/srv/irclogs.ubuntu.com/2013/03/06/#ubuntu-arm.txt

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xnoxogra_: are you around?12:13
davmor2xnox: No I'd say ogra_ was more oblong ish12:20
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ogra_xnox, i'm here now13:55
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Tassadarchm, that's weird, I'm getting crc error when trying to extract rootfs.tar.gz in Nexus 7's daily image Oo17:06
Tassadarogra_: has the way nexus 7 image is built changed lately?17:17
ogra_nope17:17
Tassadarthen what the hell am I doing wrong Oo17:27
ogra_i'll take a deeper look after UDS tomorrow or friday17:28
Tassadarokay, thanks17:29
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Kris_CGoI figure this would be the best place to ask(since people develop on desktop for ES2 devices all the time): What's an easy way to use OpenGL ES2 on ARM and desktop? What OGL version does the desktop need to be to do ES2, 3.0? I'm from the land of OGL1 and D3D9...19:01
NekoXPthe *easiest* way? install the EGL/GLES2 packages for Mesa and use llvmpipe as the backend.. that is slow as poop, but it'd work.19:12
NekoXPmost of the desktop composition engines like Compiz use ES2 right now, there's not a good deal of point using ES3.. all it adds is (guaranteed) higher precision shader support and a few extra useful functions that already exist in most ES2 implementations19:13
Kris_CGoWell my computer is fast and mobile things are slow... so in a way that works out. I guess I'll stick with ES2 only since a lot doesn't support ES3.19:14
Kris_CGoFound mesa-utils-extra , has es2gears, es2_info and es2tri in it , yay it "just werks" I get 850 fps instead of 4800 fps, plenty usable19:33
NekoXPanyone here used cdebootstrap --foreign and then something like schroot to get into the filesystem and continue emulated under qemu?20:19
ogra_why would we ? there are way better tools (qemu-debootstrap from qemu-user-static)20:20
NekoXPwell, I have my reservations about qemu-debootstrap as it stands (I usually opencode what it does in a more efficient way, derived from how schroot manages it...)20:24
NekoXPI don't like running a VM to do the work, I'd rather do it in a chroot.. and cdebootstrap handles some things slightly better. it's mostly an experiment but the damn thing keels over if you use --foreign for some reason.20:25
ogra_what VM ?20:26
ogra_it sets up your kernel via binfmt support to be able to execute armhf binaries and then just bootstraps n armhf chroot20:26
NekoXPqemu VM.. like build a disk image, run a "real" kernel, then tar up what's inside the disk image kind of thing. Like rootstock did before it got the ability to chroot ;)20:26
ogra_nothing to do with VMs20:27
ogra_it just gives youz are dir you can chroot into20:27
NekoXPbtw qemu-debootstrap is about 160 lines too long for what it does20:28
ogra_complain to debian :)20:28
ogra_the original i wrote was like 4 lines20:28
ogra_when they took it they bloated it20:28
NekoXPloic seemed to get hold of it. he wasn't "debian" when he did that ;)20:29
ogra_well, whatever :)20:29
ogra_he pushed it to debian20:29
ogra_(saving us the maintenance ... so i'm fine with a 160 line overhead)20:29
NekoXPanyway regardless, it's not the copying of the qemu binary into the right place I have a problem with it's that cdebootstrap doesn't seem to work.. probably because nobody uses it. If I do it all native it has a real and measurable performance advantage.. but all the docs say "do --foreign and then run that output on a real system"20:31
NekoXPproblem is that second step fails by going in via qemu-enabled chroot  AND on a real native system20:31
ogra_well, i doubt anyone in ubuntu uses it20:32
ogra_so better complain to debian20:32
NekoXPI can't imagine it is totally broken because live-build uses it20:32
NekoXPI guess I'll go ask the debian guys :)20:32
NekoXPbtw what's the status on rootstock, I thought it was dead as a doornail but it seems semi-actively developed (there's a GUI!?)20:33
ogra_rootstock is long dead20:33
ogra_like 2 years or so20:33
NekoXPcode committed to bzr in 2012 though.. I know you don't touch it anymore I wondered if it was sanctioned or just some guys poking at the old code20:34
ogra_i think vanhoof keeps it in zombie state still20:35
ogra_i handed it over to him after it was largely unmaintained for a year20:35

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