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I have an old Lenovo ThinkPad T410 (i.e. no UEFI) and I am playing a little bit around with manually writing GRUB2 config files. I noticed that GRUB2's command 'halt' does not halt the system. Instead it kind of reboots it. I notice, there is a difference to rebooting, though. When I run the command reboot in a menuentry, for a split-second I can see anything I 'echo' just before. When running 'halt' however, it is executed so fast, that I can not even see the 'echo'ed message.
Same behaviour when insmod'ing halt and/or the acpi module explicitly (they are not loaded by default, apparently, but halt functions nevertheless). In the BIOS I find nothing about APCI explicitly. I played around with some power managment settings and disabling AMT, but no change. Running 'halt --no-apm' results in the same behaviour, too. Also, MBR/GPT makes no difference.
The current archiso that uses 'syslinux' has no problem in shutting down the system, and no OS I had before had any problems.
I was searching the web and the forum up and down, but I can not solve the issue. Does anybody have any ideas? Because this kinda drives me crazy.
Edit: Some typos and similiar stuff.
Last edited by kokoro (2023-09-10 20:26:46)
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