Re: [dmidecode] [PATCH] dmidecode: Add an -r option for rfc 4122

[Jean Delvare]

Hi Navin,

Le Thursday 21 May 2015 à 18:53 +0530, Navin P a écrit :
> Hi,
>    This patch adds an option for displaying uuid in rfc 4122 format
> but not the smbios format.
>     RFC 4122 format is used by kernel and lshal. In case they need

hal is essentially dead so whatever it does is not relevant.

The kernel is already supposed to be in sync with dmidecode, since v3.8
[1]. However there was a bug in this area of the kernel, which I just
fixed [2]. I suspect this is your actual problem.

[1]
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f1d8e614d74b09531b9a85e812485340f3df7b1c
[2]
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c1ac56b51b9d222ab202dec1ac2f4215346129d

> this format they have the option  of getting from -r option.Also this
> matches with kernel /sys/class/dmi/id/product_uuid

/sys/class/dmi/id/product_uuid *is* the kernel, so you are not adding
any information here.

> address@hidden:~/dmidecode/dmidecode$ sudo ./dmidecode -r |
> grep -i uuid
>         UUID: FF24355A-16B4-E411-91F9-1C545F06E0FF

FYI,
$ sudo ./dmidecode -s system-uuid
would be faster.

> address@hidden:~/dmidecode/dmidecode$ sudo ./dmidecode  | grep -i uuid
>         UUID: 5A3524FF-B416-11E4-91F9-1C545F06E0FF
> address@hidden:~/dmidecode/dmidecode$ sudo cat
> /sys/class/dmi/id/product_uuid
> FF24355A-16B4-E411-91F9-1C545F06E0FF
> (...)
> Attached the patch.
> Posting it inline as well.

Please backport the fix mentioned above to your kernel, and you'll be
fine.

-- 
Jean Delvare
SUSE L3 Support