[Bugme-new] [Bug 16516] New: LVM logical volumes do not have a drive geometry
bugzilla-daemon at bugzilla.kernel.org
bugzilla-daemon at bugzilla.kernel.org
Wed Aug 4 10:56:35 PDT 2010
https://bugzilla.kernel.org/show_bug.cgi?id=16516
Summary: LVM logical volumes do not have a drive geometry
Product: IO/Storage
Version: 2.5
Kernel Version: 2.6.32-24-generic (ubuntu)
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: LVM2/DM
AssignedTo: agk at redhat.com
ReportedBy: hadmut at danisch.de
Regression: No
Hi,
I am using KVM to run several virtual machines, where their virtual hard disks
are just LVM logical volumes. Partitions generated with fdisk or parted, using
kpartx to crossmount them from the host system for base installation. Using
either ext3/4+grub or msdos+syslinux to generate machines.
Unfortunately, I am running occasionally into file system problems, since the
linux kernel does not provide a disk geometry for these logical volumes. Most
tools try to guess a 255 heads, 63 sectors geometry, but not all tools, e.g.
qemu/lvm do support this ans sometimes assume a wrong geometry.
Would be nice and usefull if it was possible to just assign an arbitrary
geometry to a lvm volume just as if it was a physical disk.
regards
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