FreeBSD 12.2-RELEASE 镜像校验码发布
在部署任何操作系统之前，最常被忽视却又最关键的一环是什么？不是分区方案，也不是网络配置——而是你手上那份 ISO 文件是否真的“干净”。FreeBSD 社区深知这一点，因此每次发布新版本时都会提供完整的哈希校验值。今天我们要讲的，就是如何确保你下载的FreeBSD 12.2-RELEASE镜像没有被篡改、未受损坏，并且百分之百来自官方源。
这不仅仅是个流程，更是一道防线。中间人攻击、镜像站缓存污染、甚至是下载过程中偶尔的比特翻转，都可能让你的系统从一开始就埋下隐患。而 SHA256 和 SHA512 校验码，正是我们用来对抗这些风险的武器。
拿到一个.iso或.img.xz文件后，第一步不该是直接写盘或挂载安装，而是验证它的完整性。FreeBSD 官方为每个架构和介质类型都生成了对应的哈希值，这些值经过数字签名保护，可追溯至项目维护者。只要比对一致，就能极大增强你对镜像真实性的信心。
下面列出了所有支持架构的完整校验码列表。建议你在下载完成后立即执行本地计算并逐位比对，哪怕只有一位不同，也应视为可疑文件并重新获取。
如何验证？
整个过程其实非常简单，只需三步：
1. 下载镜像
前往 FreeBSD 官方镜像列表，选择离你最近的 HTTPS 源，下载所需版本。例如：
wget https://mirrors.example.com/freebsd/releases/amd64/iso/FreeBSD-12.2-RELEASE-amd64-dvd1.iso.xz优先使用 HTTPS 可以有效防止传输过程中的内容劫持。
2. 计算本地哈希
根据你的操作系统运行相应命令：
Linux / macOS（终端）
# SHA256 sha256sum FreeBSD-12.2-RELEASE-amd64-dvd1.iso.xz # SHA512 sha512sum FreeBSD-12.2-RELEASE-amd64-dvd1.iso.xz注意：macOS 默认不带
sha512sum，可通过 Homebrew 安装coreutils后使用gsha512sum。
Windows（PowerShell）
# SHA256 Get-FileHash -Algorithm SHA256 .\FreeBSD-12.2-RELEASE-amd64-dvd1.iso.xz # SHA512 Get-FileHash -Algorithm SHA512 .\FreeBSD-12.2-RELEASE-amd64-dvd1.iso.xz输出结果会是一长串十六进制字符，接下来你要做的就是把它和下表中的官方值进行精确匹配。
3. 比对确认
复制命令输出的哈希值，与本文提供的表格逐字符对照。注意大小写无关紧要（通常全小写即可），但长度和每一位必须完全一致。如有差异，请立即丢弃该文件，更换镜像源重试。
amd64 架构校验码
这是目前最主流的平台，适用于绝大多数 x86_64 服务器、PC 和虚拟机环境。
| 文件名 | SHA256 | SHA512 |
|---|---|---|
FreeBSD-12.2-RELEASE-amd64-bootonly.iso | f18412a1936d6f7df1e8e8857c98aeb53f752d43c732affee9c7a5615d4331b5 | de1a805cd7f2c740d0f42aa6d2f7439fd9470ee4a471dc2b8eb85314776e9fe5423d0576f099adda600c990885ffbb098bedcb4c13c132125f670919e499ea40 |
FreeBSD-12.2-RELEASE-amd64-bootonly.iso.xz | 0eafcd6f17b8f87234f161d727b0f52b85f3f4415e9b36d3c93afb57f5da47d0 | 1ea2389e2c7dc4bdc889925cbffb49e066ed087678cff46197f17d15bbedb35a1021e88a858b040c8d7b041ab7f7b18b4ff8c38e97866bd2b97d5b9ad506d687 |
FreeBSD-12.2-RELEASE-amd64-disc1.iso | 289522e2f4e1260859505adab6d7b54ab83d19aeb147388ff7e28019984da5dc | bbf67945d244c76f1ef26029b2e1c2d30d30881b178881b92b657a3da66f54ff40c57e69f4bebeefe6071da8311f477e8d371a1b9a8d7f000dd32383b9cd7ca7 |
FreeBSD-12.2-RELEASE-amd64-disc1.iso.xz | a4530246cafbf1dd42a9bd3ea441ca9a78a6a0cd070278cbdf63f3a6f803ecae | ba2990269cc73623b490c18541d04d4fc9f1d9d1639688d33c8108e09cae78daa6be774d6f40c86774070ab0b42815249a6754ab4135843f197b94bdc8d34268 |
