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kenmux
n00b
Joined: 13 Apr 2014
Posts: 59
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 Posted: Fri Dec 23, 2016 3:08 am Post subject: Problem of dual-boot lubuntu 16.04 with gentoo |
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Hi all,
These days I ran into an issue related with dual-boot lubuntu with gentoo.
I have 5 partitions:/dev/sda1~/dev/sda5:
| Code: | Partition Description
/dev/sda1 BIOS boot partition
/dev/sda2 Boot partition
/dev/sda3 Swap partition
/dev/sda4 Root partition
/dev/sda5 Lubuntu 16.4 |
At the very beginning, I first installed gentoo, then lubuntu 16.04.
The grub config was overwritten by lubuntu, all ran well.
I only assigned /dev/sda5 for lubuntu root, so gentoo shared swap with it.
One more info is that, I used openrc for gentoo, but lubuntu used systemd?
One day, I reinstalled gentoo, and the grub was overwritten by it.
Then, I could not boot lubuntu any more.
Of course, I emerged os-loader with grub2.
The lubuntu just complain that:
| Code: | Welcome to emergency mode! After logging in, type "journalctl -xb" to view
system logs, "systemctl reboot" to reboot, "systemctl default" or ^D to
try again to boot into default mode.
Press Enter for maintenance
(or press Control-D to continue): |
I tried using fsck but with no luck. Then what the hell goes wrong?
Any ideas? Please give me a hand! Thanks a lot.
Last edited by kenmux on Mon Dec 26, 2016 1:59 am; edited 2 times in total |
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tshade
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Joined: 01 Oct 2007
Posts: 21
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| Posted: Fri Dec 23, 2016 4:11 pm Post subject: |
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| Try editing grub.conf manually. You should add the needed lines to boot lubuntu (the problem here is: which options?). Or you can use SuperGrubDisk, maybe, but I can't promise it will work. |
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kenmux
n00b
Joined: 13 Apr 2014
Posts: 59
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| Posted: Sun Dec 25, 2016 8:21 am Post subject: |
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| tshade wrote: | | Try editing grub.conf manually. You should add the needed lines to boot lubuntu (the problem here is: which options?). Or you can use SuperGrubDisk, maybe, but I can't promise it will work. |
Any guide? The grub.cfg became hard to read in grub2 you know. |
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Jaglover
Watchman
Joined: 29 May 2005
Posts: 8291
Location: Saint Amant, Acadiana
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Roman_Gruber
Advocate
Joined: 03 Oct 2006
Posts: 3846
Location: Austro Bavaria
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| Posted: Sun Dec 25, 2016 7:19 pm Post subject: |
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easiest way is to hack the binary distro bootloader
and do not forget to make a backup of your grub.cfg
known issue that a second os overwrites the parts responsibile for booting
regardless if its spyware 10, noobuntu, nooblinuxmint or whateverit is
...
those opreating systems are made for newbies or guys with just one operating system |
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kenmux
n00b
Joined: 13 Apr 2014
Posts: 59
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| Posted: Mon Dec 26, 2016 1:58 am Post subject: |
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| Jaglover wrote: | | Why? If you already had Grub installed by Lubuntu, why didn't you use it? |
Because, I thought the grub gui from gentoo looks much better than the one from ubuntu.
One more thing is that, ubuntu always put itself on the first place, and I'd prefer gentoo.
So, I reinstalled the grub with the fresh gentoo. The grub recognized ubuntu and did menu entries for it.
But, these entries could not boot ubuntu at all!
| Roman_Gruber wrote: | | known issue that a second os overwrites the parts responsibile for booting |
Yes, from now on, I knew, ubuntu does something else, make it hard to boot from os-loader.
Very annoying, isn't it? Ubuntu, why you do the things different from others, just like Windows? |
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Roman_Gruber
Advocate
Joined: 03 Oct 2006
Posts: 3846
Location: Austro Bavaria
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| Posted: Thu Dec 29, 2016 7:13 pm Post subject: |
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| kenmux wrote: | | Jaglover wrote: | | Why? If you already had Grub installed by Lubuntu, why didn't you use it? |
Because, I thought the grub gui from gentoo looks much better than the one from ubuntu.
One more thing is that, ubuntu always put itself on the first place, and I'd prefer gentoo.
So, I reinstalled the grub with the fresh gentoo. The grub recognized ubuntu and did menu entries for it.
But, these entries could not boot ubuntu at all!
| Roman_Gruber wrote: | | known issue that a second os overwrites the parts responsibile for booting |
Yes, from now on, I knew, ubuntu does something else, make it hard to boot from os-loader.
Very annoying, isn't it? Ubuntu, why you do the things different from others, just like Windows? |
Don *t worry, windows will also destroy your "boot" section without asking.
Microsoft made it that way, that the bios self searches for windows and activates it. too bad i have not really figured out how to abuse the uefi bios doing the same for my grub bootloader
when i swap in my windows hDD. it instantly is recognized and set up.
when you swap out your grub hdd, you have to reinitalize the UEFI bootloader maping.
--
Microsoft just has the money to dictate how things have to be. and they made it for the uefi bootloader for example.
--
And Windows works, well thats up to discussions.
I want to say something what i heard recently. Something may be the best for myself, but does not mean its the best for everyone |
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Installing Gentoo
