How to give UUID to a swap partition?


 
Thread Tools Search this Thread
Operating Systems Linux How to give UUID to a swap partition?
# 1  
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,
# 2  
Old 01-02-2008
Any ideas? Thanks!!
# 3  
Old 01-03-2008
The swap partiotion has no uuid. Check this:

[root@sirim ~]# cat /etc/fstab | grep -i swap
LABEL=SWAP-sda3 swap swap defaults 0 0

[root@sirim ~]# findfs LABEL=SWAP-sda3
/dev/sda3

[root@sirim ~]# hal-device | grep sda3 -A 9
9: udi = '/org/freedesktop/Hal/devices/volume_label_SWAP_sda3'
volume.ignore = true (bool)
info.udi = '/org/freedesktop/Hal/devices/volume_label_SWAP_sda3' (string)
volume.partition.flags = { } (string list)
volume.partition.uuid = '' (string)
volume.partition.label = '' (string)
volume.partition.type = '0x82' (string)
volume.partition.scheme = 'mbr' (string)
info.product = 'SWAP-sda3' (string)
volume.partition.media_size = 60011642880 (0xdf8f90000) (uint64)
volume.partition.start = 58934131200 (0xdb8bf7a00) (uint64)
volume.size = 1077511680 (0x40398600) (uint64)
volume.num_blocks = 2104515 (0x201cc3) (int)
volume.block_size = 512 (0x200) (int)
volume.partition.number = 3 (0x3) (int)
info.capabilities = { 'volume', 'block' } (string list)
info.category = 'volume' (string)
volume.is_partition = true (bool)
# 4  
Old 01-09-2008
Dear lechuga,

Thanks for your reply ;-)

Regards,
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. 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

2. 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. 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
Login or Register to Ask a Question