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Fri, 11 Apr 2025 11:07:55 +0200 Date: Fri, 11 Apr 2025 10:07:54 +0100 From: Ian Smith To: ~alpine/users@lists.alpinelinux.org Cc: "=?UTF-8?B?XA==?="=?UTF-8?B?4pmf?= Maggew.com\"" Subject: Re: Zstd compression not available on Raspberry Pi Message-ID: <20250411100754.467522db@bonsai.doitto.me.uk> In-Reply-To: <5928010D-D5A4-4F89-B339-F0B14002100F@maggew.com> Organization: none X-Mailer: Claws Mail 3.19.0 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:NtiI7FkCD4PtGFwMIyrsBoJGiAHa6+zmf1RFRV7C8ROsOB2fjNs nQtS4lcCch5RC2Qm/xLhFOaEv5vNA9P1TCl44TE5WtVaB9AKLbeMsJYMwqo71Tm+iwMkA0a y2YVjg+unV92KRiA9GNCGSt/EqFFNrUp0W9sKpFPaR6MXEKTKEfuBG3RSTx3/VUipE3Hq3o z8Xm5kUG9xUSlRa+kj8IA== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:cC1BQHx5v+Q=;7vh1YZiy4vA5GX3FCof2LsWu5TF ZFZIeb9scdX+IHF4sv4QA1m8sxk78Qm5EZ2xYadGQ9xver6+gSZOoj4fPLwieUrr6L0pWyZVT vy+8tPZ0YnNLEVcZF86xkucr8W+27G5v4/vPxA3FOP/seGcTohECrJSFcnu7TKE4qXHH9xSP7 V1c+dnik1KiXmeSQDw2IS4QRZhkMio3Tw97avC0nH4FBz2PH+k4+DM10uVDHv6457MVTUuKe5 5Qm/2X6aRG+bmyqdM+qtGRsxCGVj285Ns4IkZoTFSv9HRrh5t+wqi0bPhfTLRt7rwiBGA8fQx 48aZVLfXvwHkWA4so7kEAu1Jod2Im2Cs18YdLD1t+GSUIdLYnDbJUQV910ir86Ax5xGsaViKk 3nMp73KJxnJHZqRCCE4AdJ8jSfIQJSLE7wo8u19uwU7oMj21AoZ4G//VkLSo8qIUVvvivaNHW QDNhe9o4j/dKcEVJdOOayHd8yGvBUpvgnvvqFjhaKi92M6CC/hOJRFjK175SAvbZBtipIFxM/ y3m29YAP9pXw03A3J9YrwQZaPcKPePW03ncMWRB7W7wc+ODdrott6FjTxeS7Hb2Z0TrFpqVlx 7PRED/rR/Zy9NwwU1YNDPDujq/qX9zOzLvfj84aeBbfON4M0O0vBjLe/9mPOvoLtBI9Ru7nAd xhX6PloFiwGEIJkCmSums4o7u+zQGlvoNrf4GjUPInFhErBdljze+qQBWI9TZdmVQibPZ5KMj t1JiRT83MSQ6NynBBd03w3294M/J2JiBqQrEfImiBRIXLlihq7xntjj2LSIfxKRvVv1rJ/+2P eE/sdgMbPXBkmLwEDmxiKewCRhtVjcgmrN2Y6/HgqkCdwTfsbetBfG5rnhSnvoRpS57+R0Epq TqJFs20WDA9/t0f5PDS9mYrBmtHuP6hUHHmh7hp3fnDmov9eo8OvL7aSKaI47roIrEph/NbBX SigLeMmEmhXBFSeCobywodRXx9Pmuo01YKi9c4KDgoSnwv01EP2Hgt8eHMKD2KuIoBJ0wENcB /5rwchNXKeuFNLuwpYtmvk8qsfLFlttEwEmWSHMhxSCzHurZdzx4y5iXlolNxiSkYtQgZsBpo I9Y7BevtzgqDylk1eAIJX5POCq93mNACE4m/6CJ4ZgNWWIokPzf01NkedUbhnsrC2aUDP/Q93 v7QcR7FasG2MHE569Zg7k8XguglpglGMUlfDYqlxMUXIqHYbtLptVcVN+PS3ymZ+4IH6f2hqm kYI/YctRaz7DKcqvKnHdNM51NZlfPuXXAzosC4Pgjfo2jYdnXfRrDwOIU2fPeCY+4WsV9zpeh k8UV/0vUBBHWb9icxoFDc8oKn/sva2o5pPbYe6JZdtXTKlYaKY5PySOUqqp1wS3y6gA3C3hVW 7zhduGPFV7lI+gR3M0VykErW7WPY6RjbnxAcjNuc8jvHbd9TX1A7Oscbj76AtmhpRHAUb3QlG