
coreboot™: fast, flexible and reproducible Open Source firmware!
Reproducible Coreboot
Reproducible builds enable anyone to reproduce bit by bit identical binary packages from a given source, so that anyone can verify that a given binary derived from the source it was said to be derived. There is more information about reproducible builds on the Debian wiki and on https://reproducible-builds.org. These pages explain in more depth why this is useful, what common issues exist and which workarounds and solutions are known.
Reproducible Coreboot is an effort to apply this to coreboot. Thus each coreboot.rom is build twice (without payloads), with a few variations added and then those two ROMs are compared using diffoscope. Please note that the toolchain is not varied at all as the rebuild happens on exactly the same system. More variations are expected to be seen in the wild.
There is a weekly run jenkins job to test the master
branch of coreboot.git. The jenkins job is running reproducible_coreboot.sh in a Debian environment and this script is solely responsible for creating this page. Feel invited to join #reproducible-builds
(on irc.oftc.net) to request job runs whenever sensible. Patches and other feedback are very much appreciated - if you want to help, please start by looking at the ToDo list for coreboot, you might find something easy to contribute.
Thanks to IONOS for donating the virtual machines this is running on!
106 (100.0%) out of 106 built coreboot images were reproducible in our test setup ! These tests were last run on 2025-02-07 for version 24.12-476-g0f3589b3d7 using diffoscope 287.
variation | first build | second build |
---|---|---|
hostname | osuosl1-amd64 or osuosl2-amd64 | the other one |
domainname | is not yet varied between rebuilds of coreboot. | |
env CAPTURE_ENVIRONMENT | not set | CAPTURE_ENVIRONMENT="I capture the environment" |
env TZ | TZ="/usr/share/zoneinfo/Etc/GMT+12" | TZ="/usr/share/zoneinfo/Etc/GMT-14" |
env LANG | LANG="en_GB.UTF-8" | LANG="et_EE.UTF-8" |
env LC_ALL | not set | LC_ALL="et_EE.UTF-8" |
env PATH | PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:" | PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" |
env USER | is not yet varied between rebuilds of coreboot. | |
uid | is not yet varied between rebuilds of coreboot. | |
gid | is not yet varied between rebuilds of coreboot. | |
UTS namespace | is not yet varied between rebuilds of coreboot. | |
kernel version, modified using /usr/bin/linux64 --uname-2.6 | Linux 6.12.9+bpo-amd64 | Linux 2.6.72+bpo-amd64 |
umask | 0022 | 0002 |
CPU type | AMD Opteron(tm) Processor 4284 | same for both builds |
/bin/sh | is not yet varied between rebuilds of coreboot. | |
year, month, date | today (2025-02-07) | same for both builds (currently, work in progress) |
hour, minute | hour and minute will probably vary between two builds... | the future system actually runs 398 days, 6 hours and 23 minutes ahead... |
Filesystem | tmpfs | same for both builds (currently, this could be varied using disorderfs) |
everything else... | is likely the same. There will be more variations in the wild. |
ARM_RDN2 (c7c55abc291673ff993e767903cd0056275cdeddf57c9f8fe7d941fe8c8bcde1, 64MiB) is reproducible.
EMULATION_QEMU_AARCH64 (c5cfa34c85a632d2a60dcc39a408815b560a69ac963323d74720d3792276dc2f, 16MiB) is reproducible.
EMULATION_QEMU_AARCH64_FIT_SUPPORT_TIMESTAMPS (5a0a8b1f2e268eb4b15ca882d97578c933f8412f68ef46a96983fb875515ee24, 16MiB) is reproducible.
EMULATION_QEMU_ARMV7 (7eb9293eab88d8fdac5690a2388ae8030ab73504c351897bf02d65d8e10019fb, 4MiB) is reproducible.
EMULATION_QEMU_RISCV_RV32 (7806c1ef5cfecabb04307e8a739b221fce3be32a4b95e50bdbf612192b481097, 32MiB) is reproducible.
