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

[Feizhou]

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.