dpkg's admindir: /var/dpkg or /var/lib/dpkg?

dpkg's admindir: /var/dpkg or /var/lib/dpkg?

[Cui, Dexuan]

Hi, I happened to find a bug: in target,  "dpkg --list" shows "dpkg-query: failed to open package info file `/var/lib/dpkg/status' for reading: No such file or directory"

Actually the files(status and available) does exist, but not in /var/lib/dpkg/ -- they're in /var/dpkg/. "ln -s /var/dpkg/{status, available} /var/lib/dpkg" can resolve the issue.

grepping '/var/dpkg' shows there are many files(package_deb.bbclass, rootfs_deb.bbclass, populate_sdk_deb.bbclas, apt.conf ) in which '/var/dpkg' is used and /var/lib/dpkg is not used at all.

However, looks dpkg's default admindir is /var/lib/dpkg -- e.g., Ubuntu uses this.

What should we do? Looks fixing the package dpkg's admindir in the do_configure needs the least coding.

Thanks,
-- Dexuan
 

Re: dpkg's admindir: /var/dpkg or /var/lib/dpkg?

[Mark Hatle]

On 5/18/11 4:27 AM, Cui, Dexuan wrote:
> Hi, I happened to find a bug: in target,  "dpkg --list" shows "dpkg-query: failed to open package info file `/var/lib/dpkg/status' for reading: No such file or directory"
> 
> Actually the files(status and available) does exist, but not in /var/lib/dpkg/ -- they're in /var/dpkg/. "ln -s /var/dpkg/{status, available} /var/lib/dpkg" can resolve the issue.
> 
> grepping '/var/dpkg' shows there are many files(package_deb.bbclass, rootfs_deb.bbclass, populate_sdk_deb.bbclas, apt.conf ) in which '/var/dpkg' is used and /var/lib/dpkg is not used at all.
> 
> However, looks dpkg's default admindir is /var/lib/dpkg -- e.g., Ubuntu uses this.
> 
> What should we do? Looks fixing the package dpkg's admindir in the do_configure needs the least coding.

I would say that /var/lib/dpkg is the "correct" directory to use.  This matches
the behavior on other deb bases systems.  (It also mimics other pkg managers who
place their data into /var/lib/...)

--Mark

> Thanks,
> -- Dexuan
>  
> 
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Re: dpkg's admindir: /var/dpkg or /var/lib/dpkg?

[Cui, Dexuan]

Mark Hatle wrote:
> On 5/18/11 4:27 AM, Cui, Dexuan wrote:
>> Hi, I happened to find a bug: in target,  "dpkg --list" shows
>> "dpkg-query: failed to open package info file `/var/lib/dpkg/status'
>> for reading: No such file or directory"  
>> 
>> Actually the files(status and available) does exist, but not in
>> /var/lib/dpkg/ -- they're in /var/dpkg/. "ln -s /var/dpkg/{status,
>> available} /var/lib/dpkg" can resolve the issue.  
>> 
>> grepping '/var/dpkg' shows there are many files(package_deb.bbclass,
>> rootfs_deb.bbclass, populate_sdk_deb.bbclas, apt.conf ) in which
>> '/var/dpkg' is used and /var/lib/dpkg is not used at all.  
>> 
>> However, looks dpkg's default admindir is /var/lib/dpkg -- e.g.,
>> Ubuntu uses this. 
>> 
>> What should we do? Looks fixing the package dpkg's admindir in the
>> do_configure needs the least coding. 
> 
> I would say that /var/lib/dpkg is the "correct" directory to use. 
> This matches the behavior on other deb bases systems.  (It also
> mimics other pkg managers who place their data into /var/lib/...)
> 
Mark, thank you for the comment!
So looks we should fix any recipe that uses /var/dpkg?

The fact in poky /var/dpkg is widely used and /var/lib/dpkg is not used at all may imply we chose /var/dpkg for some reason?  Even meta/recipes-devtools/dpkg/run-postinsts/run-postinsts and meta/recipes-devtools/dpkg/run-postinsts/run-postinsts.awk use /var/dpkg.

Is it possible there is some story behind this?  Please let me Cc more people who touched this.

Thanks,
-- Dexuan