Description of problem: Udev does not create /dev/disk/by-uuid symlinks for block devices, that have a uuid that is displayed by blkid. Maybe the other symlinks (by-path, by-id, by-label) should be created, too. Especially by-label should be possible for block devices, that contain a filesystem. Version-Release number of selected component (if applicable): udev-118-1.fc8 How reproducible: always Steps to Reproduce 0. Use lvm and/or loop devices and use labels for some filesystems on these devices 1. run blkid 2. ls -la /dev/disk/by-uuid /dev/disk/by-label Actual results: blkid shows more block devices with UUID or LABEL information than there are links in /dev/disk/by-uuid Expected results: For all block devices that blkid can show a LABEL or UUID, udev should create a symlink in /dev/disk/by-{uuid,label} Additional info: It would be also nice to have the other symlinks created for such devices, e.g. /dev/disk/by-id, but I am not sure, whether there is a common naming scheme for such devices. I also noticed that these devices are currently ignored intentionally, but it is not explaned in the persistant-storage file, why this is the case, because these symlinks are also useful for such devices, e.g. when one uses encrypted devices with lvm.
This bug also exists with udev from the F10 Beta KDE Live CD.
kay? :)
LVM, and dm-* works here, but you miss the needed rules. The rules depend on a (not accepted in Fedora) export patch for dmsetup, which most other distros ship for a long time. With the recent release of dmsetup, it should be possible to implement theses rules without the export patch. Loopback is currently not implemented, as it there are currently no events to hook in to update the links after a mkfs and such.
Something like this should work without the --export option. It missed the DM_TARGET_TYPES the export patch does, but it might be already available in some way, or needs to be added to the current dmsetup. # dmsetup info -c --nameprefixes --unquoted --rows --noheadings -o name,uuid,suspended,readonly,major,minor,open,tables_loaded DM_NAME=xyz DM_UUID= DM_SUSPENDED=Active DM_READONLY=Writeable DM_MAJOR=253 DM_MINOR=0 DM_OPEN=0 DM_TABLES_LOADED=Live
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this is still true for F10. I upgraded F9 to F10 and F10 now has the uuid in the root= paramter in grub.conf. by default this is a LVM partition, and its uuid is not visible in /dev/disk/by-uuid
(In reply to comment #6) > this is still true for F10. > I upgraded F9 to F10 and F10 now has the uuid in the root= paramter in > grub.conf. by default this is a LVM partition, and its uuid is not visible in > /dev/disk/by-uuid I'm pretty sure, it is. There are part of the needed infrastructure provided by dmsetup now, but some things are still missing. Harald, Alasdair, can you please help getting the "dmesetup export" replacement working properly, Fedora is the only major distro who does not support this today.
harald, care to change the version to 10 please?
thanks
There is another bug about this: https://bugzilla.redhat.com/show_bug.cgi?id=438604
Still true in Rawhide AFAICS.
seems to be fixed in rawhide now (so should be ok for f12?)