Red Hat Bugzilla – Bug 186439
Anaconda mishandles LVM LV names with -'s in them.
Last modified: 2008-01-30 09:58:04 EST
Description of problem: Installing into an LV with a - in its name causes anaconda to crash with an exception stating that it can't find the LV name. For an LV named name1-name2 on a VG named 'VG', the name it states its looking for is /dev/mapper/VG-name1-name2. For LV names with -'s in them, the name in the mapper directory will be VG-name1--name2. Version-Release number of selected component (if applicable): The version that shows up on the FC5 installation CD. How reproducible: Every time Steps to Reproduce: 1.Create some LVs with -'s in their names 2.Try to install Fedora Core 5 with some partitions on those LVs 3.Watch Fedore Core 5 anaconda crash Actual results: Anaconda throws an exception Expected results: The installation proceeding normally Additional info:
anaconda disallows a - in the LV or VG name, so this is only a problem for preexisting ones.
That means that Anaconda should be fixed to allow LV names with a '-' in them. :-)
For now the idea is to avoid crashes. There are two possibilities: To tell the user that the lv or vg name with the '-' character is not accepted. Or to replace the character. FIRST OPTION: --- ../FC-D/kickstart.py 2007-03-08 19:43:45.000000000 +0100 +++ kickstart.py 2007-03-16 19:00:50.000000000 +0100 @@ -257,6 +257,9 @@ elif (lvd.percent <= 0 or lvd.percent > 100) and not lvd.preexist: raise KickstartValueError, formatErrorMsg(self.lineno, msg="Percentage must be between 0 and 100") + if "-" in lvd.name: + raise KickstartValueError, formatErrorMsg(self.lineno, msg="The '-' character must not be used in logical volume names.") + request = partRequests.LogicalVolumeRequestSpec(filesystem, format = lvd.format, mountpoint = lvd.mountpoint, @@ -605,6 +608,9 @@ if vgd.pesize not in lvm.getPossiblePhysicalExtents(floor=1024): raise KickstartValueError, formatErrorMsg(self.lineno, msg="Volume group specified invalid pesize") + if "-" in vgd.vgname: + raise KickstartValueError, formatErrorMsg(self.lineno, msg="The '-' character must not be used in volume group names.") + # get a sort of hackish id uniqueID = self.handler.ksID self.handler.ksVGMapping[vgd.vgname] = uniqueID SECOND OPTION: --- ../FC-D/kickstart.py 2007-03-08 19:43:45.000000000 +0100 +++ kickstart.py 2007-03-16 19:07:40.000000000 +0100 @@ -257,6 +257,11 @@ elif (lvd.percent <= 0 or lvd.percent > 100) and not lvd.preexist: raise KickstartValueError, formatErrorMsg(self.lineno, msg="Percentage must be between 0 and 100") + if "-" in lvd.name: + #We can also change it and not fail. + lvd.name.replace("-","t") + + request = partRequests.LogicalVolumeRequestSpec(filesystem, format = lvd.format, mountpoint = lvd.mountpoint, @@ -610,6 +615,10 @@ self.handler.ksVGMapping[vgd.vgname] = uniqueID self.handler.ksID += 1 + if "-" in vgd.vgname: + #We can also change it and not fail. + vgd.vgname.replace("-","t") + request = partRequests.VolumeGroupRequestSpec(vgname = vgd.vgname, physvols = pvs, preexist = vgd.preexist,
This is great, except I have LV names already that have -'s in them. Right now what I have to do is hand-edit the fstab file after installation to make them show up in the right place. I'd prefer not to have to do that.
I had misunderstood the exact situation. The mishandling of the LVM names happens not only with new kickstart names but also can happen with inside the partition gui with preexisting lvm structures. With this in mind I propose another patch that informs the user instead of spitting out an ugly trace back. The problem is not fixed but anaconda does not die if this situation presents itself. FYI Im working on FC7. The diff is attached.
Created attachment 151023 [details] partitions.py diff It doesn't solve the proble but it avoids an ugly trace back when the situation presents itself.
Created attachment 151045 [details] patch trying to solve issue with "-" in lvm names It worked for all my test cases. I tried to install using kickstart, there seemed to be no problem. I tried with kickstart and the installation ended smoothly as well. I tested for logical volumes and volume groups that had ht "-" character in there names.
*** Bug 250409 has been marked as a duplicate of this bug. ***
On a related note: the lv-config GUI in anaconda does not allow - in the name, system-config-lvm and lvcreate do. All of these should match so that this isn't a problem later. We have somebody who creates a standard naming scheme for our servers based on what he sets up with lvcreate... then we can't conform to that naming scheme using anaconda's lvm configurator.
*** Bug 407701 has been marked as a duplicate of this bug. ***