On Thu, 2010-06-24 at 02:06 -0600, Linuxguy123 wrote:
I'm moving /, /boot and swap from a conventional hard drive to an
SSD.
Both drives are 160 GB in size.
I want to resize the /boot and swap partitions from 200 MB and 2 GB to
500 MB and 8 GB respectively. The first resize is because preupgrade
now fails to run unless /boot is 500 MB or larger and the second because
the swap file is supposed to be as big as the RAM in the computer and my
laptop currently has 4GB and I want to upgrade to 8 GB in the future.
So... I partitioned the SSD to the appropriate sizes. I then ran
Clonezilla and installed the /boot data seemingly without any problem.
I used the expert mode and told it to resize things to fit the new /boot
partition size.
Unfortunately, Clonezilla won't let me do the same for / because / on
the SSD is 6 GB or so smaller than it was on the hard drive
because /boot and swap are larger.
So how do I move ALL the data from / on the hard drive to / on the sdd ?
dd won't work because its for device files, not for partitions. If I
use dd between the devices, it won't resize anything.
Or should I do an outright dd and then use gparted to resize everything
afterward ?
Can one make cp copy EVERYTHING on one drive to another and keep the
timestamps, etc, all correct ?
I think I did this once a few years ago using tar, but I can't remember
how and I think it took up a lot of disk space and took forever to run.
I have tried a couple of methods successfully, here are my "hints"
files
I liked the fsarchiver method as I could save an "image file" containing a
complete
replica of "/", it was only 8.5GB when compressed in my case
35mins to save the file, 20 mins to restore
Maybe of some help
John
1. From this list using cpio
2. Using fsarchiver
1. cpio
From: gary artim <gartim(a)gmail.com>
Reply-to: Community support for Fedora users <users(a)lists.fedoraproject.org>
To: Community support for Fedora users <users(a)lists.fedoraproject.org>
Subject: Re: change HDD without Re-installing Fedora 12 ..!!!!
Date: 02/25/2010 05:04:17 PM
Just uses create a mirror of a system I'm running. May help?! -- gary
## Add the new disk to the system
this example assumes a /dev/sda and (new) /dev/sdb
sda has 3 partitions, 1 swap, /boot, /. / and /boot are ext3 fstype.
## create new partition on new disk
parted (you need to set the partition type as gpt)
mkpart
## (model after target disk only larger, note: change the names (labels)
## create 3 partition /, /boot, swap)
## make filesystem and copy
mkfs.ext3 /dev/sdb3
mount /dev/sdb3 /mnt
cd /
find . -xdev | cpio -pdumv /mnt
umount /mnt
mkfs.ext3 /dev/sdb1
mount /dev/sdb1 /mnt
cd /boot
find . -xdev | cpio -pdumv /mnt
umount /mnt
## mbr copy
dd if=/dev/sda of=/dev/sdb bs=446 count=1
## fix grub
## boot fc11 recovery dvd
## (need newer grub for gpt partition tables)
## assumes your first partition has grub installed on it
grub
root (hd0,0)
setup (hd0)
exit
###############################################################################
2. fsarchiver
fuerte hints_info 7# cat fsarchiver_partition_cloning_recipe
11_03_2010
Copied from ~/hints_info/backup_restore_summary
Boot from ssd1 or maybe rescueCD
Check selinux status
See
http://www.fsarchiver.org/QuickStart - Execution environment
and
http://www.fsarchiver.org/Attributes
Neither source nor destination are mounted
fsarchiver -o -j3 -z 6 savefs /tmp/fsarchive_sda7.fsa /dev/sda7
fsarchiver restfs /tmp/fsarchive_sda7.fsa id=0,dest=/dev/sda2,mkfs=ext3
fsarchiver copies the UUID be careful !!!!
tune2fs -U random /dev/sda2 as required
mount /dev/sda2 /mnt/zip
nedit /mnt/zip/etc/fstab Change UUID
nedit /mnt/zip/boot/grub/grub.conf Change root (hdx,y) and UUID
grub Check which disk is which by root (hd1,7) say to access a unique
partition!
root (hd0,1)
setup (hd0,1)
Rebooted - the restored partition appears clean with SElinux enabled !!
-----------------------------------------------------------------------------------
fsarchiver - "is still in development, don't use it for critical data yet"
Installed fsarchiver on F12 fuerte and tried backup of 48GB part
Speed about 0.8 GB/min
fsarchiver -o -j3 -z 6 savefs /media/max80/fsarchive_sda7.fsa /dev/sda7
Can be used on a directory but is it better than tar?
fsarchiver -o -j3 -z 6 savedir /media/max80/fsarchive_ja.fsa /home/ja
------------
Installed fsarchiver on ssd1 and then with selinux enabled in permissive mode, sda7
unmounted
NB In future ideally selinux should be DISABLED
See
http://www.fsarchiver.org/QuickStart - Execution environment
and
http://www.fsarchiver.org/Attributes
These two URLs are very important reading - I don't understand them yet !
It is recommended to restore filesystems using fsarchiver from an environment where
SELinux is disabled or not supported.
fsarchiver -o -j3 -z 6 savefs /tmp/fsarchive_sda7.fsa /dev/sda7
Timed at 34mins, du -hs 21GB -> 8.5GB
fsarchiver restfs /tmp/fsarchive_sda7.fsa id=0,dest=/dev/sda2,mkfs=ext3
Restore took about 20mins! No errors given
BTW: if I verify the partition table for the SSD, it tells me
Remaining 5165 unallocated 512-byte sectors
Yet:
Disk /dev/sdb: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 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: 0x0001ab7d
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 66 530113+ 83 Linux
/dev/sdb2 67 1111 8393962+ 82 Linux swap /
Solaris
/dev/sdb3 1112 19457 147364245 83 Linux
Am I missing something ?
Thanks !
No comment on above question - but do you not still have to align the
partitions to obtain the best performance on an SSD?