我从软件更新程序收到以下错误消息:
The upgrade needs a total of 74,6 M free space on disk '/boot'. Please free at least an additional 68,3 M of disk space on '/boot'. Empty your trash and remove temporary packages of former installations using 'sudo apt-get clean'.
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如何获得更多磁盘空间?我有
df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/xubuntu--vg-root 454G 13G 418G 3% /
none 4,0K 0 4,0K 0% /sys/fs/cgroup
udev 1,9G 4,0K 1,9G 1% /dev
tmpfs 384M 1,3M 383M 1% /run
none 5,0M 0 5,0M 0% …Run Code Online (Sandbox Code Playgroud) 为什么在 Ubuntu 上安装 Sagemath 失败?我试过
\njaakko@jaakko-Aspire-E1-572:~$ sudo apt install sagemath-common\n[sudo] password for jaakko: \nReading package lists... Done\nBuilding dependency tree \nReading state information... Done\nThe following NEW packages will be installed:\n sagemath-common\n0 upgraded, 1 newly installed, 0 to remove and 8 not upgraded.\nNeed to get 16,2 MB of archives.\nAfter this operation, 205 MB of additional disk space will be used.\nGet:1 http://fi.archive.ubuntu.com/ubuntu focal/universe amd64 sagemath-common all 9.0-1ubuntu4 [16,2 MB]\nFetched 16,2 MB in 4s (3\xe2\x80\xaf888 kB/s) \nSelecting previously unselected package sagemath-common.\n(Reading database ... …Run Code Online (Sandbox Code Playgroud) 我尝试通过命令行安装 sagemath 但遇到了问题。难道我做错了什么?我有 Ubuntu 13.10。
jaakko@jaakko-VPCEB1S1E:~$ sudo apt-add-repository -y ppa:aims/sagemath
gpg: keyring `/tmp/tmp7y1mxl/secring.gpg' created
gpg: keyring `/tmp/tmp7y1mxl/pubring.gpg' created
gpg: requesting key BE796FF2 from hkp server keyserver.ubuntu.com
gpg: /tmp/tmp7y1mxl/trustdb.gpg: trustdb created
gpg: key BE796FF2: public key "Launchpad PPA for AIMS" imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
OK
jaakko@jaakko-VPCEB1S1E:~$ sudo apt-get update
Ign http://fi.archive.ubuntu.com saucy InRelease
Ign http://fi.archive.ubuntu.com saucy-updates InRelease
Ign http://fi.archive.ubuntu.com saucy-backports InRelease
Ign http://ppa.launchpad.net saucy InRelease
Hit http://fi.archive.ubuntu.com saucy Release.gpg
Hit http://fi.archive.ubuntu.com saucy-updates Release.gpg
Ign …Run Code Online (Sandbox Code Playgroud) 我尝试在 Ubuntu 上安装 WhatsApp Web。我有一台 Nexus 5,我的 WhatsApp 运行良好。我试图将该软件安装到我的 Ubuntu 上,但它要求提供二维码。我用手机拍了一张。但我不知道如何告诉 WhatsApp 网站我已经拍了照片。任何人都可以帮忙吗?