[CentOS] anaconda in centOS 4 fails to read md raid arrays

[Johnny Hughes]

On Tue, 2005-06-07 at 15:12 +0800, Feizhou wrote:
> Johnny Hughes wrote:
> > On Mon, 2005-06-06 at 05:35 -0500, Johnny Hughes wrote:
> > 
> >>On Mon, 2005-06-06 at 16:05 +0800, Feizhou wrote:
> >>
> >>>Has anybody encountered this problem?
> >>>
> >>>I have a box that has FC2 installed. I wanted to trash the FC2 
> >>>installation and install CentOS 4.
> >>>
> >>>I have a pxeboot/dhcp/kickstart environment and so I tried automatic 
> >>>disk partitioning (clear all partitions and then create new ones), 
> >>>manual disk partitioning but everything else is automated and finally, 
> >>>zero automation, just a manual installation through VNC.
> >>>
> >>>Once I reach a part that touchs disk, the process will stop and end up with:
> >>>
> >>>  Traceback (most recent call last):
> >>>   File "/var/tmp/anaconda-10.1.1.13//usr/lib/anaconda/gui.py", line 
> >>>789, in nextClicked
> >>>     self.dispatch.gotoNext()
> >>>   File "/var/tmp/anaconda-10.1.1.13//usr/lib/anaconda/dispatch.py", 
> >>>line 171, in gotoNext
> >>>     self.moveStep()
> >>>   File "/var/tmp/anaconda-10.1.1.13//usr/lib/anaconda/dispatch.py", 
> >>>line 239, in moveStep
> >>>     rc = apply(func, self.bindArgs(args))
> >>>   File "/var/tmp/anaconda-10.1.1.13//usr/lib/anaconda/partitioning.py", 
> >>>line 54, in partitionObjectsInitialize
> >>>     partitions.setFromDisk(diskset)
> >>>   File "/var/tmp/anaconda-10.1.1.13//usr/lib/anaconda/partitions.py", 
> >>>line 140, in setFromDisk
> >>>     diskset.startAllRaid()
> >>>   File "/var/tmp/anaconda-10.1.1.13//usr/lib/anaconda/partedUtils.py", 
> >>>line 542, in startAllRaid
> >>>     DiskSet.mdList.extend(raid.startAllRaid(driveList))
> >>>   File "/var/tmp/anaconda-10.1.1.13//usr/lib/anaconda/raid.py", line 
> >>>106, in startAllRaid
> >>>     mdList = scanForRaid(driveList)
> >>>   File "/var/tmp/anaconda-10.1.1.13//usr/lib/anaconda/raid.py", line 
> >>>56, in scanForRaid
> >>>     (major, minor, raidSet, level, nrDisks, totalDisks, mdMinor) =\
> >>>   File "/usr/lib/anaconda/isys.py", line 97, in raidsb
> >>>     return raidsbFromDevice("/tmp/md")
> >>>   File "/usr/lib/anaconda/isys.py", line 103, in raidsbFromDevice
> >>>     rc = _isys.getraidsb(fd)
> >>>SystemError: (5, 'Input/output error')
> >>
> >>I had a similar problem with a ppc install on RHEL. I think (but I am
> >>not 100% positive) that it is a LVM1 / LVM2 compatibility issue. 
> >>
> >>What I had to do was use fdisk and wipe the partitions and then I
> >>recreated them in anaconda using the raid and lvm tools in anaconda.  
> >>
> >>I have never actually had that problem on CentOS-4, but it is the same
> >>code, so I'm sure it happens in C4 too.
> >>_______________________________________________
> > 
> > 
> > BTW ... It might also be either this:
> > 
> > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=149220
> > 
> > or this
> > 
> > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=144827
> 
> No LVM. I therefore do not believe what I encountered is related to 
> those at all. The traceback is rather clear that this is a RAID related 
> issue.

If you tried the default partition install, it creates LVM volumes.
Which is why I suspected that it might be one of those two bugs.  I had
a similar issue with RHEL ppc that was also RAID only related, so it is
probably different.

We will have update one and a new version of anaconda very soon (after
upstream provider releases update 1) ... so maybe you can try with that
one after CentOS-4.1 is released.

If you can access the alt-f2 console, you can run fdisk manually.  I
don't know how to do that via VNC or a serial console though.
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