Download the check script
Changes configwget -qO check_x86-64_psabi.sh https://dl.xanmod.org/check_x86-64_psabi.shExpect: check_x86-64_psabi.sh appears in the current directory.
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03 / FIELD NOTES
See the CPU x86-64-v level
Download, inspect, and run the upstream CPU check before choosing a supported kernel package.
Why this way
XanMod is optional. Check the CPU level before you touch a kernel package. Guessing v3 on a v2 host wastes a reboot; this site refuses to install a kernel from a field-note page.
When to use
You are about to install an XanMod kernel and need v2, v3, or v4.
When not to
This does not install a kernel. Do not treat the script as an installer.
Prerequisites
- wget
- x86_64 CPU
- outbound HTTPS to dl.xanmod.org
Steps
Review the downloaded script
Read-onlyless check_x86-64_psabi.shExpect: Read the script before granting execution. Press q to leave less.
Make it executable
Changes configchmod +x check_x86-64_psabi.shExpect: ls -l shows the execute bit.
Print the x86-64-v level
Changes config./check_x86-64_psabi.sh || trueExpect: Stdout shows x86-64-vN. The exit status is level+1 (not a failure). Match the result to packages listed upstream; a v4 CPU can use a compatible v3 package.
What it changes
Downloads and executes third-party code after you review it; no kernel installation in this note.
Related
Sources
{
"slug": "xanmod-psabi",
"risk": "caution",
"tags": [
"xanmod",
"bbr",
"cpu"
],
"updated": "2026-10-30",
"pathIndex": null,
"why": "XanMod is optional. Check the CPU level before you touch a kernel package. Guessing v3 on a v2 host wastes a reboot; this site refuses to install a kernel from a field-note page.",
"steps": [
{
"command": "wget -qO check_x86-64_psabi.sh https://dl.xanmod.org/check_x86-64_psabi.sh",
"risk": "caution"
},
{
"command": "less check_x86-64_psabi.sh",
"risk": "safe"
},
{
"command": "chmod +x check_x86-64_psabi.sh",
"risk": "caution"
},
{
"command": "./check_x86-64_psabi.sh || true",
"risk": "caution"
}
]
}