主页 / user-172367

Merlijn Sebrechts's questions

Martin Hope
Merlijn Sebrechts
Asked: 2024-09-24 17:40:42 +0800 CST
  • 9

从 Ubuntu 24.04 开始，我找不到关闭 Bose 耳机的耳机模式的方法。

在较旧的 Ubuntu 版本中，在“设置”中，我可以选择将耳机用作 A2DP 或耳机模式。但是，在 Ubuntu 24.04 中我不再有此选项。我只得到一个“免提”选项，如果我选择该选项，我只能在耳机模式编解码器之间切换。

在此处输入图片描述

（home这是我的耳机的名字）

sound
Martin Hope
Merlijn Sebrechts
Asked: 2016-08-05 03:28:55 +0800 CST
  • 1

我有一个 MAAS 集群，其中的机器与两个网络相连。一个用于 PXE 引导的“控制”网络和一个用于通信的“数据”网络。我的 Juju 客户端只能访问“数据”网络。这两个网络都完全由 MAAS（DHCP 和 DNS）管理。

当我引导时，Juju 客户端尝试使用其控制网络 IP 连接到机器，从而引发connection timed out错误。如何告诉 Juju 使用“数据”网络 ip？

[juju 1.25..，MAAS 1.9..]

networking
Martin Hope
Merlijn Sebrechts
Asked: 2015-04-25 01:53:40 +0800 CST
  • 1

您可以通过运行来启动节点管理器实例yarn-daemon.sh start nodemanager。如果你在这种情况下做一份新贵的工作，你有两个问题：

  1. 该yarn-daemon.sh脚本将不断执行，因为 respawn 检查进程是否死亡，并且 yarn-daemon.sh 脚本在启动 yarn 后死亡。
  2. service nodemanager stop命令什么都不做，因为 upstart 认为进程已经停止。

我如何制作一个在崩溃后重新启动纱线（或另一个 hadoop 守护进程）的新贵服务？

upstart
Martin Hope
Merlijn Sebrechts
Asked: 2015-03-30 11:57:38 +0800 CST
  • 10

如何备份我的 Ubuntu 手机，以便在恢复出厂设置后将其恢复到相同状态？要指定，我正在寻找以下内容：

  • 备份配置
  • 备份应用程序
  • 备份应用配置
  • 备份文件

复制/home/phablet/文件夹会保存文件，但是这样是否也保存了所有配置文件和程序？

ubuntu-touch
Martin Hope
Merlijn Sebrechts
Asked: 2015-03-30 11:40:51 +0800 CST
  • 1

所以，我正在弄乱我的 bq ubuntu 手机，试图安装 libreoffice但我遇到了障碍。Libreoffice 不在档案中！

Ubuntu手机上有什么档案？我可以“升级”到包含 libreoffice 的档案吗？

这是 /etc/apt/sources.list

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

deb http://derived.archive.canonical.com/ubuntu-rtm/ 14.09 main restricted
deb-src http://derived.archive.canonical.com/ubuntu-rtm/ 14.09 main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://derived.archive.canonical.com/ubuntu-rtm/ 14.09-updates main restricted
deb-src http://derived.archive.canonical.com/ubuntu-rtm/ 14.09-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://derived.archive.canonical.com/ubuntu-rtm/ 14.09 universe
deb-src http://derived.archive.canonical.com/ubuntu-rtm/ 14.09 universe
deb http://derived.archive.canonical.com/ubuntu-rtm/ 14.09-updates universe
deb-src http://derived.archive.canonical.com/ubuntu-rtm/ 14.09-updates universe

