Package: initramfs-tools
Followup-For: Bug #783620

Hi,

from the debian-user mailinglist ...

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Bernhard Schmidt <be...@birkenwald.de> wrote:                                   
                                                                                
                                                       
> Don Armstrong <d...@debian.org> wrote:                                        
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> Hi Don,                                                                       
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>>> has anyone observed something similar to                                    
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>>>                                                            
>>> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=783620 on their           
>>>                                                                             
>>>                                                            
>>> Upgrade from Wheezy to Jessie? I'm still trying to figure out what's        
>>>                                                                             
>>>                                                            
>>> happening, and I don't really know where to look.                           
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>>> I was unable to attach the screenshot so far (mail is accepted but          
>>>                                                                             
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>>> never makes it to the BTS), I've put the screenshot here:                   
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>>>                                                            
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>>> http://users.birkenwald.de/~berni/volatile/783620.png                       
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>>>                                                            
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>> Could you run something like this on the initrds?                            
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>> diff -u <( zcat workinginitrd) <( zcat brokeninitrd);                        
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>> It's possible that something has corrupted the initrds in some subtle        
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>> way, or some part of the cpio archive has been truncated which causes as     
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>> issue for the kernel but is ignored by cpio.                                 
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>>                                                           
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> lxmhs63:/boot$ diff -u <( zcat initrd.img-3.16.0-4-amd64 ) <(                 
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> zcat initrd.img-3.16.0-4-amd64.broken )                                       
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> Binary files /dev/fd/63 and /dev/fd/62 differ                                 
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> with -a it outputs a lot of difference in binary, I can't figure out          
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> anything there.                                                               
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> Since I could not find anything secret in the initrd I have uploaded          
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> both images                                                                   
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> http://users.birkenwald.de/~berni/volatile/783620_initrd_ok                   
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> http://users.birkenwald.de/~berni/volatile/783620_initrd_broken               
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>                                                          
                                                                                
                                                                                
                                                       
It is _not_ caused by the initrd per se, I have just rebooted the system        
                                                                                
                                                       
and edited the grub commands to load the .broken initrd, and it came up         
                                                                                
                                                       
fine.                                                                           
                                                                                
                                                       
                                                                                
                                                                                
                                                       
I will make a snapshot in the broken state the next time it happens,            
                                                                                
                                                       
maybe something else is broken. Except for update-initramfs I did not           
                                                                                
                                                       
run any command, but the system was fully booted on the Wheezy kernel,          
                                                                                
                                                       
maybe something else triggered a fix.                                           
                                                                                
                                                       
                                                                                
                                                                                
                                                       
I hope to upgrade a few more systems today, maybe I can reproduce it.           
                                                                                
                                                       
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