Red Hat Bugzilla – Bug 189572
System hangs at boot because volume group for uuid not found
Last modified: 2007-11-30 17:11:31 EST
Description of problem: Volume group for uuid not found at boot. Consequently, the file system cannot be mounted leading the kernel to panic. Version-Release number of selected component (if applicable): 2.6.16-1.2147_FC6 How reproducible: Always. Steps to Reproduce: 1. Boot system. Actual results: System hangs when trying to mount the file system. First message issued is "Volume group for uuid not found". Further error messages are spawned until the kernel panics and the system hangs. Expected results: System should boot cleanly. Additional info: Happened first for version 2.6.16-1.2141_FC6 but still present for current rawhide kernel. Booting kernel 2.6.16-1.2136_FC6 lets the system boot cleanly.
downgrading to the devicemapper & lvm2 from FC5 and rebuilding the initrd (or reinstalling the kernel) makes this go away.
Maybe downgrading both packages in rawhide would be a suitable measure, right? As a matter of fact, "Volume group for uuid not found" is even issued for 2.6.16-1.2136_FC6 and possibly earlier kernels, but at least, the system does not hang afterwards.
I fixed this yesterday - only the lvm2 package is affected though you may need to regenerate initrd if it picked up a problematic lvm.static. Unfortunately the build system had a long queue and it wasn't possible to get a replacement package built yesterday:-(
OK, the package is now rebuilt except for s390/s390x. lvm2-2.02.05-1.1
System: PowerMac G4 with dual 533MHZ CPU's, SCSI drives ========================================================================= The problem persists after updating both lvm2 and device-mapper [22apr06]. As reported earlier the problem began when 2.6.16-1.2141_FC6 was released. I am wondering if some other package that used when building a kernel is the real culprit. Consider the following: (1) 09Apr06: build a kernel locally [2.6.15.6 9 (Tumbler-based sound works)] ==> all is well (2) 19Apr06: build a different version kernel locally [2.6.17-rc1-git13 (Tumbler-based sound does not work)] ==> all is well (3) 20-21apr06: update kernels 2.6.16-1.2141_FC6, 2.6.16-1.2147_FC6 ==> fail to boot * Volume group for uuid not found... (4) 20-21Apr06: rebuild the 2.6.15.6 kernel using up to date rawhide env ==> kernel fails to boot * unable to find device-mapper major/minor * reading all pyhsical volumes. this may take some time * found volume group "VolGroup00" using metadata ... * /proc/misc: no entry for device-mapper found ... (4) 23apr06: rebuild the 2.6.15.6 kernel locally using up to date rawhide env ==> kernel fails to boot -Joseph
Forgot to mention the relevant point... The kernels built locally on 09Apr and 19Apr *still* work. I am running one now. So... Whatever changed after 19Apr effects the static contents of vmlinux or some of its modules. -Joseph
Updated rawhide this morning bumping the kernel to version 2.6.16-1.2153_FC6. The problem has "gone away". -Joseph