EMULATION_QEMU_RISCV_RV64 (781954795ffffe92f8eee126b637b71d57773e1ecd04fddee6c49fd10bada96f, 32MiB) is reproducible.
EMULATION_QEMU_RISCV_RV64_ (d4f39433e3fe9b862057f4dcd44a3347ef490a23c173036a6211c084c85842f1, 32MiB) is reproducible.
EMULATION_QEMU_SBSA (92146a78e5b0b3585cc33a92a25308dac04a60a40ee22afaafcb533885b68461, 256MiB) is reproducible.
EMULATION_QEMU_X86_I440FX_X86_64 (a0b34f71f328c752b737c3e54e3e0723fcfddbe5f056d274ebfd3680cdc3291a, 4MiB) is reproducible.
EMULATION_SPIKE_RISCV (96323bc710936f8015f04062b0156e68c5d773fc0451038aa58c5c6a507c6ea3, 4MiB) is reproducible.
GOOGLE_ASURADA (06d60b8b091025c51b938921703e1739b676f839d4a550b9d7ae48a1878df9b0, 8MiB) is reproducible.
GOOGLE_BOB (6e06dae35d28b23426ec6c546d96be8f41e9b09ec6905e70841da3bed586dd06, 8MiB) is reproducible.
GOOGLE_BUBS (72cba2e8894439bc3a5fdded6eca60087b8ca8df4f8935840e90226a955a36db, 8MiB) is reproducible.
GOOGLE_BURNET (36642e982c55f7c354172158b4752f243dab3366a4c18d4eaabc727f3f2c1b20, 8MiB) is reproducible.
GOOGLE_CERISE (80876b1ae9130ce589e430ce0c88462bf60f298d9fed3e03e5db03b4f0ac14ef, 8MiB) is reproducible.
GOOGLE_CHERRY (ea924dfad2049be9b7ca6753ba1a6879e0b0c4a4451ad9ee86d5525d2a209b2f, 8MiB) is reproducible.
GOOGLE_CHINCHOU (ebda79f05acfbdea6cbe04fa3637a0df8f3f4432fad010c89478bbdcb7c7d01e, 8MiB) is reproducible.
GOOGLE_CIRI (e91835d3cb917844c026bf4792b006ca4880c6d558f6bfc355a96f6f2cd3ee11, 8MiB) is reproducible.
GOOGLE_COACHZ (c0a100ee8fe764d14cb0b6ace01e1f91a9583aa412b650ceb0009a86ddf6f558, 8MiB) is reproducible.
GOOGLE_COZMO (c445d3fdd62804ed249d24be6f1db62fdb9a3268b89f580c6dce09281b40d52c, 8MiB) is reproducible.
GOOGLE_DAISY (8dcb93888bfaa00a62e4d563bbb92520efd7a6536496f7551c2f87ccf710437b, 4MiB) is reproducible.
GOOGLE_DAMU (0b6ab8efa2de2c7b2d8a21794b4876afddf68156ce620940c0fd60e656906f95, 8MiB) is reproducible.
GOOGLE_DOJO (13861461bbf10000a53fbfc116c115b7b1aae93814f0a32f4cd62329f6ceac9e, 8MiB) is reproducible.
GOOGLE_ELM (c9d487f061f68b418f60dc556e8b737063a88c0e97b519921392fd1afa13ea9d, 4MiB) is reproducible.
GOOGLE_ESCHE (d285e02458ef2af7c24bcd65c7a6a29fd19322e24ceb13663cef26d999b76500, 8MiB) is reproducible.
GOOGLE_FATCAT (1df40068e04079979b1dce0d86d5afdf02834a88d1279daa4e3150d470dd91b6, 32MiB) is reproducible.
GOOGLE_FATCATISH (cefb8c3d7b6a277fe2bea073ef2b1e591a8b5b2b4f3e84f10f2373bff4c33682, 32MiB) is reproducible.
