{"id":79249,"date":"2020-04-25T19:42:10","date_gmt":"2020-04-25T17:42:10","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/chto-novogo-v-ubuntu-20-04"},"modified":"2020-04-25T19:42:10","modified_gmt":"2020-04-25T17:42:10","slug":"chto-novogo-v-ubuntu-20-04","status":"publish","type":"post","link":"https:\/\/prohoster.info\/lv\/blog\/administrirovanie\/chto-novogo-v-ubuntu-20-04","title":{"rendered":"Kas jauns Ubuntu 20.04","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Kas jauns Ubuntu 20.04\" src=\"\/wp-content\/uploads\/2020\/04\/e315f7ccdb370c7afdd5d9d0357ce10f.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n23. apr\u012blis <noindex><a rel=\"nofollow\" href=\"https:\/\/releases.ubuntu.com\/20.04\/\">notika<\/a><\/noindex> Ubuntu 20.04 izn\u0101kums ar v\u0101rda kodu Focal Fossa ir n\u0101kamais Ubuntu ilgtermi\u0146a atbalsta (LTS) izn\u0101ciens un turpin\u0101jums Ubuntu 18.04 LTS, kas tika izdota 2018. gad\u0101.<\/p>\n<p>Nedaudz par koda nosaukumu. V\u0101rds \"Focal\" noz\u012bm\u0113 \"centr\u0101lais punkts\" vai \"svar\u012bg\u0101k\u0101 da\u013ca\", kas saist\u0101s ar j\u0113dzienu viducam, centru noteikt\u0101m \u012bpa\u0161\u012bb\u0101m, par\u0101d\u012bb\u0101m, notikumiem, savuk\u0101rt \"Fossa\" ir ar sakni \"FOSS\" (Free and Open-Source Software \u2014 br\u012bvais un atv\u0113rt\u0101 pirmkoda programmat\u016bra) un p\u0113c tradicion\u0101l\u0101s versiju nosauk\u0161anas prakses Ubuntu, kas nosaukta p\u0113c dz\u012bvniekiem, noz\u012bm\u0113. <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%A4%D0%BE%D1%81%D1%81%D0%B0\">Fossa<\/a><\/noindex> \u2014 liel\u0101kais pl\u0113s\u012bgais z\u012bd\u012bt\u0101js no \u0123imenes Viverridae no Madagaskaras.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<blockquote><p><b>Izstr\u0101d\u0101t\u0101ji pozicion\u0113 Ubuntu 20.04 k\u0101 svar\u012bgu un veiksm\u012bgu atjaunin\u0101jumu ar piecu gadu atbalstu darbvirsm\u0101m un serveriem.<\/b><\/p><\/blockquote>\n<p>Ubuntu 20.04 ir lo\u0123isks turpin\u0101jums Ubuntu 19.04 \"Disco Dingo\" un Ubuntu 19.10 \"Eoan Ermine\". Darbvirsmas versij\u0101s, sekojot jaun\u0101kaj\u0101m tendenc\u0113m, par\u0101d\u012bj\u0101s tum\u0161\u0101 t\u0113ma. T\u0101d\u0113j\u0101di Ubuntu 20.04 pied\u0101v\u0101 tr\u012bs standarta Yaru t\u0113mas variantus:<\/p>\n<ul>\n<li>Gai\u0161s,<\/li>\n<li>Tum\u0161s,<\/li>\n<li>Standarta.<\/li>\n<\/ul>\n<p>\nT\u0101pat tika no\u0146emta Amazon lietotne. Ubuntu 20.04 k\u0101 noklus\u0113juma grafisk\u0101 saskarne izmanto jaun\u0101ko versiju. <noindex><a rel=\"nofollow\" href=\"https:\/\/itsfoss.com\/gnome-3-36-release\/\">GNOME 3.36<\/a><\/noindex>.<\/p>\n<p><img decoding=\"async\" alt=\"Kas jauns Ubuntu 20.04\" src=\"\/wp-content\/uploads\/2020\/04\/9b22ae9782de374acf7c7579c500e5fd.