Tag Archives: Linux

Redis: Can’t open the log file: Read-only file system
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3 April 2019

Have a new Redis service which has to run alongside with one already existing During starting this new service – it fails with the Can’t open the log file: Read-only file system error, although /var/log and log file itself have correct permissions. The root cause was not very obvious so in this post – its… Read More: Redis: Can’t open the log file: Read-only file system0 (0) »

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JetBrains Upsource: installation, configuration on Linux with NGINX and SSL and PyCharm integration
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2 April 2019

Upsource is a self-hosted service from JetBrains for code reviews by teams of developers which can be integrated with any IDE from JetBrains. Is a Java-based application with Apache Cassandra as a backend for storing data and indexes. Minima requirements – 8 GiB memory on a host – not surprise at all. Up to 10… Read More: JetBrains Upsource: installation, configuration on Linux with NGINX and SSL… »

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What is: chroot – system call and utility in Linux
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23 March 2019

chroot() was added to the Version 7 Unix in 1979 and used for filesystem isolation. In fact, it’s the predecessor of the whole current containerization idea, just now there are namespaces and cgroups are used while earlier chroot was used to create an environment which is isolated from a host and can be used for… Read More: What is: chroot – system call and utility in Linux0… »

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Linux: telegram-desktop – no systray icon
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13 March 2019

Have the telegram-desktop installed via pacman on the Arch Linux. After starting – no systray’s icon present and thus can’t see new messages and even can’t exit in a normal way. This issue is not specific for the Arch Linux and happens on any Linux systems. Go to the Google and make search with “telegram linux… Read More: Linux: telegram-desktop – no systray icon0 (0) »

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VirtualBox: Nonexistent host networking interface, name ‘wlp13s0’
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11 March 2019

Have the ~/VirtualBox VMs directory copied from my old laptop to a new PC. Now during VM’s launch – VirtualBox says: Nonexistent host networking interface, name ‘wlp13s0’ (VERR_INTERNAL_ERROR). Result Code: NS_ERROR_FAILURE (0x80004005) Component: ConsoleWrap Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed} Check interfaces on the new PC: [simterm] $ ip a s 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue… Read More: VirtualBox: Nonexistent host networking interface, name ‘wlp13s0’0 (0) »

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Ansible: check if a package is installed on a remote system
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10 March 2019

Have a self-written letsencrypt role (see the Prometheus: RTFM blog monitoring set up with Ansible – Grafana, Loki, and promtail post). Before running the Let’s Encrypt client to obtain a new certificate – need to check if NGINX is installed on a remote host. Let’s use the package_facts module: … – name: “Check if NGINX is… Read More: Ansible: check if a package is installed on a remote… »

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Linux: LVM – pvcreate Device /dev/sdb4 excluded by a filter.
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9 March 2019

During new Linux set up – suddenly got a weird message. It happen just because of my carelessness and haste. Let’s create new partition: [simterm] [root@archiso ~]# pvcreate /dev/sdb4 Device /dev/sdb4 excluded by a filter. [/simterm] Check new partition size: [simterm] [root@archiso ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop0 7:0 0 476.7M… Read More: Linux: LVM – pvcreate Device /dev/sdb4 excluded by a filter.0… »

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OpenVPN – auto-start on Linux
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8 March 2019

I have an OpenVPN AS server running on EC2 in AWS and the openvnp client on my Arch Linux (см.OpenVPN: настройка OpenVPN Access Server и AWS VPC peering). Need to have it started and connection established after OS start. Will use the systemd, documentation is here>>>, will work with any other Linux-system. Client’s configs have… Read More: OpenVPN – auto-start on Linux0 (0) »

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Linux: The VirtualBox Linux kernel driver (vboxdrv) is either not loaded or there is a permission problem with /dev/vboxdrv
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5 March 2019

After each new VirtualBox installation – I’m stepping on the same rake again and again and have to go to Google to ask: The VirtualBox Linux kernel driver (vboxdrv) is either not loaded or there is a permission problem with /dev/vboxdrv Attempt to load vboxdrv manually also provides the error: [simterm] $ sudo modprobe vboxdrv… Read More: Linux: The VirtualBox Linux kernel driver (vboxdrv) is either not… »

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Android Studio: adb – INSTALL_FAILED_INSUFFICIENT_STORAGE
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4 March 2019

Proceeding fighting with our UI auto-tests 🙂 Two previous posts were really useful this time – Android Studio: установка на Linux и работа с Android Virtual Devices and Appium: Android Virtual Device, Original error: Condition unmet after 60159 ms и костыль. In general – tests works fine but sometimes gives me interesting issues. This time… Read More: Android Studio: adb – INSTALL_FAILED_INSUFFICIENT_STORAGE0 (0) »

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