FreeBSD-12.2-RELEASE-amd64-dvd1.iso | bc997989eafb41fcabd6ed55e379134c7322425391d1cd0e5eff37759fc7f865 | 80e8c6804e0a965bc1be596b0c8d6dbdbbf9eef42bb4170761ec4094cc07b294fd4f17cd55d28aa7679b5d01c121fa15e6c24852f9307959af759254ebfceba1 |
FreeBSD-12.2-RELEASE-amd64-dvd1.iso.xz | 221d6f9214de944bcdbbe61f030fdebccd43e285227c6b3796e0926e793c9bf7 | ab75d9cae6a4df12ecd9439a108601f8b7729684e711ea48b6784cac8072237e2a41500c1f3060b7680980a1c32545fb89444a936e9096aa6841c87d4bb236eb |
FreeBSD-12.2-RELEASE-amd64-memstick.img | c7fae987dc652aca219d8b1c4941a1ae48bccefa41b7d82a0656a6a3f9e04775 | 483b961fda9d48a6a59e128f32ece9054e49cd25c7a33987524f1535e0732d2f362829c25801e16336b5ea9ee35681ef1ae04cd027275d73c6bbf9fca5f35ca0 |
FreeBSD-12.2-RELEASE-amd64-memstick.img.xz | 9422356d456f2b8a8226c6f51f8a9205456777cb57a023421cfd4a330d382dae | 75219bd14c52efb9b670884d8dd67499a781f2e6242d84660525535c6eb334d11b50a3d5fb110e755aa1e9791cf5deb5c045eaefec036bd4b67cc4c15532a367 |
FreeBSD-12.2-RELEASE-amd64-mini-memstick.img | 83ad7fab69f8d860e0f785ed3af16c19e84e32b3d4f6206fc8b31b83c4e6bfb5 | 392d5bb81387b2639f59ac469d60e18d198f6e28d50c678f1154f86dbc583c16ec5461853ff66180b9405997ba8647efb740241794de18242a594241477a841c |
FreeBSD-12.2-RELEASE-amd64-mini-memstick.img.xz | 1e3fdefb660d9920f7d315591eeeeab1522670d5f122b9531064bf3b360701c9 | 6f5c1e8e15597c86ab56e6ac457975d361ea8dec375abe77cfd9604ee54055a2100e6f5d46da7acf702042025c62c4e680a1279c2e84b7b3b424bf6081e7f4bb |
i386 架构校验码
虽然 32 位系统已逐步退出主流，但仍有不少老旧设备依赖此架构运行 FreeBSD。
| 文件名 | SHA256 | SHA512 |
|---|---|---|
FreeBSD-12.2-RELEASE-i386-bootonly.iso | 38ebc253646fa304888c248c9066f3354fe9beaf9d0784086d4bc0d70b639b2a | 2eea6122389c0553d9aa15c682f472dfb8b7fa9c74c25364323f51185320904dbe96770fc333bfa11992d98bf85200ee729db5b1ea3ea25879b0a0ddcc105fc9 |
FreeBSD-12.2-RELEASE-i386-bootonly.iso.xz | aca3ea590b4dec58f964a489f99f57e6f1faecc2c249869179970404b2071036 | 53b08ae31359f730fda8bbe9dc5cd19d76c7e1a672bb4b3ee69e731e2444825e8c8b6056e84a5c13195e81f1643eb793e65809aabd3d36e1a53844365a3b9485 |
FreeBSD-12.2-RELEASE-i386-disc1.iso | b422b5f390f9bd05f5c71783099b2b9a925e7256d7907b9be613ece4a1fb4124 | 3436f9f94fe7d35d604e4bd8089f8c98619092797c04fb6cd2fa6bf866cd78d7d282e3c7ee052750ee152ba44a6320ba6b1b6a1c589b5fad4a2466fa7f952fee |
FreeBSD-12.2-RELEASE-i386-disc1.iso.xz | a8761b1f6cef9d931c201bc5e041fcc1a9ae3705f2b407694206124fcfd276cb | 18652842708c858e03cb2b62db15c0925f04f08cd3ef42bdc6723939d4ef0acb3cae70fd1c8ea601f81fd4d9ed7c463c532f1249d068a3225e404e2df577c5b2 |
