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On 3/17/20 4:16 AM, Neil Bothwick wrote: |
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> On Tue, 17 Mar 2020 03:00:59 -0500, Dutch Ingraham wrote: |
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> |
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>> Also from [1], with emphasis added "30_os-prober this script uses |
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>> **os-prober to search for Linux** and other operating systems and places |
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>> the results in the GRUB 2 menu. |
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>> |
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>> A review of the scripts 10_linux and 30_os-prober supplied by Gentoo |
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>> with the grub and os-prober packages seems to confirm the Ubuntu |
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>> documentation's accuracy. |
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>> |
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>> Regardless of which script is responsible, the problem remains that |
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>> running 'grub-mkconfig -o /boot/grub/grub.cfg' under the circumstances |
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>> outlined in my original post should find the other Linux operating |
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>> systems, but doesn't. |
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> |
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> You're right, either things have changed since the days I used GRUB |
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> extensively or I am losing it. No, that's not a multiple choice question! |
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Well, you wouldn't be the first to begin losing it! I sent the original |
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question before running things through strace, so.... (It wasn't |
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particularly helpful.) |
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> |
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> Have you tried running the script with "sh -x" to see just what it is |
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> doing? |
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It calls a helper script and exits successfully. |
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I wonder if it could be this part |
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> |
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> if ! command -v os-prober > /dev/null || ! command -v linux-boot-prober >/dev/null ; then |
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> # missing os-prober and/or linux-boot-prober |
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> exit 0 |
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> fi |
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Running `command -v os-prober' returns '/usr/bin/os-prober' |
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> |
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> If the os-prober command is missing the script will fail successfully, as |
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> you experience. Is sys-boot/os-prober installed? |
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> |
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> |
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Yes, it is installed as noted above, and, if I mount the partitions |
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manually, os-prober will find them. |
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I'm fairly certain I am missing one open and obvious thing, but can't |
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see it. Here is a list of things I have tried, mainly for |
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thread-completeness purposes: |
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1. Removed grub and op-prober packages then wiped all residual config files. |
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2. Reinstalled both, enabling the 'mount' use flag on grub. |
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3. Confirmed /usr/bin/os-prober and all /etc/grub.d/{scripts} are in |
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place and executable. |
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4. Even though it is the default, added GRUB_DISABLE_OS_PROBER=false to |
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/etc/default/grub. |
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5. Even though it is the default, set GRUB_PLATFORMS="pc" in make.conf. |
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On a fairly routine set-up (MBR/BIOS with four ext4 primary partitions) |
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I should be able to just set the mount use flag on grub, install grub |
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and os-prober, run 'grub-mkconfig -o /boot/grub/grub.cfg' and it should |
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just detect all operating systems and write the config, right? RIGHT? |
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