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<h2>Galven\u0101s izmai\u0146as<\/h2>\n<p>\nUbuntu 20.04 balst\u0101s uz 5.4 versijas kodolu, kas tika izlaists 2019. gada 24. novembr\u012b. \u0160aj\u0101 versij\u0101 tika ieviestas vair\u0101kas svar\u012bgas inov\u0101cijas, par kur\u0101m m\u0113s run\u0101sim zem\u0101k.<\/p>\n<h3>lz4<\/h3>\n<p>\nCanonical in\u017eenieri test\u0113ja da\u017e\u0101dus saspie\u0161anas algoritmus kodolam un s\u0101kotn\u0113jam iel\u0101des att\u0113lam initramfs, cen\u0161oties atrast kompromisu starp lab\u0101ko saspie\u0161anu (maz\u0101ku faila izm\u0113ru) un izsai\u0146o\u0161anas laiku. Bezzaud\u0113jumu saspie\u0161anas algoritms lz4 par\u0101d\u012bja visiev\u0113rojam\u0101kos rezult\u0101tus un tika pievienots Ubuntu 19.10, \u013caujot samazin\u0101t palai\u0161anas laiku sal\u012bdzin\u0101jum\u0101 ar iepriek\u0161\u0113jiem izn\u0101kumiem (Ubuntu 18.04 un 19.04). Tas pats algoritms saglab\u0101sies ar\u012b Ubuntu 20.04.<\/p>\n<h3>Linux Lockdown Kernel<\/h3>\n<p>\nFunkcija Lockdown palielina Linux kodola dro\u0161\u012bbu, ierobe\u017eojot piek\u013cuvi funkcij\u0101m, kas var at\u013caut izpild\u012bt patva\u013c\u012bgu kodu, ko nodro\u0161ina lietot\u0101ja procesi. Vienk\u0101r\u0161i sakot, pat superlietot\u0101ja root konts nevar main\u012bt kodolu. Tas samazina potenci\u0101l\u0101s uzbrukuma nodar\u012bto kait\u0113jumu, pat ja root konts ir apdraud\u0113ts. T\u0101d\u0113j\u0101di uzlabojas ar\u012b oper\u0113t\u0101jsist\u0113mas kop\u0113j\u0101 dro\u0161\u012bba.<\/p>\n<h3>exFAT<\/h3>\n<p>\nMicrosoft FAT failu sist\u0113ma ne\u013cauj p\u0101rs\u016bt\u012bt failus, kuri ir liel\u0101ki par 4 GB. Lai p\u0101rvar\u0113tu \u0161o ierobe\u017eojumu, Microsoft izveidoja exFAT failu sist\u0113mu (no ang\u013cu valodas Extended FAT - \"papla\u0161in\u0101ta FAT\"). Tagad j\u016bs varat format\u0113t, piem\u0113ram, USB zibatmi\u0146u k\u0101 exFAT ar <noindex><a rel=\"nofollow\" href=\"https:\/\/git.kernel.org\/pub\/scm\/linux\/kernel\/git\/torvalds\/linux.git\/commit\/?id=c48c9f7ff32b8b3965a08e40eb6763682d905b5d\">ieb\u016bv\u0113to atbalstu<\/a><\/noindex> exFAT failu sist\u0113mai.<\/p>\n<h3>WireGuard<\/h3>\n<p>\nLai gan Ubuntu 20.04 uzreiz neizmanto kodolu 5.6, t\u0101 jau pa\u0161laik izmanto WireGuard backport kodol\u0101 5.4. WireGuard ir <noindex><a rel=\"nofollow\" href=\"https:\/\/itsfoss.com\/wireguard\/\">jauna v\u0101rda noz\u012bme VPN industrij\u0101<\/a><\/noindex>, t\u0101d\u0113\u013c iek\u013cau\u0161ana <noindex><a rel=\"nofollow\" href=\"https:\/\/www.wireguard.com\/\">WireGuard<\/a><\/noindex> kodol\u0101 jau tagad sniedz priek\u0161roc\u012bbas Ubuntu 20.04 m\u0101ko\u0146a virzien\u0101.<\/p>\n<p>Labots <noindex><a rel=\"nofollow\" href=\"https:\/\/www.phoronix.com\/scan.php?page=news_item&amp;px=High-Threads-CFS-Quota-Fix\">CFS kvotu k\u013c\u016bda<\/a><\/noindex> un tagad daudzuzdevumu programmas var str\u0101d\u0101t \u0101tr\u0101k. Pievienots draiveris, kas \u013cauj str\u0101d\u0101t ar temperat\u016bras un sprieguma sensoriem Ryzen procesoru rind\u0101.