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Re: [Xen-devel] [PATCH] build: save generated config in /boot



On 21/12/15 12:11, Jan Beulich wrote:
>>>> On 18.12.15 at 22:35, <cardoe@xxxxxxxxxx> wrote:
>> Since we now support changing Xen options with Kconfig, we should save
>> the configuration that was used to build up Xen. This will save it in
>> /boot alongside the installed xen.gz and call it
>> xen-$(FULLVERSION).config
>>
>> Suggested-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
>> Signed-off-by: Doug Goldstein <cardoe@xxxxxxxxxx>
>> ---
>>  xen/Makefile | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/xen/Makefile b/xen/Makefile
>> index 9023863..460b977 100644
>> --- a/xen/Makefile
>> +++ b/xen/Makefile
>> @@ -58,6 +58,7 @@ _install: $(TARGET)$(CONFIG_XEN_INSTALL_SUFFIX)
>>      ln -f -s $(T)-$(XEN_FULLVERSION)$(Z) $(D)$(BOOT_DIR)/$(T)$(Z)
>>      [ -d "$(D)$(DEBUG_DIR)" ] || $(INSTALL_DIR) $(D)$(DEBUG_DIR)
>>      $(INSTALL_DATA) $(TARGET)-syms 
>> $(D)$(DEBUG_DIR)/$(T)-syms-$(XEN_FULLVERSION)
>> +    $(INSTALL_DATA) $(KCONFIG_CONFIG) 
>> $(D)$(BOOT_DIR)/$(T)-$(XEN_FULLVERSION).config
> Was it really suggested to put this into /boot? It has no business
> being there...

A typical Linux has:

andrewcoop@andrewcoop:/local/xen.git/xen$ ls -lA /boot/
total 21044
-rw-r--r--  1 root root   157726 Dec 15 15:40 config-3.16.0-4-amd64
drwxr-xr-x  5 root root     4096 Dec 18 07:53 grub
-rw-r--r--  1 root root 15535038 Dec 18 07:52 initrd.img-3.16.0-4-amd64
drwx------  2 root root    16384 Oct 19 11:11 lost+found
-rw-r--r--  1 root root  2676277 Dec 15 15:40 System.map-3.16.0-4-amd64
-rw-r--r--  1 root root  3118928 Dec 15 15:37 vmlinuz-3.16.0-4-amd64

which at the very least is consistent between Debian and RHEL derivatives.

IMO, doing the same for Xen is sensible.

~Andrew

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