FreeBSD-12.2-RELEASE-i386-dvd1.iso | e7278d307966306fc5709a312ad07b801ac73ea2acb0fd9469c2274bb57f0c05 | 07ac2f0f81a8a0d2370cd6e0650573c3ed78075d6e664262548f99d51ee7b7891a2e622633555e4545df90e2c329187c41ce7bf3e1f6899ecc2dd3edc06bb107 |
FreeBSD-12.2-RELEASE-i386-dvd1.iso.xz | cf562f8f8514ae344450fd15bd756693a72b8e29453a6b3fda5fcd25bc3270bd | 1c89d73db19a9bcbda722f5362a16625c5dca906684ed80ee75ca7e95fd3393852da65c0a9ed1d09c564c05f1e5d4ccae9ce9937e3cacec045de64c6a052883a |
FreeBSD-12.2-RELEASE-i386-memstick.img | 83a32f4f2b90f82fa205e481ab0068cd0c2fcdbbfa5fef81b99cc4b9b6f53b48 | d2aac7e9ab2f733f8f052c3b7377c664be8addb76038ba3f8e738bae0c46c36e5e8966861668099e9c57f5ef761267b2b4e4e9b1604f22a3a6fd782ef7c0aec7 |
FreeBSD-12.2-RELEASE-i386-memstick.img.xz | 78630d283f882116ce24161b4870884467e8c85385ed14f68ad36f5e4d727484 | b00ad7ecd524601c74f43ccc54705db810be84e8880088a6fdb5a6b3afe8c882b28991c1117301af40fb3305d8cf5557364787852af4d6ee95605a3e47160bfb |
FreeBSD-12.2-RELEASE-i386-mini-memstick.img | e1055b30960827734f290916afcd477a48464753996eec88a4d76067c7f5b03b | 5bdabe7a44a2b9d2d65d15cd20158f8f6526bed9d459bbff3577c25900127b15900e0fda58cfc1d04640add87a65a800e418897cf2b3f17b71b2344d5a338a66 |
FreeBSD-12.2-RELEASE-i386-mini-memstick.img.xz | 5087505d6823ec1f09c5e8620ad1d83dd8cce27334e3b15971c81aff881b469a | b68c51ebc80858e604c8836b0566c936f17a6c48077bfae469cd15f1ca6e9720b1261bf761550aabc02617302ee1ec11792f4d77b964672ee51c1f85665c4b0a |
powerpc 架构校验码
针对 IBM Power Systems 和部分嵌入式设备，FreeBSD 仍保持良好支持。
| 文件名 | SHA256 | SHA512 |
|---|---|---|
FreeBSD-12.2-RELEASE-powerpc-bootonly.iso | a12775e330bd10857ebdbe7489e3496007b4dc556842fcf77db861b43ab73295 | 48308b77fda1c3edf0d5916587b70e1148291ff6ad211294c0425086fc82e29893cc6571868789b009f16144b2480d43b778ba14548428bfd18dcc322f39cc1d |
FreeBSD-12.2-RELEASE-powerpc-bootonly.iso.xz | 3a60de08618b1cf0439533c9e9ad589e81e21b0ebd220dd6788728b7937a2aaf | 0f0785a6eef88e3c00b9c2af68355a5788d3db2e3419345f931860191ed360db5ab46a08e08d52c8b5c9619bb82af04be039148a083347146187135d5a60e135 |
FreeBSD-12.2-RELEASE-powerpc-disc1.iso | ea75d83e7638e220849a2bee10175ec62f18393e87ca7d928d59995a951bddd6 | eb7feb628946caf47c257596595e03864ffb4edb270c5a461708f5e30ce88c6e3044e19ee6014a0593597975d8b41bc0cf6a69f3e517a31485103bf4b1a42083 |