<\/p>\n<p>Tas viss nav viss jaunums, kas par\u0101d\u012bjies kodol\u0101 5.4. Ar s\u012bk\u0101kiem p\u0101rskatiem var iepaz\u012bties vietn\u0113 <noindex><a rel=\"nofollow\" href=\"https:\/\/kernelnewbies.org\/Linux_5.4\">kernelnewbies.org<\/a><\/noindex> (ang\u013cu valod\u0101) un forum\u0101 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51881\">OpenNET<\/a><\/noindex> (krievu valod\u0101).<\/p>\n<h3>Kubernetes izmanto\u0161ana<\/h3>\n<p>\nCanonical ir \u012bstenojusi pilnu atbalstu Ubuntu 20.04 <noindex><a rel=\"nofollow\" href=\"https:\/\/ubuntu.com\/blog\/kubernetes-1-18-available-from-canonical\">Kubernetes 1.18<\/a><\/noindex> ar atbalstu <noindex><a rel=\"nofollow\" href=\"https:\/\/ubuntu.com\/kubernetes\/features\">Charmed Kubernetes<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/microk8s.io\/\">MicroK8s<\/a><\/noindex> un <noindex><a rel=\"nofollow\" href=\"https:\/\/ubuntu.com\/blog\/canonical-widens-kubernetes-support-with-kubeadm\">kubeadm<\/a><\/noindex>.<\/p>\n<p>Kubectl uzst\u0101d\u012b\u0161ana Ubuntu 20.04:<\/p>\n<pre><code class=\"plaintext\"># snap install kubectl --classic\n\nkubectl 1.18.0 from Canonical \u2713 installed<\/code><\/pre>\n<p><\/p>\n<h3>SNAP izmanto\u0161ana<\/h3>\n<p>\nCanonical turpina populariz\u0113t univers\u0101lo pakot\u0146u form\u0101tu \u2014 snap. Tas ir v\u0113l ac\u012bmredzam\u0101k Ubuntu 20.04 izlaidum\u0101. Ja m\u0113\u0123in\u0101siet palaist programmu, kas nav instal\u0113ta, vispirms tiks pied\u0101v\u0101ts to uzst\u0101d\u012bt ar:<\/p>\n<pre><code class=\"plaintext\"># snap install &lt;package&gt;<\/code><\/pre>\n<p>\n<img decoding=\"async\" alt=\"Kas jauns Ubuntu 20.04\" src=\"\/wp-content\/uploads\/2020\/04\/d9d5b34233f7b267e85fd83ca96a9544.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<h3>Uzlabots ZFS atbalsts<\/h3>\n<p>\nLai gan <noindex><a rel=\"nofollow\" href=\"https:\/\/www.realworldtech.com\/forum\/?threadid=189711&amp;curpostid=189841\">Linus Torvalds var nepatikt ZFS<\/a><\/noindex>, ta\u010du t\u0101 joproj\u0101m ir popul\u0101ra failu sist\u0113ma, un t\u0101s eksperiment\u0101lais atbalsts tika pievienots ar Ubuntu 19.10.<br \/>\nT\u0101 ir pietiekami \u0113rta un stabila datu glab\u0101\u0161anai, gan m\u0101jas arh\u012bvam, gan ar\u012b servera kr\u0101tuvei darb\u0101 (\"no kastes\" t\u0101 sp\u0113j vair\u0101k nek\u0101 LVM). ZFS atbalsta nodal\u012bjumu izm\u0113rus l\u012bdz 256 kvadriljonu Zettabaitiem (t\u0101d\u0113\u013c burts \"Z\" nosaukum\u0101) un var apstr\u0101d\u0101t failus l\u012bdz 16 Exabaitiem.