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kv1dr
Asked: 2012-08-27 22:56:32 +0800 CST

os-prober doesn't find Arch Linux until I manually mount Arch Linux partition

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Title says everything. Here is output of Boot info script: http://paste.ubuntu.com/1169338/

sudo os-prober returns only Windows partition:

sudo os-prober
/dev/sda2:Windows 7 (loader):Windows:chain

If I manually mount Arch Linux partition with Nautilus, sudo os-prober returns Windows and also Arch Linux partition:

sudo os-prober 
/dev/sda2:Windows 7 (loader):Windows:chain
/dev/sda6::Arch:linux

If os-prober don't find Arch Linux partition, Arch Linux don't show on the Grub2, so everytime kernel in Ubuntu is updated I have to manually mount Arch Linux partition and run sudo update-grub. Does anyone have any idea how to solve this problem?

P.S.: I use Ubuntu 12.04 LTS

12.04

2 Answers

  1. This is more of a workaround than a real solution, but if you add your arch partition to /etc/fstab, it will always be mounted, so the updates won't mess it up.

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  2. According to the Arch Wiki you have to mount the partition first which contains the other systems, than you should remake your grub.cfg.
    On Ubuntu it should be grub-install and on Arch it should be grub-mkconfig -o /boot/grub/grub.cfg.

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