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| 13:31.55 | GNUtoo-x60 | hi, is it possible to get a kernel+initramfs under 1.8M with the following capabilities: |
| 13:32.39 | GNUtoo-x60 | some sort of iwconfig, udhcpc, wget md5sum and kexec |
| 13:33.23 | GNUtoo-x60 | the target arch is x86 in 32bit |
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| 14:15.40 | gustavoz | GNUtoo-x60: maybe, have you tried? |
| 14:16.54 | gustavoz | kernel size is the biggest concern, depending on drivers and such |
| 14:18.27 | GNUtoo-x60 | gustavoz, yes and it's a bit more than 1.8M |
| 14:19.28 | GNUtoo-x60 | maybe busybox is too big also |
| 14:19.34 | GNUtoo-x60 | because I used static linking |
| 14:19.54 | GNUtoo-x60 | I wonder if dynamic linking to a well configured uclibc would give better results |
| 14:20.02 | gustavoz | GNUtoo-x60: well you can try static vs dynamic with all the same options and check the result, at some point dynamic is a better option (with more packages) |
| 14:20.26 | gustavoz | it's very package dependent though so you'll have to measure it up |
| 14:20.56 | GNUtoo-x60 | ok |
| 14:20.57 | GNUtoo-x60 | thanks a lot |
| 14:21.07 | gustavoz | out of curiosity are you using some build system or all by hand? |
| 14:21.20 | GNUtoo-x60 | by hand |
| 14:21.34 | GNUtoo-x60 | since there is only busybox for now.... |
| 14:21.44 | gustavoz | then remember to strip everything, with sstrip you'll get some extra savings |
| 14:22.04 | GNUtoo-x60 | ahh ok |
| 14:22.06 | gustavoz | and maybe use a higher compression method in the kernel binary |
| 14:22.06 | GNUtoo-x60 | thanks a lot |
| 14:22.15 | GNUtoo-x60 | it's at xz already |
| 14:22.49 | gustavoz | maybe you can use busybox hush (smaller than ash, but less features) too |
| 14:23.26 | gustavoz | and disable threads in uclibc if you didn't already |
| 14:23.54 | GNUtoo-x60 | I used static linking, not to uclibc |
| 14:23.58 | GNUtoo-x60 | to glibc.... |
| 14:24.06 | GNUtoo-x60 | I'll use a build system |
| 14:24.11 | gustavoz | oh, you'll get big savings with uclibc then |
| 14:24.25 | gustavoz | binary size full libc is like 1.8 MB vs 300 KB |
| 14:24.53 | gustavoz | you can also trim a lot of unused/old/compatibility stuff in uclibc to make it even smaller |
| 14:25.31 | GNUtoo-x60 | ok |
| 14:25.36 | GNUtoo-x60 | wow |
| 14:25.40 | GNUtoo-x60 | thanks a lot |
| 14:25.54 | gustavoz | i'm quite biased being a contributor, you can try using buildroot, it'll make your life quite simple for those use cases |
| 14:28.58 | GNUtoo-x60 | ok |
| 14:29.02 | GNUtoo-x60 | or openwrt? |
| 14:29.28 | GNUtoo-x60 | openembedded could work too but it's not suited for such use cases |
| 14:29.56 | gustavoz | openwrt is also an option, it's an old fork of buildroot that continued development on it's own path |
| 14:31.15 | gustavoz | where openwrt handles packages buildroot does not, you could say openwrt is more focused on users of the target "firmware" where buildroot is more suited to self-contained |
| 14:31.48 | gustavoz | "packages" in an installable afterwards kind of sense, like rpm, aptitude, so on |
| 14:34.25 | GNUtoo-x60 | yes like ipk |
| 14:50.26 | gustavoz | GNUtoo-x60: stripped non-threads uClibc libc library is ~ 190 kB |
| 14:53.20 | gustavoz | GNUtoo-x60: lzma rootfs.cpio ends up being ~ 500 kB with a buildroot build of busybox (default config so somewhat biggie), kexec-tools and wireless-tools |
| 14:53.34 | gustavoz | dynamic uclibc |
| 14:55.20 | GNUtoo-x60 | wow |
| 14:55.22 | GNUtoo-x60 | thanks a lot |
| 14:56.38 | gustavoz | i was curious, for the kernel i've used i386_defconfig so that kills it, but as you know a lot can be saved there by tweaking |
| 14:59.31 | GNUtoo-x60 | yes |
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| 19:03.15 | spidercaleb | Does anyone here know much about aufs? |
| 19:08.47 | gustavoz | how much? |
| 19:16.16 | spidercaleb | Well, I'm trying to use a directory with colons in it's name as a branch |
| 19:16.32 | spidercaleb | *its |
| 19:17.08 | spidercaleb | It doesn't work in quotes or with the colons escaped |
| 19:17.28 | gustavoz | never tried that with aufs, i usually use overlayfs these days since they don't require special tools, let me try if it works |
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| 19:20.48 | gustavoz | mount doesn't seem to be very happy about it |
| 19:21.45 | spidercaleb | Specifically, I'm trying to switch_root onto an aufs with a base read-only NFS root and a folder named after the node's MAC address on another NFS share as a rw branch |
| 19:21.53 | spidercaleb | If that makes any sense |
| 19:21.56 | gustavoz | my fault, it worked like a charm with busybox mount + overlayfs |
| 19:22.45 | gustavoz | don't know the exact details of what you want to achieve, but yeah, it can make sense |
| 19:23.52 | gustavoz | i did a simple mount -t overlayfs over -olowerdir=/etc,upperdir=/tmp/hi:there /tmp/etet with /etc being RO flash, /tmp/hi:there being an sdcard (ext4) and /tmp/etet being an empty dir |
| 19:24.12 | gustavoz | so maybe blame aufs tools :) |
| 19:24.17 | spidercaleb | A root for cluster nodes that supports configurations that apply to all, a group of nodes, or a single node |
| 19:24.44 | spidercaleb | But the server does all the grouping |
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