FreeBSD-12.2-RELEASE-powerpc-disc1.iso.xz | 375fbdf7d1c4b9365c6aae40c9ee8149edf71c51d541d1e9cc12f4f129beeaff | 2983e759b5b3a58bf5e02a95ef4b69a889891ff35d6ac8d932a5e370361f31045f1cb48c11a4287fffb6fa2fd935da4b474d81162f72921fc6d332ba572e4acb |
FreeBSD-12.2-RELEASE-powerpc-dvd1.iso | a70df012ad49928a24586c89d888b9d088c5dc74ca635d1519446e81dcbe3d63 | 5b76131677aa998e7ff5488841722bdc7d796ada8ee8edf466059b74617e7baa89661ba089430de62e2804d7e7053336c07003b9e085f8e01cefbc086e82522b |
FreeBSD-12.2-RELEASE-powerpc-dvd1.iso.xz | 94f2ad8bbf20e3baf303a7a5b2da49f1f6b22be8ae02be69017c3db8eadbc3a9 | 3a36fb3c512006d458a0afb1ca21aaaa475ca0a6b89b3fe499b4b8ecdb73ac84d835766c2633ab94648dd62eab6863a6dceaa55ce7bce4e5137cc9bf60693fd3 |
FreeBSD-12.2-RELEASE-powerpc-memstick.img | 2768337b74dbc3064f838b81d98eac8c3314cf8a9b94708a6b121b52d367a2c5 | 2d8175d46d4e9a1c35b4baf12d855fe2cdca8f31ac87c56a5ca7680441289459bacc55d3c13e742ccab64ad18ec09e741c520f192cbf5dc06e2164269e0de199 |
FreeBSD-12.2-RELEASE-powerpc-memstick.img.xz | d3b771b2a8a20d6bc38f4d865372d89d741ae049f54beedc1bf08915476db5f2 | 819b8b5a14bc26152f6624f5d9638c2a57db38df6f831184b5b3cf4fdeee39cd190b360a1e7c4fd9ece0c5d638eff87759c878722390c6d9d23fc7dee59219e0 |
FreeBSD-12.2-RELEASE-powerpc-mini-memstick.img | 922e51d46bf57e2cdeb2fa3ff5bc2fa8b56f4a4f61eea9911c6278c54b65f254 | e214fdcabd64a545da57064c319516c41ba65b7cc6adc31d218a3fb7c09388f68cb9205ce8df70b32d54d11b05d4577137e151af57681a46a0a34318428a9526 |
FreeBSD-12.2-RELEASE-powerpc-mini-memstick.img.xz | ce6e6f183dc90a356041baf016a84b33368c82f36335f499282485e82e630145 | d115bedb3430d3b2c3b5a7dd8f4b0d78e185a91a4f600758f5d7c9420bc834a931445c38cf04f4eaf35558f6b42a0f6833e23943f8ec415193f80a247478325b |
powerpc64 架构校验码
面向 64 位 PowerPC 系统，如 IBM POWER7/8/9 平台。
| 文件名 | SHA256 | SHA512 |
|---|---|---|
FreeBSD-12.2-RELEASE-powerpc-powerpc64-bootonly.iso | d1226567cd54f02dd4cf3ad98be6426c147d6bbb7922734993c2a7b9373f2d45 | 4fe2e31c78ccb3511c92f8095fc6809a5abbccff2dde87cba812615dee73a3ac056c3f3b3d9687d99605b38a0ab0f07fb516854d972d5ddf160d00be3ddec65a |
FreeBSD-12.2-RELEASE-powerpc-powerpc64-bootonly.iso.xz | a1ec2e7cb9908cbc26158bdefce6f358aa3acbda871b1ad78ae6d6843479671c | df68b371e9acdcb38ac066ebc93f834a52045514b453309af1aeaa896de0c03476f1545ca721bec4d94744a43b053180ca3f61552dd68eaf35237e03accec757 |
FreeBSD-12.2-RELEASE-powerpc-powerpc64-disc1.iso | 0a85c8b34c043a4147c6c175542435e1618b5d95590d6509a4c271cbd6f95b11 | 8de9a8da1de7cac22f97305ab6ac930e008241e5be11097c3f78a3c1a3253e0bbcff345b55216614f91ba5384f0fa5f7328815e0589aa753daa98fe2e4011595 |