GOOGLE_FATCATITE (268d63604f9727a4a646991687d6ae5177dcf255471a9b12eff47654147c8be5, 32MiB) is reproducible.
GOOGLE_FATCATNUVO (1e7708ac7ced9fea7247073b591191b9310797c1239169556a16d94fa66c4a28, 32MiB) is reproducible.
GOOGLE_FELINO (89dabac158418640d825940c4b1026063ceba2560200d12972a65b7ea5d273df, 32MiB) is reproducible.
GOOGLE_FENNEL (a5ce78d0b9e72667b77af75ecd1791525907858151bb0c8909fc6f707422a40d, 8MiB) is reproducible.
GOOGLE_FLAPJACK (18cb133048fc4c94be853a79925fa2e42b10701b50854ee515969da88a4418d6, 8MiB) is reproducible.
GOOGLE_FOSTER (a73d97d548bb3dcc55e0a89ba0feac9437150f1e6b5fe3462fb4bfb4639a7900, 4MiB) is reproducible.
GOOGLE_FRANCKA (65a9f0cae6ffc04c9dbb42cacb48f02d61a9944145ec003be115c203465a2d28, 32MiB) is reproducible.
GOOGLE_GALE (277ff7b4a858d141e839731887fd97d0201264379aa6b03ec84f114f1862272c, 8MiB) is reproducible.
GOOGLE_GELARSHIE (17fa37d378b043b5461995f668fcbafae649e23b08a0c6d5cdb4726743ceadd6, 8MiB) is reproducible.
GOOGLE_GERALT (72680b635c562a9a57dcae135460365d42e17d0e1cf4f6a7ca1527f61b982272, 8MiB) is reproducible.
GOOGLE_GRU (61d82812e93e7f690b4060590ae46dc12abd13d9c40859aad5bdd0b49e67c6d8, 8MiB) is reproducible.
GOOGLE_HANA (63aaa6c87c07a4a9a4a4d82557d64ee0adb03a199ba2a8f3c33838097e97b7da, 4MiB) is reproducible.
GOOGLE_HAYATO (736bfbd53e2e612183217b3c16c06cff1c187eeda3cc670efa5f8e72b03b87db, 8MiB) is reproducible.
GOOGLE_HOMESTAR (e2e08389a253f3793bb707fd098e5b776d91585fdcf9dc38f88a9a25503e15ea, 8MiB) is reproducible.
GOOGLE_HYLIA (ec57a6d9b4036a501908375a3fa5be52b994dda3ef3f42945c24b8ed81e671a2, 8MiB) is reproducible.
GOOGLE_JACUZZI (ea253acd147adb6174cd87861412900c6252ae4d2bed61a5e4fee4f04e2a5f24, 8MiB) is reproducible.
GOOGLE_JUNIPER (e506fe4c2a495c5558c8c0167a4664203a02f092ee10eb96e9fa87a586876c7f, 8MiB) is reproducible.
GOOGLE_KAKADU (2d840372aa9eafb99c18c56be67f2ecaaa9f74043331cc6fc88dca33ca7db51d, 8MiB) is reproducible.
GOOGLE_KAPPA (942f7813b4b63dd48f134a580247eb5a5bb5394a3bf9b3f8cf85ba4daf85c407, 8MiB) is reproducible.
GOOGLE_KATSU (14de6f8d4f05c3b5015b83548b9d477646f91b3fc6c26265125a208db3299a6a, 8MiB) is reproducible.
GOOGLE_KEVIN (34d2cc0a8c939e82d90c195b94468af2f4b6e213eba9870ccc6784cb75f22e1f, 8MiB) is reproducible.
GOOGLE_KEVIN_SECDATA_MOCK (e988910ac4d637977dd7edb14966cf1db36279511b3b2951997461f60e722bb6, 8MiB) is reproducible.
GOOGLE_KINGLER (ffac96ec5756dfe3cda58535409f483f89ffa2f9c3a3ed5af7e3d49c061b618f, 8MiB) is reproducible.
