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#1 2008-10-20 22:43:25
- djseomun
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- From: Durham, NC
- Registered: 2008-10-19
- Posts: 35
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Non-unique UUIDs for persistent block device naming?
SYMPTOMS
When I tried to install Overlord, I opened a virtual console while editting /etc/fstab and typed
ls -lF /dev/disk/by-uuidHowever, with the exception of my /home partition (that I carried over from Ubuntu), the UUIDs for / and swap were different than the UUIDs that were inserted into the /etc/fstab file.
After reading the wiki, I was under the impression that the biggest benefit of UUID is its uniqueness.
Why is it that the UUIDs are non-unique for two of my partitions?
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#2 2008-10-21 00:46:04
- creslin
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- Registered: 2008-10-04
- Posts: 241
Re: Non-unique UUIDs for persistent block device naming?
It's persistent through reboots, not through reformatting. The usefulness of UUID comes when you have multiple disk controllers. Since their ordering is random at each boot, "sda" could refer to different disks per boot. This where the persistency of UUID applies.
Last edited by creslin (2008-10-21 00:47:46)
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