Failed to execute /init (error -7)

redacted · 11-14-2019, 06:43 PM

kernel version 4.18.20

I am porting a 4.15 custom kernel to 4.18. It compiles cleanly. It fails early in the boot process with:

Failed to execute /init (error -7)
Starting init: /bin/sh exists but couldn't execute it (error -7)

A kernel built from the same source code without my modifications boots and runs.

According to "errno" error -7 is "E2BIG 7 Argument list too long"

Any ideas what might cause this failure mode?

business_kid · 11-15-2019, 07:15 AM

Are we 32/64 bit? X86_64 or something else? OS? Anything else odd?

One thing to check is /lib/of.so, and /lib/ld-lsb.so. They should be symlonks pointing at /lib/ld-<version>.so. On slackware and other systems, it's not /lib, but /lib64.

It it's using ld-lsb.so and that symlonk it throws a soutrious error.

redacted · 11-15-2019, 11:51 AM

Quote:

Originally Posted by business_kid

Are we 32/64 bit? X86_64 or something else? OS? Anything else odd?

x86_64. Ubuntu 18.04.2 LTS.

The unmodified 4.18.20 kernel boots and runs on the same system, so I don't think /lib/of.so is the problem.

business_kid · 11-16-2019, 02:07 AM

Just check that you have /lib/ld.so & /lib/ld-lsb.so as symlinks.

The boot sequence is: The kernel boots, United is loaded, it mounts / and runs init. Check the logs and see what's going on.