Moving an installation to a different drive

English Install/Boot/Login
#1

Hi,

Thanks to everyone for the help to understand and sort out my dual booting. I now have a testing hard drive which works having a dual boot (legacy) chaining grub from Windows. I want to move the installation to an existing drive that has windows 10 on it.

I have copied the partitions over and now the two drives look as follows:

julian@Sputnik:~> sudo fdisk -l[sudo] password for root: 
Disk /dev/sda: 335.37 GiB, 360100795904 bytes, 703321867 sectors
Disk model: SSD 360GB       
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x5ca1162e


Device     Boot     Start       End   Sectors   Size Id Type
/dev/sda1              63     80324     80262  39.2M de Dell Utility
/dev/sda2  *        81920  30801919  30720000  14.6G  7 HPFS/NTFS/exFAT
/dev/sda3        30801920 646174565 615372646 293.4G  7 HPFS/NTFS/exFAT
/dev/sda4       646174566 703302407  57127842  27.2G  f W95 Ext'd (LBA)
/dev/sda5       646174629 691224484  45049856  21.5G 83 Linux
/dev/sda6       691236954 703302407  12065454   5.8G 82 Linux swap / Solaris




Disk /dev/sdb: 298.09 GiB, 320072932352 bytes, 625142446 sectors
Disk model: FreeAgent Go    
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xa4b57300


Device     Boot     Start       End   Sectors   Size Id Type
/dev/sdb1  *           63 568026269 568026207 270.9G  7 HPFS/NTFS/exFAT
/dev/sdb2       568027136 613076991  45049856  21.5G 83 Linux
/dev/sdb3       613076992 625142445  12065454   5.8G 82 Linux swap / Solaris
julian@Sputnik:~>

/dev/sda is the target system and /dev/sdb is the test source drive. Grub code is written to /dev/sdb2 and /dev/sda5

Apart from reinstating the chaining bootloader from Windows what else do I have to do? I know I have to edit the instation’s /etc/fstab which is currently:

julian@Sputnik:~> cat /etc/fstab 
UUID=6e358ab4-64a8-4636-b0f7-9988631ae00e  /     ext4  defaults  0  1
UUID=344e85f0-c18b-4b70-989c-2fb1069de30b  swap  swap  defaults  0  0
julian@Sputnik:~>

But not sure how I get the new UUID of the relevant partitions on /dev/sda

I have also looked at /etc/default/grub and there are no explicit references to drives either with UUID or /dev/sda1 or hd(0,1) type references so I don’t think I have to do anything for Grub to be happy.

Thanks in advance.

#2

I didn’t read all, but when you want toknow the UUIDs of your partitions (in fact your file systems):

ls -l /dev/disk/by-uuid/

If that is not what you need, sorry.

#3

Thanks, really helpful …

#4

Use that:

**3400G:~ #** lsblk -o PATH,UUID /dev/sda 
PATH      UUID 
/dev/sda   
/dev/sda2 08fb3e4e-133d-4b2d-96a0-0a1e0a3381d8 
**3400G:~ #**
#5

In case someone finds this thread in the future, it’s actually even easier than I thought. Just copy the partitions over using whatever utility you choose. As the partitions retain their UUID there is no editing to do but the bootloader is not working. I used a rescue CD and chrooted into the existing install, ran YaST and reinstated the Grub bootloader, then followed the normal setup to chainload it from Windows.