orb4oiWFw8v5D2c5u/1vAbTBT6X7Oqou5PBaGC/RFY3qxrvQRJZ1lId5Pdz872d2akgIvcNTP 7Ei/yUt0OyxdP9f9aLJXfDCFa/4QQMAXDWI/Bl9rioVxEFfaAVRvXhR7gRKeDhHHoxh2+EYhz 546rD7Vq4N1NJyUtzXg/6NGGbznaNVk+K8KE1w2eOnUscQzjHcLXXlzFTcUkD88WZJJjVgj8a XpCfjt7z85R2ugiv/0f5QfOTtKMvv30SZc5ew/4eNxizLSRiFXEti963V+45NwivVJcYJ77Ax JtDad7cscGkoEGWVXcvtCLTzxL2pvVgg7kTRqhyDwA/6vuNliZD+0SE17Mc78cuaB5UteqkaW O2gG1Mvhlm4p0F7hQf+A6TAD/vVxuoyPcvKIOiePcvR4cNKgR3UA0V3hmo/gkeTcrxAVVcTHf jKcIjYHy8pmykzUgR/Iyvu4OX/Zv7zY53DAYq/fAeSEzC9vTfQtwSaQouOfsnrFbH4h3MiR8Z SjRWUbz6kAf8ZLEDMS/SaYeJb7Gze8g/bcV0SJIuo3xS8vj5xgm7AhCJT1wRf/zgFB2zgufjf 0yh+qXC3Il0dTylNIAX65efPgQ1aAbhjrdbMlOLA6ICXoAaXzdwEv94mMQl6mRLLiAsNQgrCU SLbyc1dt8EGUX2j10/iUYGlH10qqAXHHUXdlIUJh+WiUoEjJExfNLFQqMUq7gtvJMg33MwKS+ I0UH5ugQOHHh5nlbjFuc2RTeOwkAGUUoXvYFUTMdZ1XCMMpkCvcRflZD8B0LF2DD1mr/jTdDk inPMD2pQs7zz8IfbMJYjWslj3qjidvvJNsaJx/8yZ0N2DWgnyFvQ6YD6KGSL3PKetkD5ZkvX0 kaFKOoTVQG/VpIKoaSSLMopQxQwszHpynvLyGh69R6Lc/0HJSrePEzYxlIsnqdEHLboGywEtf ZAHi+IXQeaNSx0XPTrKurox6Yt1B6i64+ZLgzYhR4wjt09ny6ADnsgLzbF34nsrhDsPlxAzjv 6AfSaOpiaZibKJu79FHY5RYsso4rE4AAWm9xfwkaMNvi/WCLWJPqId+4A2OAq+UHeeDDAYB6o zt2RWlVqJZoSylBedQUjuPZMpLnEO7pf937XEMK2qMp92E0XoecxOYrussR83nJlaVDachSOH h32AFTbbs/DxdVjwQbVgIvyYejKDyrJ5vmVkmRsVMEkDcxmdI2kyFCu2pmJ/q0UUNMiQ9YYCl zOsk9G1svDj8luB2pTXrarlyoOP2SqR6BMXUGanLKJDEMMDhVb4l1uDjb4avJQ2qPqtJxqnIw aLH9l5P6n7pFt4lD2gzBGMqRtbTYWTlw27CkAwTT8PNREqU6a1cRf+1/8EkkFFm1NdzKQd6y4 xmkgj3NjBBq95BqU8UO9iWiTpCvUMeLK+zG9gIyyRNG/Je5vsEj8tqqxGw8KvEv1c4xZy/AXG oGKhqi3Snp2sMwulhNF38Pz3ynCedHAZrrezF6THUgZ/mm3l4TeIzvGm4HmrPO7b6RGcC0c5+ FX8N21C6waO8rU0xIKXxRfVBkLvCiR4yg3sUE0MSB/9LzF5feIpfSOaMN/BqN9xgRKCIZ0GOT OxoV+XgK/Ny5DHHqsUsrDeLJbW13/OBsoaBjd3LxXUQ Hi Matt, Thanks for replying! I don't think that file exists on the Pi: $ zcat /proc/config.gz | grep ZSTD zcat: /proc/config.gz: No such file or directory (for info) $ plocate config.gz /usr/share/man/man5/proc_config.gz.5.gz But I am now pretty sure it is not compiled in (to crypto), as zstd and lz4 modules load OK: $ lsmod|grep z Module Size Used by zram 36864 1 zstd 12288 0 lz4 12288 0 lz4_compress 24576 1 lz4 Contrast with a Debian system (PiOS): $ lsmod|grep z Module Size Used by zram 65536 1 lz4_compress 49152 1 zram where the lz4_compress module is clearly identified with zram. I will investigate what is involved in building a kernel in Alpine, if it is not too hard I will try it. Cheers, Ian.