GOOGLE_KINGOFTOWN (55cb1b3c6469aaaf124e74cd52bd727a7779ad0fc3dd2ba6e99be17303f62c5e, 8MiB) is reproducible.
GOOGLE_KODAMA (1ae429a232c5484f56b012483d3448327619a866858d46d544e509c7a21956bd, 8MiB) is reproducible.
GOOGLE_KRABBY (1da6a2dc01bc77d1fc0e2172f7dcfd3b9978782670a24e74c1403a0caf76ff62, 8MiB) is reproducible.
GOOGLE_KRANE (c2946c5e1296d647f179d107e88aab0baf62c3232d0b28ceae070127c0eb34e1, 8MiB) is reproducible.
GOOGLE_KUKUI (0493ecd7dad68b2e8878f7eb84d0845b77901b14c8909d23bc27021fad1da714, 8MiB) is reproducible.
GOOGLE_KYOGRE (137a2e99887b7bdab5776bfc55d0cfc64b3fa506af500c613cf9b24cd9a4b231, 8MiB) is reproducible.
GOOGLE_LAZOR (96ea378a4e72ac0ab9071f17c8acf747f2debeab81e93639258b600a50c33b35, 8MiB) is reproducible.
GOOGLE_MAGIKARP (7d84408d4e70e134d990f2ce47610e67ee2edaac719593157bbd12db39b09993, 8MiB) is reproducible.
GOOGLE_MAKOMO (d04890e0e44a8422d121836cd9be5a925b77250995e0f1581367c2b65e71039b, 8MiB) is reproducible.
GOOGLE_MARZIPAN (22600ead09b581ae7e39f84e5283456fc5076d37185c780248411d709846ed41, 8MiB) is reproducible.
GOOGLE_MISTRAL (edd6a7f264dcda199252ddf551cfcc6edd383969c5de5a4ccfdb9d2ad23fb286, 8MiB) is reproducible.
GOOGLE_MRBLAND (05f596d60cbf21b01a333379461262f20e44c2f961a63e163499a2ab80379d35, 8MiB) is reproducible.
GOOGLE_MUNNA (40dfc7413e8324a0898f8e19f82b4527f005fd512b65277c4de9d2a6ca541274, 8MiB) is reproducible.
GOOGLE_NAVI (61269d8a31e0752754df967b55ad6552cd84808bd8c34d6c8681978e46707d63, 8MiB) is reproducible.
GOOGLE_NEFARIO (fb2195eb6f08a700225e42a596033043cc87c25bca361d898c38ea69d353a885, 8MiB) is reproducible.
GOOGLE_NYAN (0a470b0f73733755ab44e063bc91d9e27fbd43a423bef7161e0a7cfdfe77e370, 4MiB) is reproducible.
GOOGLE_NYAN_BIG (6ff6c4c11b118f992766402ab6c33381d5caca38e8269372fff55a6c10633e6e, 4MiB) is reproducible.
GOOGLE_NYAN_BLAZE (e8338db97c1c656bf5dc557258e04142aa0a62fea9e4653037f5787063becac7, 4MiB) is reproducible.
GOOGLE_OAK (3d9abc6a3e483ad12b8574886d8a81445b031a2f61b3e82b4165cb7da34c688f, 4MiB) is reproducible.
GOOGLE_PAZQUEL (ae8f94f6e7773ed1f9baa59dad66de4cad11afa979763438c42c3dad1cfe999f, 8MiB) is reproducible.
GOOGLE_PEACH_PIT (f0baab19b429e8519d8b10a307c331a9970ff0e23060fd3ecc496d954c23dfc0, 4MiB) is reproducible.
GOOGLE_PICO (b4c3562d8c1734c0125a4262c7d093a68e427e9ff15177a1435e2817b0b27e53, 8MiB) is reproducible.
GOOGLE_POMPOM (1533c42dbf042736c72665837573b2e5a5fc502765d3722af6e3147bb4543e04, 8MiB) is reproducible.
