23 APR Kuburitswa kweUbuntu vhezheni 20.04, codenamed Focal Fossa, ndiyo inotevera yenguva refu rutsigiro (LTS) kuburitswa kweUbuntu uye kuenderera kweUbuntu 18.04 LTS yakaburitswa muna 2018.
Zvishoma nezvezita rekodhi. Izwi rekuti "Focal" rinoreva "nzvimbo yepakati" kana "inonyanya kukosha chikamu", ndiko kuti, inosanganiswa nepfungwa yekutarisa, nzvimbo yepakati pezvipi zvivakwa, zviitiko, zviitiko, uye "Fossa" ine mudzi "FOSS" (Yemahara uye Yakavhurika-Source Software - yemahara uye yakavhurika sosi software) uye tsika yekupa mazita shanduro dzeUbuntu mushure memhuka zvinoreva. - chikara chikuru chinodya chikara kubva kumhuri yecivet kubva kuchitsuwa cheMadagascar.
Vagadziri vari kuisa Ubuntu 20.04 seyakakura uye yakabudirira gadziriso nerutsigiro rwemakore mashanu anotevera ematafura nemaseva.
Ubuntu 20.04 yaive kuenderera kune musoro kweUbuntu 19.04 "Disco Dingo" uye Ubuntu 19.10 "Eoan Ermine". Mushanduro dzedesktop, zvichitevera mafambiro azvino, rima dingindira rakaonekwa. Nekudaro, muUbuntu 20.04 pane matatu sarudzo dzeyakajairwa Yaru theme:
- Chiedza,
- Rima,
- Zvisizvo.
Iyo Amazon app yakabviswa zvakare. Ubuntu 20.04 inoshandisa yazvino vhezheni seyakagadzika graphical shell .
Kuchinja kukuru
Ubuntu 20.04 yakavakirwa pa5.4 kernel, yakaburitswa munaNovember 24, 2019. Iyi vhezheni yakaunza akati wandei akakosha magadzirirwo, ayo atichakurukura pazasi.
lz4
Canonical mainjiniya akaedza akasiyana compression algorithms eiyo kernel uye initramfs bhutsu mufananidzo, kuyedza kutsvaga kutengeserana pakati peakanakisa compression (diki faira saizi) uye decompression nguva. Iyo isingarasikike compression algorithm lz4 yakaratidza zvinonyanya kuoneka mhedzisiro uye yakawedzerwa kuUbuntu 19.10, ichiibvumira kudzikisa nguva dzebhutsu zvichienzaniswa nekuburitswa kwakapfuura (Ubuntu 18.04 uye 19.04). Iyo yakafanana algorithm icharamba iri muUbuntu 20.04.
Linux Lockdown Kernel
Iyo Lockdown ficha inosimudzira kuchengetedzeka kweLinux kernel nekudzora kupinda kune mabasa ayo anogona kubvumira kupokana kwekodhi kuuraya kuburikidza nekodhi yakafumurwa nemashandisirwo emushandisi. Zvichitaurwa zviri nyore, kunyangwe iyo midzi superuser account haigone kushandura kernel kodhi. Izvi zvinokutendera kuti udzikise kukuvadzwa kubva pakurwiswa kunogona kuitika, kunyangwe iyo midzi account yakanganiswa. Nokudaro, kuchengetedzwa kwese kwehutano hwekushanda kunowedzerwa.
exFAT
Iyo Microsoft FAT faira system haibvumire kutamisa mafaera akakura kupfuura 4 GB. Kuti ukunde chipingamupinyi ichi, Microsoft yakagadzira iyo exFAT faira system (kubva kuChirungu Yakawedzerwa FAT - "yakawedzerwa FAT"). Iye zvino unogona kufomati, semuenzaniso, USB drive kune exFAT uchishandisa exFAT faira system.
WireGuard
Nepo Ubuntu 20.04 isingashandise iyo 5.6 kernel, zvirinani kwete nekukurumidza, inotoshandisa iyo WireGuard backport mu5.4 kernel. WireGuard ndiye , saka kubatanidzwa mu kernel yatopa Ubuntu 20.04 mukana mukutungamira kwegore.
Yakagadziriswa uye ikozvino ma-multi-threaded applications anogona kumhanya nekukurumidza. Mutyairi akawedzerwa iyo inokutendera kuti ushande nekushisa uye voltage sensors yeRyzen processors.
Izvi hazvisi zvese zvitsva zvakaonekwa mu kernel 5.4. Ongororo yakadzama inogona kuwanikwa pane sosi (muChirungu) uye paforamu (muchiRussia).
Kushandisa Kubernetes
Canonical yaita rutsigiro rwakazara muUbuntu 20.04 nerutsigiro , ΠΈ .