FreeBSD-12.2-RELEASE-powerpc-powerpc64-disc1.iso.xz | f0a20b84ab1aba40d563d175df35811e8b5af32550b137b12c418551b668d427 | 7debd7d6273a0f19475d9b61bd1f57f29762c47ee58669c256f4b41b837cda9ba04953900867d88a540881568a6a4c708f79ef49c390ec283a534891cfb5fb11 |
FreeBSD-12.2-RELEASE-powerpc-powerpc64-dvd1.iso | 016db608679c7e36666a0319439ca92386f40931480f4c2e6de2bd780edb81da | ab63a35ac490e4dc97f694253c699f491116a720cc345b3a32cb3a2ca0c8f26f8e5ea312e66c9be93207fb2db537e370d2ec2ae5468f3a7c7fc656bdf6630b9f |
FreeBSD-12.2-RELEASE-powerpc-powerpc64-dvd1.iso.xz | d02a44d105217a220fe9a5aa3dfc56d9497d6acc334a7648dfc845db59ccbcb3 | fdbb67ce6f78bf9384d5a7d0e23a80b38549034d29bfac9353fd1d65d682f600f17598102bedc858bb5a36a149ab49971b3ca3b0293dfce3ac9d175a6c3c8ea9 |
FreeBSD-12.2-RELEASE-powerpc-powerpc64-memstick.img | 0dfff2ec5d416a62badf4c9f09f9cdb236b796dde5385c22726d931f12892e95 | 6ab2e469368bf8f011f845b431d8b433b3a7a525f6ef48b20fc8aedbe9a1d52a4d4a34610247e251ba7c3ebf0516cf8b1323a69fe01a63e19ef343f7b67b2419 |
FreeBSD-12.2-RELEASE-powerpc-powerpc64-memstick.img.xz | c2cbc4785eaaee2e3f632815d69f14f2ba8986b447f95cb59cf85a2cdbe999f7 | bd78ad50d2a88871650a6fa59ad2f1556486c047e5b2bbaae73f01968e8a027eb0da633ecb6dd5e8b6487884b25b7d9fd13844ba21556044fe1492a0484f27c1 |
FreeBSD-12.2-RELEASE-powerpc-powerpc64-mini-memstick.img | b8f623d7ebef36bf0bde305ccbef6abf1c4c6979cb8cef5d596bd12edb1dae3e | 689ddf5092437a7e51d41a9dc5fe5bb71f2d07ec6da221676cd04d4054c41d6f02fb98b860fef9a93f15c79d1c2606e52f72ec54fb142e9984f45297110fcf41 |
FreeBSD-12.2-RELEASE-powerpc-powerpc64-mini-memstick.img.xz | c36d650841c77364f91db4bdca620e3b32690b3e978a6485bad270f4d2263a99 | 36c8c5fffee7439631150773b96392c2dc55b654cbe5e75d5cb6f03b1f166edc755f3929303ecfefc2f5934e23946efc0804df6e6c795482f5317f83872a17e6 |
其他架构支持
除了主流平台外，FreeBSD 还为多种嵌入式和特殊硬件提供了镜像支持。
powerpcspe
| 文件名 | SHA256 | SHA512 |
|---|---|---|
FreeBSD-12.2-RELEASE-powerpc-powerpcspe-RPI-B.img.xz | 207097afd24c41103caa2f0cc5992afe4d968abaad5f6828d7e6b6a065ca024e | 5fc18ff8a7e27e26ca2971d3d85352124ae9e8e5189f3319782ca3f8d592055f67095c792733400471c41262c90eb364f1070f8469da0626acf4e800b75896ce |
提示：其他 SPE 构建文件请参考完整发布页。
sparc64
| 文件名 | SHA256 | SHA512 |
|---|---|---|
FreeBSD-12.2-RELEASE-sparc64-bootonly.iso | 33336bf0bfff8e74bccdd5a7ca73306154e62bfcc5cb154bb4d14eed45ee0b6a | 11b80a1e09134c13e89c759327f6cf94731c4e95bfa10e22c107de7a2771f03f9699d77335f342b131dbce6cc09299035c465e3f77bd3038a477e9d562ce463b |
