* Andre McCurdy <armccu...@gmail.com> [151103 11:34]: > On Mon, Nov 2, 2015 at 11:05 PM, Anders Darander <and...@chargestorm.se> > wrote: > > * Andre McCurdy <armccu...@gmail.com> [151102 20:35]:
> >> See the "IMAGE_TYPES" variable for a list of rootfs types which are > >> supported. There's support for creating an uncompressed .tar file, but > >> I don't see any support for creating a rootfs directory under > >> tmp/deploy. > > No, the usual workflow here is to unpack the tar'ed rootfs at a suitable > > location. > Indeed. I don't think it's what Roberto was asking for though... Well, sure, that wasn't what Roberto explicitly was asking for, though that's a safer way to do what he's after... After all, if you never learn about best practises, you'll never know... > >> Depending on your work flow there are a few different solutions > >> though. You could extend > >> openembedded-core/meta/classes/image_types.bbclass to do what you want > >> (e.g. define a new image type or hack "IMAGE_CMD_tar" so that it also > >> untars rootfs.tar right after creating it). > > Well, there's some issues with this approach. In order to uncompress the > > tarball and be able to set owner, group, and permissions on all files, > > you need to untar the rootfs with root privileges. The same is true when > > it comes to creating device nodes. > Enabling CONFIG_DEVTMPFS in the kernel is pretty standard, so for most > people there are no device nodes in the rootfs tarfile and /dev is an > empty directory. Sure, devtmpfs is pretty much standard, though it could nonetheless be good to know about. > Extracting rootfs tarfiles as an unprivileged user has always worked > fine for me. Do you have a specific example where root privileges are > required? Well, everything that requires a specific user and permissions. When it comes to permissions it's likely most if you need to setuid or setgid on binaries / files / directories. When you unpack as an unpriviliged user, every file will belong to you. Thus, the recommended (and safe) way to do this, is to unpack as a priviliged user. Cheers, Anders -- Anders Darander ChargeStorm AB / eStorm AB -- _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
