Sponsored Content
Operating Systems Linux How to give UUID to a swap partition? Post 302154577 by Santi on Monday 31st of December 2007 09:27:09 AM
Old 12-31-2007
How to give UUID to a swap partition?

Dear Folks

Is there anyway to give a UUID to a swap partition? mkswap on CentOS 5 (util-linux-2.13-0.45.el5_1.1) appears to override this option ;-(

Code:
# swapoff -a
# mkswap -L swap1 /dev/sda3
Setting up swapspace version 1, size = 4293591 kB
LABEL=swap1, no uuid



And there's no UUID for swap partition:

Code:
# ls -l /dev/disk/by-uuid/
total 0
lrwxrwxrwx 1 root root 10 Dec 31 11:01 617b4b90-112e-497a-bc6b-dda2a3e7565e -> ../../sda2
lrwxrwxrwx 1 root root 10 Dec 31 11:01 6ede6345-3ef5-4cb1-9cce-b8583cf263cf -> ../../sda4
lrwxrwxrwx 1 root root 10 Dec 31 11:01 ae703248-438e-46ca-9935-8800fb3c9536 -> ../../sda1

# /lib/udev/vol_id /dev/sda3
ID_FS_USAGE=other
ID_FS_TYPE=swap
ID_FS_VERSION=2
ID_FS_UUID=
ID_FS_LABEL=swap1
ID_FS_LABEL_SAFE=swap1

In previus versions of mkswap, in CentOS 4, I solved this problem re-formating the partition with "mkswap"...

Regards,
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Swap Partition Space

first of all, sorry about my english...I´m a spanish newbie to this marvelous OS and i have just a couple of doubts...u know? :-) 1) how big should my swap partition be if i installed debian 2.2r3 or FreeBSD 4.x on a AMD k7 1400Mhz with 512Mb of Random Access Memory? i heard that those OS... (1 Reply)
Discussion started by: I[X]ION
1 Replies

2. UNIX for Dummies Questions & Answers

Linux Swap Partition

How big do I set the swap partition when i'm setting up my hard drive to install RedHat. (Using Partition Magic) thanks! primal (2 Replies)
Discussion started by: primal
2 Replies

3. UNIX for Dummies Questions & Answers

Linux/Windows Fat32 Swap partition.

I run a dual boot WinXP/Red Hat 8 system on my laptop. Since my hard drive is inherently small(laptop) I am trying to creat a swap partition for keeping mutually used files such as music/video etc... I have created a 2.5GB Fat32 partition with Partition Magic Pro and have windows recognizing the... (2 Replies)
Discussion started by: djtrippin
2 Replies

4. Linux

swap partition?

What does a swap partition do exactly? I was messing arround with a linux machine at my school and i deleted the swap partition using fdisk and then rebooted the machine and it worked fine and wrote a swap partition back in...lol. Is it a nessary part of the OS to use that partition? (7 Replies)
Discussion started by: byblyk
7 Replies

5. Solaris

swap partition showing mounted in df -h

Dear All Anyone can help me what is the problem of swap partition? swap partition is showing mounted in df -h command output. Regards prakash (1 Reply)
Discussion started by: pshelke
1 Replies

6. Filesystems, Disks and Memory

Partition 1 swap not mounting ?

Hi, running mount, I get the following, no part1 swap as part1 swap has been created and is listed below. System works fine anyway. As I cannot unmount part1, what is a standard procedure to make part1 on. Jack ============= .. $ free total used free shared buffers cached Mem:... (2 Replies)
Discussion started by: jack2
2 Replies

7. UNIX for Advanced & Expert Users

Generate UUID for a host

Hello Experts, Is there a way to generate Universally Unique identifiers on all Unix flavours such as Solaris, RHELinux,Suse Linux, MacOS,HP UX etc? If i can get a system command or a system call or an algorithm/script/program to generate a unique identifier, it will be helpful. Thanks in... (1 Reply)
Discussion started by: GajendraSharma
1 Replies

8. UNIX for Dummies Questions & Answers

Size of swap partition during installation

Greetings. I've been into computers since the '80s, but this is my first attempt at Linux. I'm installing Debian Lenny on a PIII 733 with 10GB hard drive and 512MB Ram. I intend to use the machine primarily as a development server, with things like mySQL, Apache, php, etc. I don't really want... (22 Replies)
Discussion started by: fguy
22 Replies

9. HP-UX

Could I mount a swap/dump partition on /tmp?

Hey Guys. Let show our disk-mapping structure on HP-UX B11.11 with df : # df /home (/dev/vg00/lvol5 ): 18979652 blocks 1224395 i /opt (/dev/vg00/lvol4 ): 120276192 blocks 1894100 i /var (/dev/vg00/lvol6 ): 19380328 blocks ... (3 Replies)
Discussion started by: aggadtech08
3 Replies

10. BSD

Find Partition/Slice UUID

I thought I had figured this out at one point, but I can't remember. Is there a way/command to get the UUIDs of a disk's partitions/slices in FreeBSD? Linux has the blkid command, which doesn't seem to be available. (2 Replies)
Discussion started by: AntumDeluge
2 Replies
SWAPLABEL(8)						     Linux Programmer's Manual						      SWAPLABEL(8)

NAME
swaplabel - Print or change the label / UUID of a swap area SYNOPSIS
swaplabel [-L label] [-U UUID] device DESCRIPTION
swaplabel will display or change the label / UUID of a swap partition located on device (or regular file). If the optional arguments -L and -U are not present, swaplabel will simply display the swap area label and UUID of device. If an optional argument is present, then swaplabel will change the appropriate value of device. These values can also be set during swap creation using mkswap(8). The swaplabel utility allows to change the label or UUID on actively used swap device. OPTIONS
-h, --help Print help and exit. -L, --label label Specify a new label for device. Swap partition labels can be at most 16 characters long. If label is longer than 16 characters, swapinfo will truncate it and print a warning message. -U, --uuid uuid Specify a new UUID for device. UUID must be in the standard 8-4-4-4-12 character format, such as is output by uuidgen(1). AUTHOR
swaplabel was written by Jason Borden <jborden@bluehost.com> and Karel Zak <kzak@redhat.com>. AVAILABILITY
swaplabel is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. SEE ALSO
mkswap(8), swapon(8), uuidgen(1) Linux 2 April 2010 SWAPLABEL(8)
All times are GMT -4. The time now is 06:43 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy