Arch Linux

GosuSan

Member

Registered: 2014-08-19

Posts: 32

Moving ArchLinux Installation from one partition to another

Hey everyone,

I am a bit stuck here.
My Laptop ran a dual-boot system (Win7 + Arch Linux).

The partition table looked something like this:

/dev/sda1 - 100MB - NTFS - win7 system reserved
/dev/sda2 - 263GB - NTFS - win7 c-drive
/dev/sda3 -   32GB - ext4   - arch linux /
/dev/sda4 -     3GB - swap (wich will be eliminated too - but thats another story)

I realized I never use Windows so I decided to remove it and copy the linux partition to the bigger partition /dev/sda2

Now the partition table looks like this:

/dev/sda1 - 100MB - ext4 - /boot (copied from /dev/sda3 - previous grub installation)
/dev/sda2 - 263GB - ext4 - arch linux / (copied from /dev/sda3 - previous grub installation)
/dev/sda3 -   32GB - ext4 - arch linux /
/dev/sda4 -     3GB - swap (wich wills still be eliminated)

/etc/fstab looks like this:

/dev/sda2           	/         	ext4      	rw,relatime,data=ordered	0 1
/dev/sda1           	/boot      	ext4      	rw,relatime,data=ordered	0 1

And it boots fine - but it still mounts /dev/sda3 instead of /dev/sda2

lsblk:

NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 298,1G  0 disk 
├─sda1   8:1    0   100M  0 part /boot
├─sda2   8:2    0   263G  0 part 
├─sda3   8:3    0    32G  0 part /
└─sda4   8:4    0     3G  0 part 

So, what should I do to get this dam Laptop to boot from /dev/sda2 instead of /dev/sda3 ?

Thanks in Advance, and if any additional Information is needed, let me know!

PS: I tried UUID in /etc/fstab - that does not change anything.

2ManyDogs

Forum Fellow

Registered: 2012-01-15

Posts: 4,646

Re: Moving ArchLinux Installation from one partition to another

Did you regenerate your grub configuration after you copied the partitions?

GosuSan

Member

Registered: 2014-08-19

Posts: 32

Re: Moving ArchLinux Installation from one partition to another

I just ran another

sudo grub-mkconfig -o /boot/grub/grub.cfg

(just to be sure)
The above command even statet something like: "arch found on /dev/sda2"
Still mounted /dev/sda3 after reboot.

EDIT: I was confused since /boot/grub/grub.cfg (on /dev/sda1) does not have a entry for Windows 7 anymore, but I still get it as an option when I boot.
So I unmounted it and checked in /boot/grub/grub.cfg (on /dev/sda3 - where it was installed before) and it still has the Windows 7 entry.
So, what now, delete the /boot folder from /dev/sda3 ?
Or how do I get rid of this installation of grub and my system to use the one installed in /dev/sda1 ?

Last edited by GosuSan (2016-06-27 18:17:52)

2ManyDogs

Forum Fellow

Registered: 2012-01-15

Posts: 4,646

Re: Moving ArchLinux Installation from one partition to another

Take a look at /boot/grub/grub.cfg. Make sure there is an entry in there with sda2 as root. If there is not, you can edit that file.

(edit) cross-posted.

Last edited by 2ManyDogs (2016-06-27 18:22:20)