GOOGLE_PONYTA (bd721323476499c22073c2da5cb410db0306e667ed267c412ce9b60bcc2e4977, 8MiB) is reproducible.
GOOGLE_QUACKINGSTICK (8b7fb911e1b9677b3b060857023ad6be5ca123e4b0dbe8ff9e899631547287a6, 8MiB) is reproducible.
GOOGLE_RAINIER (2f83df66b2a3e72d5f9fa8e3138a6ce244e8272b1da95cc89a79f4179ab15a10, 8MiB) is reproducible.
GOOGLE_RAURU (75dbfd0ed2799854e9e2a621fe0234b489ba8c83ba1d1c57394b45448237e85a, 8MiB) is reproducible.
GOOGLE_SCARLET (d66cf9c5d451bb7ac3d210d77f781a50966f2e4addba93bb291eacc72a2e640e, 8MiB) is reproducible.
GOOGLE_SKITTY (7b4c77b8197c9498b3f484274bad1850aef1f38006c5c456efd37c17b4d85c97, 8MiB) is reproducible.
GOOGLE_SKYWALKER (27b7d5f6087c3b497ecfcdf3684b5b74d1b6a60fd3fd77d5a19053d42bb1cf27, 8MiB) is reproducible.
GOOGLE_SMAUG (0e3ef60b23fd3e08cc605cd834e2330dec64d0556d93fd4ffbaf4c4797799095, 16MiB) is reproducible.
GOOGLE_SPHERION (f92fce0046a4da88381c8986f11d54458a9e61d3ec4810367c4bf41d40658e33, 8MiB) is reproducible.
GOOGLE_SQUIRTLE (1204af3e85bb71b77848dbb7e93da76fb21f4a97559453b81bc76f3a5cd5ce92, 8MiB) is reproducible.
GOOGLE_STARMIE (a3dac4f2f95c78eb6ebafe9e7e21ae5bbc4f35c4a2c873b2c4436e45781c4fbc, 8MiB) is reproducible.
GOOGLE_STEELIX (fe44d3db7c1f699f07419e7602b3af054851d8700d8b0140a1dd5ed460e80dca, 8MiB) is reproducible.
GOOGLE_STERN (c8ece9324a70b8a353d0e8892676a15e1c3f49415a99797879d8d5a34d8ba5bc, 8MiB) is reproducible.
GOOGLE_STORM (fe56e00a8060f0894df85f9bafe567e1645fc74cd793ffec0dece64b586de7f1, 8MiB) is reproducible.
GOOGLE_TENTACRUEL (d0c19bc78a8ce36586d6d492cba89c0de69d7d1b54925b3063ff91deb6f17fa3, 8MiB) is reproducible.
GOOGLE_TOMATO (23aa5bd8db940d84f234eff768a6e58b5fc2f7fa5880db40a666b9107d8492b7, 8MiB) is reproducible.
GOOGLE_TROGDOR (9b371695c6869e5f70fcbe3c8e7bbaaf24e25f104915eaee24019b30fc2c1115, 8MiB) is reproducible.
GOOGLE_VELUZA (caebd123fda1f2ee2dffcda5b81491d2a347b76d58a55bea17df8b3f3b73f277, 8MiB) is reproducible.
GOOGLE_VEYRON_JAQ (f9f071c7974757bacbf230aae4f508c8a7223e9777a6837c43b1bc2e6966f1e5, 4MiB) is reproducible.
GOOGLE_VEYRON_JERRY (97d8c10c7bb4e095ee0e534b3485c273571b4052cdb044b46ed5e49aaf05b2ff, 4MiB) is reproducible.
GOOGLE_VEYRON_MICKEY (41327a21e47a44feb9df00ae481c50260a70251ffa99b23519ff99ee3e41fbc0, 4MiB) is reproducible.
GOOGLE_VEYRON_MIGHTY (0ed4cf4a402ae8527199d5df645befd3c44d883c959c17ec3cc62113d5230121, 4MiB) is reproducible.
