Arch Linux

Lovok

Member

Registered: 2010-01-13

Posts: 2

[solved] Installing on extended partitions

I like partitioning my hard drives, but I am not sure if what I have done is too much. Here is the output of fdisk -l through Ubuntu.

Disque /dev/sda: 60.0 Go, 60011642880 octets
255 têtes, 63 secteurs/piste, 7296 cylindres
Unités = cylindres de 16065 * 512 = 8225280 octets
Identifiant de disque : 0x379c7acb

Périphérique Amorce  Début        Fin      Blocs     Id  Système
/dev/sda1               1        2019    16217586    5  Etendue
/dev/sda2            2020        3235     9767520   83  Linux
/dev/sda3            7054        7296     1951897+  82  Linux swap / Solaris
/dev/sda4            3236        7053    30668085   83  Linux
/dev/sda5   *           1          12       96327   83  Linux
/dev/sda6              13         134      979933+  82  Linux swap / Solaris
/dev/sda7             135        1046     7325608+  83  Linux
/dev/sda8            1047        2019     7815591   83  Linux

Les entrées de la table de partitions ne sont pas dans l'ordre du disque

sda1 is extended, and it contains sda5 through 8
sda2 : Ubuntu /
sda3 : swap
sda4 : Ubuntu /home
sda5 : Arch /boot
sda6 : swap
sda7 : Arch /
sda8 : Arch /home

Is having an entire operating system in extended partitions a bad thing ?
I ask, because I haven't been able to boot Archlinux. I would get Error 15 if I went off sda5's grub, and a kernel panic with sda2's grub.

Thanks.

Last edited by Lovok (2010-01-14 12:04:25)

Wintervenom

Member

Registered: 2008-08-20

Posts: 1,011

Re: [solved] Installing on extended partitions

There is, as far as I know, nothing bad about having your operating systems on extended partitions.  Just as long as GRUB is installed to the MBR.

IgnorantGuru

Member

Registered: 2009-11-09

Posts: 640

Website

Re: [solved] Installing on extended partitions

Everything for linux and swap works fine on extended partitions (but not Windows, which you should always install on a primary).

I suggest reinstalling grub to the MBR, being sure you know which /boot/grub folder on which partition you want it to use.  Note that Ubuntu uses grub v2 and Arch uses grub v1 (by default).

IgnorantGuru

Member

Registered: 2009-11-09

Posts: 640

Website

Re: [solved] Installing on extended partitions

Also, Ubuntu and Arch can share a single swap partition - no real need to have two unless you plan to hibernate one while the other is running.

Lovok

Member

Registered: 2010-01-13

Posts: 2

Re: [solved] Installing on extended partitions

Thanks for the replies, I'll look into the MBR and all that.

IgnorantGuru

Member

Registered: 2009-11-09

Posts: 640

Website

Re: [solved] Installing on extended partitions

Thanks for the replies, I'll look into the MBR and all that.

I think this method will fix it, but you need to determine which /boot/grub folder you want to be used (Ubuntu or Arch)...
http://en.wikibooks.org/wiki/How_To_Bac … _Partition