查看完整版本 : 原來ubuntu冇set root pw，要手動打command set

set pw of root然後先至可以su

[url]https://www.cyberciti.biz/faq/linux-set-change-password-how-to/[/url]

[url]https://www.cyberciti.biz/faq/linux-delete-user-password/[/url]

debian會提示你set root pw，ubuntu完全冇提示，難怪每次都su唔到，失敗

ubuntu su完同tty console一樣，debian的su係受限，權限弱過tty console logined as root

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[quote]原帖由 [i]煙民母親生賤種[/i] 於 2021-8-8 07:38 PM 發表 [url=https://computer.discuss.com.hk/redirect.php?goto=findpost&pid=538993252&ptid=30095282][img]https://computer.discuss.com.hk/images/common/back.gif[/img][/url]
我記得 install 時規定要你 set root password 。 [/quote]
絕對冇，tty 用root身份login唔到，因為未set pw

我個ubuntu 2016定2017年裝，一路都su唔到，用普通user + sudo

啱先裝完fedora，安裝果陣根本唔駛set root pw，亦都冇要求set root pw。安裝完，冇set root pw都正常使用到

家陣triple boot：debian / ubuntu / fedora

[img]https://i.imgur.com/C6DLsr6.png[/img]




[img]https://i.imgur.com/6DfO1aI.png[/img]




[img]https://i.imgur.com/M81Mj1D.png[/img]




[img]https://i.imgur.com/89DN82p.png[/img]




[img]https://i.imgur.com/akumai5.png[/img]

之前裝debian，安裝過程要求set root pw


fedora同ubuntu冇，係自己事後用pwd set

[quote]原帖由 [i]煙民母親生賤種[/i] 於 2021-8-8 07:38 PM 發表 [url=https://www.discuss.com.hk/redirect.php?goto=findpost&pid=538993252&ptid=30095282][img]https://www.discuss.com.hk/images/common/back.gif[/img][/url]
我記得 install 時規定要你 set root password 。 [/quote]
during install time Ubuntu's root account is deactivated by default. you can reactivate it by setting up the password for the account.