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
# deb http://derived.archive.canonical.com/ubuntu-rtm/ 14.09-backports main restricted universe
# deb-src http://derived.archive.canonical.com/ubuntu-rtm/ 14.09-backports main restricted universe

deb http://derived.archive.canonical.com/ubuntu-rtm/ 14.09-security main restricted
deb-src http://derived.archive.canonical.com/ubuntu-rtm/ 14.09-security main restricted
deb http://derived.archive.canonical.com/ubuntu-rtm/ 14.09-security universe
deb-src http://derived.archive.canonical.com/ubuntu-rtm/ 14.09-security universe
# deb http://derived.archive.canonical.com/ubuntu-rtm/ 14.09-security multiverse
# deb-src http://derived.archive.canonical.com/ubuntu-rtm/ 14.09-security multiverse

下面是搜索 apt for libreoffice 的输出：

 apt-cache search libreoffice
hunspell-ru - Russian dictionary for hunspell
hyphen-af - Afrikaans hyphenation patterns for LibreOffice
hyphen-ca - Catalan hyphenation patterns for LibreOffice
hyphen-de - German hyphenation patterns for LibreOffice
hyphen-fr - French hyphenation patterns for LibreOffice
hyphen-hr - Croatian hyphenation pattern for LibreOffice
hyphen-hu - Hungarian hyphenation patterns for LibreOffice
hyphen-it - Italian hyphenation patterns for LibreOffice
hyphen-ro - Romanian hyphenation patterns for LibreOffice
hyphen-sl - Slovenian hyphenation patterns for LibreOffice
hyphen-sr - Serbian (Cyrillic) hyphenation patterns for LibreOffice
hyphen-sv - Swedish hyphenation patterns for LibreOffice
hyphen-zu - Zulu hyphenation patterns for LibreOffice
myspell-af - Afrikaans dictionary for myspell
myspell-ca - Catalan dictionary for myspell
myspell-en-gb - English_british dictionary for myspell
myspell-en-us - English_american dictionary for myspell
myspell-en-za - English_southafrican dictionary for myspell
myspell-hr - Croatian dictionary for myspell
myspell-it - Italian dictionary for myspell
myspell-sw - Swahili dictionary for myspell
myspell-th - Thai dictionary for myspell
mythes-ca - Catalan Thesaurus for LibreOffice
mythes-cs - Czech Thesaurus for LibreOffice
mythes-en-us - English Thesaurus for LibreOffice
mythes-fr - French Thesaurus for LibreOffice
mythes-hu - Hungarian Thesaurus for LibreOffice
mythes-ne - Nepali Thesaurus for LibreOffice
mythes-ro - Romanian Thesaurus for LibreOffice
mythes-ru - Russian Thesaurus for LibreOffice
mythes-sk - Slovak Thesaurus for LibreOffice/OpenOffice.org
unity-scope-home - Home scope that aggregates results from multiple scopes
ubuntu-touch
Martin Hope
Merlijn Sebrechts
Asked: 2015-03-29 12:02:59 +0800 CST
  • 1

我不确定我是否以正确的方式使用它。我有一个类为相同的关系定义required_keys和provide_data。以下代码provide_data在关系加入/更改时执行，但不执行关系集namenode_sshkey。如果我删除该required_keys行，代码突然工作（但我不能使用此类来指定关系所需的数据）。

[...]
    {
        'service': 'namenode',
        'ports': [9000, 50070],  # ports to open after start
        'provided_data': [
            NamenodeRelation()
        ],
        'required_data': [
            NamenodeRelation(),
            {'role' : 'namenode', 'command' : 'hadoop-daemon.sh'}
        ],
        'data_ready': [
            configure_namenode,
            helpers.render_template(
                 source='upstart.conf',
                 target='/etc/init/namenode.conf')
        ],
    },
[...]


class NamenodeRelation(RelationContext):
    name = 'namenode'
    interface = 'dfs'

    def __init__(self, *args, **kwargs):
        self.required_keys = ['slave_IP', 'private-address']
        RelationContext.__init__(self,name=self.name, *args, **kwargs)

    def provide_data(self):
        return {'namenode_sshkey' : get_ssh_key() }

这种行为是故意的还是错误？

juju