Kuisa Kubectl pa Ubuntu 20.04:
# snap install kubectl --classic
kubectl 1.18.0 from Canonical β installedKushandisa SNAP
Canonical inoenderera mberi nekusimudzira yepasirese package fomati - snap. Izvi zvinotonyanya kuoneka nekuburitswa kweUbuntu 20.04. Kana iwe ukaedza kumhanyisa chirongwa chisina kuisirwa, saka chekutanga pane zvese iwe uchapihwa kuti uiise uchishandisa:
# snap install <package>
Yakavandudzwa ZFS rutsigiro
Kunyange zvakadaro , ichiri yakakurumbira faira system uye rutsigiro rwekuyedza rwakawedzerwa neUbuntu 19.10.
Iyo iri nyore uye yakagadzikana yekuchengetedza dhata, iyo imwechete yekuchengetera imba kana sevha yekuchengetedza kubasa ("kunze kwebhokisi" inogona kuita zvinopfuura imwechete LVM). ZFS inotsigira saizi yekuparadzanisa kusvika ku256 quadrillion Zettabytes (saka iyo "Z" muzita) uye inogona kubata mafaera anosvika gumi nematanhatu Exabytes muhukuru.
ZFS inoita data kutendeseka cheki zvichienderana nemaisirwo avanoitwa padhisiki. Iyo yekukopa-pa-kunyora ficha inovimbisa kuti iyo data iri kushandiswa haina kunyorwa. Pane kudaro, ruzivo rutsva rwunonyorerwa kubhuroka nyowani uye iyo faira system metadata inovandudzwa kuti inongedze kwairi. ZFS inokutendera iwe kuti ugadzire snapshots (faira system snapshots) inoteedzera shanduko dzakaitwa kune iyo faira system uye kuchinjana data nayo kuchengetedza disk nzvimbo.
ZFS inopa cheki kune imwe neimwe faira pane dhisiki uye inogara ichitarisa mamiriro ayo pamusoro payo. Kana iyo ikaona kuti faira yakakuvadzwa, inoedza kuigadzirisa. Iyo Ubuntu installer ikozvino ine yakasarudzika sarudzo inobvumidza iwe kushandisa ZFS. Unogona kuverenga zvakawanda nezve nhoroondo yeZFS uye maficha ayo mublog .
Kwakanaka Python 2.X
Iyo yechitatu vhezheni yePython yakaunzwa kumashure muna 2008, asi kunyangwe makore gumi nemaviri akange asina kukwana kuti Python 12 mapurojekiti ajairane nawo.
Kudzoka kuUbuntu 15.10, kuedza kwakaitwa kusiya Python 2, asi rutsigiro rwayo rwakaenderera mberi. Uye zvino Kubvumbi 20, 2020 yakabuda , iyo ichangoburwa yebazi rePython 2. Hakuzovi nezvimwe zvigadziriso zvayo.
Ubuntu 20.04 haichatsigire Python 2 uye inoshandisa Python 3.8 seyo yakasarudzika vhezheni yePython. Nehurombo, kune akawanda mapurojekiti ePython 2 asara munyika, uye kwavari shanduko kuenda kuUbuntu 20.04 inogona kurwadza.
Unogona kuisa yazvino vhezheni yePython 2 nemurairo mumwe chete:
# apt install python2.7Pamusoro pePython 3.8, vagadziri vanogona kunakidzwa neyakagadziridzwa seti yezvishandiso zvinosanganisira:
- MySQL 8
- glibc 2.31,
- OpenJDK 11
- PHP 7.4
- Perl 5.30
- Chikamu 1.14.
Zvakanaka 32 bits
Kwemakore akati wandei ikozvino, Ubuntu haina kupa ISO mifananidzo ye32-bit makomputa. Parizvino, vashandisi varipo ve32-bit shanduro dzeUbuntu vanogona kukwidziridza kuUbuntu 18.04, asi havachakwanisa kukwidziridza kuUbuntu 20.04. Ndokunge, kana uri kushandisa 32-bit Ubuntu 18.04, unogona kugara nayo kusvika Kubvumbi 2023.
Nzira yekuvandudza
Kukwidziridza kuUbuntu 20.04 kubva kushanduro dzakapfuura zviri nyore semapeya ekushevedzera - ingo mhanya unotevera mirairo:
# sudo apt update && sudo apt upgrade
# sudo do-release-upgradeIsu tinofara kuzivisa kuti Ubuntu 20.04 LTS (Focal Fossa) yatovepo semufananidzo wemashini chaiwo mune yedu. . Gadzira yako yako chaiyo IT zvivakwa uchishandisa yazvino software!
UPS: Vashandisi veUbuntu 19.10 vachakwanisa kukwidziridza kusvika pa20.04 izvozvi, uye vashandisi veUbuntu 18.04 vachakwanisa kusimudzira mushure mekuburitswa kwe20.04.1, iyo yakarongerwa kuburitswa muna Chikunguru 23, 2020.
Source: www.habr.com