All of what OE produces goes in tmp, so it that sense it can be conveniently deleted
w/o affecting your saved configurations, etc.  However, as Bob notes you
probably want to keep at least images around, if not all of tmp/deploy.  Also,
please be careful if you are using tmp/work/ to develop/modify kernels, etc.
Easy to delete work that way.

If you are not doing anything in tmp/work, one space-saver is to add:

INHERIT += "rm_work"

to your local configuration (in openembedded/conf/local.conf)
This nukes portions of the various tmp/work/_architecture_/package_name) directories as they are built.
(for example, from an older build I have:  tmp/work/armv7a-oe-linux-gnueabi/gcc-cross-4.4.1-r8.1
which is occupying 1.6G of space!  Unless I am working on/patching gcc, no need to keep it around)




On Tue, Jan 11, 2011 at 8:06 AM, Bob Cochran <bcochran13@verizon.net> wrote:
On 01/10/2011 11:01 PM, Alex Gibson wrote:
> On 11/01/2011 2:41 PM, Bob Cochran wrote:
>>> cd /home/alxx/overo-oe/
>>> rm -rf /tmp
>> That deletes the contents of /tmp, not ~/overo-oe/tmp
>>
>> Did you mean
>>
>> rm -rf tmp
>>
> doh
>
> yes.

Bill, I suggest being very cautious about deleting tmp because the
images you have built to date are in
tmp/deploy/glibc/glibc/images/overo. You could back up those images
somewhere. I don't have enough experience with OpenEmbedded and BitBake
to judge the real effect of deleting all of tmp in order to save space
on a backup.

If my living depended on it, I would be doing weekly clones of my OS and
build environment to external hard drives and separate incremental
backups daily. But my living doesn't depend on OpenEmbedded, so I don't
do any backups for myself. I'm just tinkering for the moment. I am,
however, seriously thinking of getting a 2 Tb hard drive so I can do
oodles of builds and thereby experiment with my Gumstix hardware.

Only you can decide how important a backup is to you. If you want to
back up, then by all means do so.

Bob



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