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Plus, convert a few absolute URLs with a version number to relative URLs without versions. Signed-off-by: Alexey Palazhchenko <alexey.palazhchenko@gmail.com>
108 lines
3.1 KiB
Markdown
108 lines
3.1 KiB
Markdown
---
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title: Kernel
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desription: Linux kernel reference.
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---
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## Commandline Parameters
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Talos supports a number of kernel commandline parameters. Some are required for
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it to operate. Others are optional and useful in certain circumstances.
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Several of these are enforced by the Kernel Self Protection Project [KSPP](https://kernsec.org/wiki/index.php/Kernel_Self_Protection_Project/Recommended_Settings).
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**Required** parameters:
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- `talos.config`: the HTTP(S) URL at which the machine configuration data can be found
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- `talos.platform`: can be one of `aws`, `azure`, `container`, `digitalocean`, `gcp`, `metal`, `packet`, or `vmware`
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- `init_on_alloc=1`: required by KSPP
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- `slab_nomerge`: required by KSPP
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- `pti=on`: required by KSPP
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**Recommended** parameters:
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- `init_on_free=1`: advised by KSPP if minimizing stale data lifetime is
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important
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### Available Talos-specific parameters
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#### `panic`
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The amount of time to wait after a panic before a reboot is issued.
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Talos will always reboot if it encounters an unrecoverable error.
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However, when collecting debug information, it may reboot too quickly for
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humans to read the logs.
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This option allows the user to delay the reboot to give time to collect debug
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information from the console screen.
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A value of `0` disables automtic rebooting entirely.
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#### `talos.config`
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The URL at which the machine configuration data may be found.
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#### `talos.platform`
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The platform name on which Talos will run.
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Valid options are:
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- `aws`
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- `azure`
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- `container`
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- `digitalocean`
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- `gcp`
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- `metal`
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- `packet`
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- `vmware`
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#### `talos.board`
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The board name, if Talos is being used on an ARM64 SBC.
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Supported boards are:
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- `bananapi_m64`: Banana Pi M64
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- `libretech_all_h3_cc_h5`: Libre Computer ALL-H3-CC
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- `rock64`: Pine64 Rock64
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- `rpi_4`: Raspberry Pi 4, Model B
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#### `talos.hostname`
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The hostname to be used.
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The hostname is generally specified in the machine config.
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However, in some cases, the DHCP server needs to know the hostname
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before the machine configuration has been acquired.
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Unless specifically required, the machine configuration should be used
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instead.
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#### `talos.interface`
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The network interface to use for pre-configuration booting.
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If the node has multiple network interfaces, you may specify which interface
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to use by setting this option.
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Keep in mind that Talos uses indexed interface names (eth0, eth1, etc) and not
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"predictable" interface names (enp2s0) or BIOS-enumerated (eno1) names.
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#### `talos.shutdown`
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The type of shutdown to use when Talos is told to shutdown.
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Valid options are:
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- `halt`
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- `poweroff`
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#### `talos.network.interface.ignore`
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A network interface which should be ignored and not configured by Talos.
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Before a configuration is applied (early on each boot), Talos attempts to
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configure each network interface by DHCP.
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If there are many network interfaces on the machine which have link but no
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DHCP server, this can add significant boot delays.
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This option may be specified multiple times for multiple network interfaces.
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