GOOGLE_VEYRON_MINNIE (4b64b11ecf2531e7214769d04722790104e3cba8de4f305b6b036355a1b32492, 4MiB) is reproducible.
GOOGLE_VEYRON_RIALTO (aa783e2503fc15a23b31d61eb6ac69dfd8041b42f1128fd2bda664de58a30e69, 4MiB) is reproducible.
GOOGLE_VEYRON_SPEEDY (a1580642038d54beb6de3ecd939cf1c418562fb47fde22245e1405ac96824e64, 4MiB) is reproducible.
GOOGLE_VOLTORB (d11c0479a4948b8dba54e8c8c90c053b9837b56817df84a7a951c681a63cf057, 8MiB) is reproducible.
GOOGLE_WILLOW (80ceec4c8116904e9a87f978279dd7fa689dceb72ef178ff4db0a5b7f935bece, 8MiB) is reproducible.
GOOGLE_WORMDINGLER (b9fce49903ad2e4e926ba509d6d9fa50d58a82f3735554e3df68681c4580de1c, 8MiB) is reproducible.
GOOGLE_WUGTRIO (b0d6eee69b2f38a6a0c9b74ee93b4073915a8b0b7841f5f99eec388495b8a8ab, 8MiB) is reproducible.
GOOGLE_WYRDEER (fcb4ed59bcda18e107be4ede5f12d68f9590ae1d9eda8aaec7d98811e9e0c50f, 8MiB) is reproducible.
OPENCELLULAR_ELGON (42b9af3030c25f3dee5cc235afc463c986a4e31a7f60e9bfdde533b79420571c, 16MiB) is reproducible.
PINE64_ROCKPRO64 (178b07c27bd4dac2b5bd1c378ee1c91c5f3894be8d27e4f6ac52fe8635ac16df, 16MiB) is reproducible.
TI_BEAGLEBONE (879a5ae1687565df2bb68cf51a7b544be4c335e70ce805d865c16ecff77d0675, 32MiB) is reproducible.
commit 0f3589b3d7f166060f2d87b21f5d748abed741cd Author: Sean RhodesDate: Thu Feb 6 20:16:58 2025 +0000 ec/starlabs/merlin: Add an option to disabled the lid switch Previously, the lid switch could be set to not wake the system. Add another option to ignore the switch entirely. Change-Id: I1dd666a44b332ffbbef4420799eeffd746fd1664 Signed-off-by: Sean Rhodes Reviewed-on: https://review.coreboot.org/c/coreboot/+/86305 Reviewed-by: Matt DeVillier Tested-by: build bot (Jenkins)
cross toolchain source | sha256sum |
---|---|
acpica-unix-20241212.tar.gz | 9dca83cfee390b710485fbdf787048370049c05723b10cc220cfef6e13c31961 |
binutils-2.43.1.tar.xz | 13f74202a3c4c51118b797a39ea4200d3f6cfbe224da6d1d95bb938480132dfd |
gcc-14.2.0.tar.xz | a7b39bc69cbf9e25826c5a60ab26477001f7c08d85cec04bc0e29cabed6f3cc9 |
gmp-6.3.0.tar.xz | a3c2b80201b89e68616f4ad30bc66aee4927c3ce50e33929ca819d5c43538898 |
mpc-1.3.1.tar.gz | ab642492f5cf882b74aa0cb730cd410a81edcdbec895183ce930e706c1c759b8 |
mpfr-4.2.1.tar.xz | 277807353a6726978996945af13e52829e3abd7a9a5b7fb2793894e18f1fcbb2 |
Debian 12.9 package on amd64 | installed version |
---|---|
gcc | 4:12.2.0-3 |
g++ | 4:12.2.0-3 |
make | 4.3-4.1 |
cmake | 3.25.1-1 |
flex | 2.6.4-8.2 |
bison | 2:3.8.2+dfsg-1+b1 |
pkg-config | 1.8.1-1 |