DD Linux Install from Drive to Another ( 2 Different Sizes)

jv2112 · 10-19-2010, 04:40 AM

I just ordered a 60 G SSD drive which I am going to use as my OS drive to replace the drive below.

Can I just use DD to switch ?

dd if=/dev/sda of=/dev/sdb (New Drive)

Thoughts ?

Thanks in advance for your input.

Quote:

Disk /dev/sda: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000a1a0c

Device Boot Start End Blocks Id System
/dev/sda1 * 1 89723 720693248 83 Linux
/dev/sda2 89723 91202 11878401 5 Extended
/dev/sda5 89723 91202 11878400 82 Linux swap / Solaris

kbp · 10-19-2010, 04:43 AM

Just use clonezilla, it will do a cleaner job

cheers

jv2112 · 10-20-2010, 03:50 AM

Thanks

jefro · 10-20-2010, 03:53 PM

dd is a bit by bit copy and clonezilla/redobackup are file based if they can read the target and write to the filesystem.

dd would work in most cases as long as you have a larger drive. I'd suggest you try it since dd is a tool that may help in the future. Basically G4U uses dd to transfer data. It can be used too. We use g4u all the time on OS's that don't file copy well.

CloneZilla and redobackup are also good choices. They may be faster since they are file based in most cases.