<\/p>\n<p>ZFS veic datu integrit\u0101tes kontroli, \u0146emot v\u0113r\u0101 to, k\u0101 tie ir izvietoti disk\u0101. Rakst\u012b\u0161anas laik\u0101 kop\u0113\u0161anas funkcija garant\u0113, ka lietotie dati netiks p\u0101rrakst\u012bti. T\u0101 viet\u0101 jaun\u0101 inform\u0101cija tiek ierakst\u012bta jaun\u0101 blok\u0101, un failu sist\u0113mas metadati tiek atjaunin\u0101ti, lai nor\u0101d\u012btu uz to. ZFS \u013cauj izveidot snapshots (failu sist\u0113mas att\u0113lus), kas izseko izmai\u0146as failu sist\u0113m\u0101 un apmain\u0101s ar datiem, lai ietaup\u012btu diska vietu.<\/p>\n<p>ZFS pie\u0161\u0137ir katram failam uz diska kontrolsummu un past\u0101v\u012bgi p\u0101rbauda t\u0101 st\u0101vokli, balstoties uz to. Ja tiek konstat\u0113ts, ka fails ir boj\u0101ts, tas m\u0113\u0123in\u0101s autom\u0101tiski to atjaunot. Instal\u0101cijas programmat\u016br\u0101 Ubuntu par\u0101d\u012bj\u0101s atsevi\u0161\u0137s punkts, kas \u013cauj izmantot ZFS. S\u012bk\u0101k ar ZFS v\u0113sturi un t\u0101s iez\u012bm\u0113m var iepaz\u012bties emu\u0101r\u0101 <noindex><a rel=\"nofollow\" href=\"https:\/\/itsfoss.com\/what-is-zfs\/\">Tas ir FOSS<\/a><\/noindex>.<\/p>\n<h3>Uz redz\u0113\u0161anos Python 2.X<\/h3>\n<p>\nTre\u0161\u0101 Python versija tika ieviesta jau 2008. gad\u0101, bet pat 12 gadi izr\u0101d\u012bj\u0101s nepietiekami, lai b\u016btu projekti uz Python 2 adapt\u0113ti tai.<br \/>\nV\u0113l Ubuntu 15.10 notika m\u0113\u0123in\u0101jums atteikties no Python 2, ta\u010du t\u0101 atbalsts turpin\u0101j\u0101s. Un tagad, 2020. gada 20. apr\u012bl\u012b, izn\u0101ca <noindex><a rel=\"nofollow\" href=\"https:\/\/www.python.org\/downloads\/release\/python-2718\/\">Python 2.7.18<\/a><\/noindex>, kas ir p\u0113d\u0113j\u0101 Python 2 versija. Atjaunin\u0101jumi tam vairs netiks izlaisti.<\/p>\n<p>Ubuntu 20.04 vairs neatbalsta Python 2 un izmanto Python 3.8 k\u0101 noklus\u0113juma Python versiju. Diem\u017e\u0113l, pasaul\u0113 palicis daudz projektu, kas darbojas ar Python 2, un to p\u0101reja uz Ubuntu 20.04 var izr\u0101d\u012bties s\u0101p\u012bga.<\/p>\n<p>P\u0113d\u0113jo Python 2 versiju varat instal\u0113t ar vienu komandu:<\/p>\n<pre><code class=\"plaintext\"># apt install python2.7<\/code><\/pre>\n<p>\nPapildus Python 3.8 izstr\u0101d\u0101t\u0101ji var nov\u0113rt\u0113t atjaunin\u0101tu r\u012bku komplektu, kas ietver:<\/p>\n<ul>\n<li>MySQL 8,<\/li>\n<li>glibc 2.31,<\/li>\n<li>OpenJDK 11,<\/li>\n<li>PHP 7.4,<\/li>\n<li>Perl 5.30,<\/li>\n<li>Golang 1.14.<\/li>\n<\/ul>\n<p><\/p>\n<h3>Uz redz\u0113\u0161anos 32 bitiem<\/h3>\n<p>\nJau vair\u0101kus gadus Ubuntu nesniedz ISO att\u0113lus 32 bitu datoriem. Pa\u0161laik eso\u0161ie 32 bitu Ubuntu versiju lietot\u0101ji var\u0113s p\u0101riet uz Ubuntu 18.04, bet uz Ubuntu 20.04 atjaunin\u0101t vairs neb\u016bs iesp\u0113jams. Tas noz\u012bm\u0113, ja pa\u0161laik lietojat 32 bitu Ubuntu 18.04, j\u016bs var\u0113siet ar to palikt l\u012bdz 2023. gada apr\u012blim.