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Bug 520788 - sys-kernel/genkernel - "udevadm trigger" neccessary to display volumes after booting LVM on top of LUKS
Summary: sys-kernel/genkernel - "udevadm trigger" neccessary to display volumes after ...
Status: RESOLVED DUPLICATE of bug 390079
Alias: None
Product: Gentoo Hosted Projects
Classification: Unclassified
Component: genkernel (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Genkernel Maintainers
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Reported: 2014-08-24 19:43 UTC by Dimitrios Semitsoglou-Tsiapos
Modified: 2015-08-20 16:10 UTC (History)
1 user (show)

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Description Dimitrios Semitsoglou-Tsiapos 2014-08-24 19:43:40 UTC 
On a system that has root and swap on LVM ontop of LUKS inside a physical partition, lvm-related commands (`vgdisplay`, `vgchange -a y`) report "No volume groups found", although the LVs are present under /dev/mapper. The issue is resolved after running `udevadm trigger`, or, more specifically, `udevadm trigger --attr-match=dev`.

The kernel APPEND line is the following:
root=/dev/mapper/vgg-root crypt_root=/dev/sda2 swap=/dev/mapper/vgg-swap dolvm

Reproducible: Always
Comment 1 Rick Farina (Zero_Chaos) gentoo-dev 2015-08-20 16:10:00 UTC 

*** This bug has been marked as a duplicate of bug 390079 ***