyway.

> Output of swapon -s
> Code: Select all <http://forums.debian.net/viewtopic.php?f=5&t=70280#> swapon

> on /dev/mapper/HU-swap2
> Filename Type Size Used Priority
> /dev/dm-3 partition 2097144 0 42

This looks like you already have active swap. Use 'ls -l /dev/mapper' to
see which LV is /dev/dm3.

> Output of mount /dev/HU/swap2
> mount: mount point none does not exist

You cannot use 'mount' to activate swap. This isn't supposed to work.
Using 'swapon' is correct.

J.
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doublethink of our times.
[Agree] [Disagree]
<http://www.slowlydownward.com/NODATA/data_enter2.html>

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