Timeline for file /proc/cmdline is empty
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
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| Nov 10, 2019 at 0:00 | vote | accept | MayAccer | ||
| Nov 10, 2019 at 0:00 | answer | added | MayAccer | timeline score: 1 | |
| Nov 7, 2019 at 7:47 | comment | added | MayAccer |
before trying to read the cmdfile i mount proc with mount -t proc none /proc, and i can attest that it was mounted correctly as the directory is populated correctly.
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| Nov 7, 2019 at 7:08 | comment | added | telcoM |
You're within initramfs, so have you mounted the /proc filesystem yet at this point?
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| Nov 7, 2019 at 0:23 | comment | added | MayAccer |
I'm not using grub, but i tried with it passing the arguments in the grub shell: linux (hd0,x)/boot/vmlinuz-4.19-80 flags; initrd (hd0,x)/boot/initrd-4.19-80; boot But the flags didn't appeared inside /proc/cmdline, which was empty
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| Nov 6, 2019 at 23:41 | comment | added | icarus |
At least with grub, you would expect to end up with a line like linux /filename1 param1 param2 param3 and a second initrd /filename2 to tell grub to load a kernel from filename1 and the initial ramdisk from filename2. The param1 param2 param3 stuff would go into memory and be accessed by the /proc/cmdline file. So are you providing this information, either by the commands you are giving to grub directly or via the grub.cfg file?
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| Nov 6, 2019 at 22:47 | comment | added | MayAccer | no, there's no /proc/config.gz, but i'm using the pre-compiled libre-linux from freesh, and in their site they give the config: linux-libre.fsfla.org/pub/linux-libre/freesh/configs/4.19/… | |
| Nov 6, 2019 at 22:36 | comment | added | Arkadiusz Drabczyk |
It might be that parameters are passed in device tree or that booting parameters are hardcoded. Does /proc/config.gz exist?
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| Nov 6, 2019 at 22:32 | history | asked | MayAccer | CC BY-SA 4.0 |