AW: Re: AW: Re: ext3 Filessyten in FC5-Test incompatible with other FC or RHEL versions

[Günter Schmidt]

Dr. Günter Schmidt wrote:

>>On Thu, 2005-12-22 at 21:18 -0500, Dave Jones wrote:
>>    
>>
>>>On Thu, Dec 22, 2005 at 03:31:03PM +0100, Arjan van de Ven wrote:
>>> > On Thu, 2005-12-22 at 14:47 +0100, gsc.news at online.de wrote:
>>> > > >If I recall, there was a change in the ext2 utilities from FC3 to FC4 
>>>      
>>>
>>> > > >which fsils with earlier distro created partitions.
>>> > > >
>>> > > >I believe you need to disable filechecking with the entries in your 
>>> > > >fstab  file. That is, change the last two digits in your older distros 
>>>      
>>>
>>> > > >to zero.
>>> > > >Alternatively, you could mount the other OS partitions whenever you 
>>>      
>>>
>>need 
>>    
>>
>>> > > >to access the files on the common partitions..
>>> > > >
>>> > > >Are you talking about a common /home partition?
>>> > > 
>>> > > Yes, and therefore, I can't use my privous installations anymore.
>>> > 
>>> > that sounds nasty; maybe fedora should turn off MLS for now until
>>> > there's a better compatibility?
>>>
>>>The latest FC4 update kernel can read MLS labelled filesystems without 
>>>      
>>>
>>problem.
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>>
>>>I've not checked FC3, that one might be a little more tricky, as the compat 
>>>      
>>>
>>code
>>    
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>>>requires changes that have happened post 2.6.12 (where FC3 is currently 
>>>      
>>>
>>sat).
>>    
>>
>>>Given the effort required to make that work, the limited time remaining in 
>>>      
>>>
>>the
>>    
>>
>>>FC3 lifetime, and the low general appeal of such a feature, it probably 
>>>      
>>>
>>won't
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>>>get fixed
>>>      
>>>
>>given that even RHEL4 can't get compatibility code.. why go through this
>>pain in the first place? Is MLS a compelling enough feature for fedora
>>to go through this pain? Is it even used for something or by someone in
>>the first place?
>>    
>>
>
>This would also meen the upcomming RHEL5 (derived from FC5) will be incompatible
>with RHEL4 (derived from FC3) and RHLE3 (derived from RH9).
>
>The user friendly version would be not to change an existing partition during boot
>time without a warning.
>
>As current solution I can only backup my boot and home partitions, format them
>under centos4, restore the data and forget FC5.
>
>  
>
In the meantime I found out, that I have in Centos4 already a newer 
kernel (2.6.9-22.0.1.EL)
which allows the access to my /home and /boot partitions, but as the 
/boot was not accessible
while I did the 'up2date' the new kernel was not added to grub.conf. 
After manual add and reboot
I am back again in my 'normal system.

Thanks for all comments

Merry Christmas and a Happy new Year
Günter