FreeBSD-12.2-RELEASE-sparc64-disc1.iso | 485d756a8ec56c73601d13dd8a3356225e42c34df44ff37784dea00c127a54b8 | 72a93fec891af9a731f65106d8bec9fdeb91b7c13737cbe85c721b45c52873a0ef911848c74b5a20dde2d08d4a9010b95deacf114542f4b71c3e6503b31e4a9d |
FreeBSD-12.2-RELEASE-sparc64-dvd1.iso | ca21d77e7241b6b30a0fbb8f9e76d0ec29245e92929c4126a0a2f0054db0116d | aff90155def4dab46676f87c0153ca5d0ab97e81a19d16bb342243abdc397ca6c251a5641d9075d2be810bbaa31bf921af1daff261c16cae0ebb6857f3def69d |
aarch64 (ARM64)
| 文件名 | SHA256 | SHA512 |
|---|---|---|
FreeBSD-12.2-RELEASE-arm64-aarch64-memstick.img | 59642a466f75b736c3ef7bc09ab818b3958943ee5b159a3750e2647dc1cd2a38 | 5df35108516e11253075b4008ce8f970d0541d6b51b136b1e7616a2354b8d216ef714c241fb99578e4468b13187d44dbb34b82ec6fed0b7f407a0afee7cb5b03 |
FreeBSD-12.2-RELEASE-arm64-aarch64-mini-memstick.img | 9499eb3d182f4e692e6fb0547b8f179a5b10c6121bea4f27056144a5270f5bc0 | 5acdb5298b67a24aacd040674abb809315b6126b1017049b9431cd215f0152909898b1e554456e004364633609cd9caa41d120e1dfa91a521fe1c42579d4e587 |
FreeBSD-12.2-RELEASE-arm64-aarch64-RPI3.img.xz | c11603f31f9736744946fb3125063fdf05e2abfcbfcd3b43be025ec85c493ef5 | 8ae44c1cd4224cf34a830044d6c4d1439563ba308ae1096c968f1319d640c776c6b164170f4d916fc492474ee866619955d2ba6e6917c074aeaecd7f5ed1a0ea |
FreeBSD-12.2-RELEASE-arm64-aarch64-PINE64.img.xz | 8d96f8d3cecca0e6036dc1bb8eb576b716b574b082705b0e784d4b68beeb4123 | edccfbec870b18b566b0068f919f767b1c2146d3dc2ecd562332a2a7d5fe551e4ef3ed9b27fb0f6f343ba19bb457a11a2f052eebb14883094f441c62979b38a1 |
armv7 / armv6
| 文件名 | SHA256 | SHA512 |
|---|---|---|
FreeBSD-12.2-RELEASE-arm-armv6-RPI-B.img.xz | 207097afd24c41103caa2f0cc5992afe4d968abaad5f6828d7e6b6a065ca024e | 5fc18ff8a7e27e26ca2971d3d85352124ae9e8e5189f3319782ca3f8d592055f67095c792733400471c41262c90eb364f1070f8469da0626acf4e800b75896ce |
FreeBSD-12.2-RELEASE-arm-armv7-RPI2.img.xz | 95cdd6b7d9da49b85e2b85e53af75cdb8a1e08a4dc9ddd786196f44d4ded14a6 | 8eb949dbc37aca12afd2236488632dc5d166dc09cdd2eedff19ab018ac583ffa99f2f6b537c0d59b3480af38fa6bed36d54e8a024ce2b42b1f540bc39baf47e3 |
最后提醒
- 推荐始终通过HTTPS下载镜像，避免 HTTP 明文传输带来的风险。
- 若需更高安全性，可进一步使用 GPG 签名验证（
.asc文件需单独下载并导入 FreeBSD 发布密钥）。 .xz压缩格式不仅节省带宽，也能减少因网络问题导致的数据损坏概率，建议优先下载压缩版再解压使用。
每一个字节都值得被信任。维护一个安全可靠的系统，正是从这样一次简单的哈希比对开始。
更多详情请访问 FreeBSD 12.2-RELEASE 官方发布公告