<\/p>\n<h2>K\u0101 atjaunin\u0101t<\/h2>\n<p>\nAtjaunin\u0101t uz Ubuntu 20.04 no iepriek\u0161\u0113j\u0101m versij\u0101m ir vienk\u0101r\u0161i \u2014 pietiek izpild\u012bt sekojo\u0161as komandas:<\/p>\n<pre><code class=\"plaintext\"># sudo apt update &amp;&amp; sudo apt upgrade\n# sudo do-release-upgrade<\/code><\/pre>\n<p><\/p>\n<blockquote><p>Ar prieku inform\u0113jam, ka Ubuntu 20.04 LTS (Focal Fossa) jau ir pieejama k\u0101 att\u0113ls virtu\u0101laj\u0101m ma\u0161\u012bn\u0101m m\u016bsu <noindex><a rel=\"nofollow\" href=\"http:\/\/slc.tl\/-287K\">M\u0101ko\u0146platform\u0101<\/a><\/noindex>. Izveidojiet savu IT infrastrukt\u016bru, izmantojot jaun\u0101ko programmat\u016bru!<\/p><\/blockquote>\n<p>\n<b>UPD:<\/b> Ubuntu 19.10 lietot\u0101ji var\u0113s jau tagad atjaunin\u0101t uz 20.04, bet Ubuntu 18.04 lietot\u0101ji var\u0113s atjaunin\u0101t p\u0113c 20.04.1 izlai\u0161anas, kas pl\u0101nota 2020. gada 23. j\u016blij\u0101.<br \/>\n<br \/>Avots: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/selectel\/blog\/498526\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>23 \u0430\u043f\u0440\u0435\u043b\u044f \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 Ubuntu \u0432\u0435\u0440\u0441\u0438\u0438 20.04 \u0441 \u043a\u043e\u0434\u043e\u0432\u044b\u043c \u043d\u0430\u0437\u0432\u0430\u043d\u0438\u0435\u043c Focal Fossa, \u044f\u0432\u043b\u044f\u044e\u0449\u0438\u043c\u0441\u044f \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u043c \u0432\u044b\u043f\u0443\u0441\u043a\u043e\u043c Ubuntu \u0434\u043b\u044f \u0434\u043e\u043b\u0433\u043e\u0441\u0440\u043e\u0447\u043d\u043e\u0439 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 (LTS) \u0438 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0438\u0435\u043c Ubuntu 18.04 LTS, \u0432\u044b\u043f\u0443\u0449\u0435\u043d\u043d\u043e\u0439 \u0432 2018 \u0433\u043e\u0434\u0443. \u041d\u0435\u043c\u043d\u043e\u0433\u043e \u043f\u0440\u043e \u043a\u043e\u0434\u043e\u0432\u043e\u0435 \u0438\u043c\u044f. \u0421\u043b\u043e\u0432\u043e \u00abFocal\u00bb \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442 \u00ab\u0446\u0435\u043d\u0442\u0440\u0430\u043b\u044c\u043d\u0430\u044f \u0442\u043e\u0447\u043a\u0430\u00bb \u0438\u043b\u0438 \u00ab\u0441\u0430\u043c\u0430\u044f \u0432\u0430\u0436\u043d\u0430\u044f \u0447\u0430\u0441\u0442\u044c\u00bb, \u0442\u043e \u0435\u0441\u0442\u044c \u0441\u0432\u044f\u0437\u0430\u043d\u043e \u0441 \u043f\u043e\u043d\u044f\u0442\u0438\u0435\u043c \u0441\u0440\u0435\u0434\u043e\u0442\u043e\u0447\u0438\u044f, \u0446\u0435\u043d\u0442\u0440\u043e\u043c \u043a\u0430\u043a\u0438\u0445-\u043b\u0438\u0431\u043e \u0441\u0432\u043e\u0439\u0441\u0442\u0432, \u044f\u0432\u043b\u0435\u043d\u0438\u0439, \u0441\u043e\u0431\u044b\u0442\u0438\u0439, \u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":79250,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-79249","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"23 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