AT300-101 - how to make a back up of the operating system?
Hi
I am tearing my hair out ! i am sending my AT300-101 toshiba tablet away tomorrow to have the battery changed but have only just realised the email booking the repair has said i have to make a back up of the operating system / replacement recovery media. after trawling the web trying to work out how to do it I am still stuck. can anyone help me with this please. It would be a big help.
Thanks.
Kate
Hi
There are many different ways to backup the date from android device.
You can use some 3rd party backup apps (check the Google Play store for available apps) or you can use the Android internal option to backup the data, application, Wifi passwords and other settings to google servers.
Such option can be found in App Apps -> Settings -> Backup & Restore
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How to make a bootable backup of the operating system
Hi,
I am given the task to make a bootable backup of the OS (Solaris 9). I know I can use ufsdump to backup the system in single user mode. However, to make a backup bootable, shall I backup the file system to a DVD? Any advice will be greatly appreciated!
Cinderellai call it cloning the disk . you can install boot block as mentioned in second solution of cloning disk
e.g
# /usr/sbin/installboot /usr/platform/`uname -i`/lib/fs/ufs/bootblk /dev/rdsk/c1t2d1s0
################## solution 1 ####################################
dd if=/dev/rdsk/c0t1d0s2 of=/dev/rdsk/c0t4d0s2 bs=2048
############### solution 2 #####################3333
Now this is through but if the disk are from the same vendor (I tested also
dd on disks with different vendors and it function well) and if it the disk
are the same size my opinion is to use the dd command because it is easier
to be done. Anyway if the disk are not from the same size or vendor it could
be done also with ufsdump and ufsrestore. Here how it works and what I did
if your would like to clone a disk with ufsdump and ufsrestore:
For testing we have two disks:
c1t2d0 (Source Disk)
c1t2d1 (Destination Disk)
The source disk has the following layout (slice 4 and 5 are for Disksuite
metadb's but are not initialized or configured):
0 root wm 0 - 634 471.29MB (635/0/0)
965200
1 var wm 635 - 2014 1.00GB (1380/0/0)
2097600
2 backup wm 0 - 2732 1.98GB (2733/0/0)
4154160
3 swap wu 2015 - 2704 512.11MB (690/0/0)
1048800
4 unassigned wm 2705 - 2718 10.39MB (14/0/0)
21280
5 unassigned wm 2719 - 2732 10.39MB (14/0/0)
21280
6 unassigned wm 0 0 (0/0/0)
0
7 unassigned wm 0 0 (0/0/0)
0
On our testsystem the disk are the same size. Firstable the layout/label
from the source disk must be copied to the destination disk because with
ufsdump and ufsrestore this information will not be transfered to the
destination disk because this commands are based on filesystem. This is also
a difference between dd and ufsdump because dd copies also the information
from labels and layouts because this command is based on blocks and not on
filesystem. Here it is how it wors to copy the information from
layout/label:
# prtvtoc /dev/rdsk/c1t2d0s0 > /tmp/z
# fmthard -s /tmp/z /dev/rdsk/c1t2d1s0
fmthard: New volume table of contents now in place.
The slice 0 from the destination disk has now the same layout like the
source disk. This could be controlled with the command:
# format
To transfer the information from slice 0 source disk to the slice 0
destination disk the destination disk must be prepared to work on it. It
means at the moment there is no filesystem on this disk. To do this use the
command newfs. No option are neccessary because for default the filesystem
would be ufs. Only the raw device/slice must given to the command that newfs
knows what exactly must be don:
# newfs /dev/rdsk/c1t2d1s0
newfs: /dev/rdsk/c1t2d1s0 last mounted as /
newfs: construct a new file system /dev/rdsk/c1t2d1s0: (y/n)? Y
Now we have a filesystem on slice 0 and we could mount the slice 0. This
would be made with the command mount and option -F for filesystem = ufs and
-o for read or write = rw and at least which slice = 0. At the end of the
command is the device with the slice which must be mounted:
# mount -F ufs -o rw /dev/dsk/c1t2d1s0 /mnt
Now the device is mounted. With the following command ufsdump 0f = slice 0
and / = partition the filesystem / would be dumped. The whole dump would be
piped (I hope this is the correct english word) to the command ufsrestore
which would be executed in the mounted directory ufsresore and extracts the
dump.
# ufsdump 0f - / | ( cd /mnt ;ufsrestore xvf - )
Add links
Set directory mode, owner, and times.
set owner/mode for '.'? [yn] y
Directories already exist, set modes anyway? [yn] y
DUMP: 405886 blocks (198.19MB) on 1 volume at 406 KB/sec
DUMP: DUMP IS DONE
After given the command, the partition / from source disk and / from the
destination disk looks based on files absolutly the same but there is a
information which MUST be changed and it is the information in "/etc/vfstab"
because on the destination disk in this file are the information from the
source disk (it means source disk will be mounted on the device c1t2d0 and
the destination diks on the device c1t2d1). This information must be changed
in "/etc/vfstab" on the destination disk:
# vi /mnt/etc/vfstab
---------- /mnt/etc/vfstab ----------
#device device mount FS fsck
mount mount
#to mount to fsck point type pass at
boot options
#/dev/dsk/c1d0s2 /dev/rdsk/c1d0s2 /usr ufs 1 yes
fd - /dev/fd fd - no -
/proc - /proc proc - no -
/dev/dsk/c1t2d1s3 - - swap - no -
/dev/dsk/c1t2d1s0 /dev/rdsk/c1t2d1s0 / ufs 1
no
/dev/dsk/c1t2d1s1 /dev/rdsk/c1t2d1s1 /var ufs 1
no
swap - /tmp tmpfs - yes -
---------- /mnt/etc/vfstab ----------
Now we changed the information and the work is done on slice 0. We can now
umount the slice 0:
# umount /mnt
Proceed with the other slice similar like explained before. In our example
it would be:
# newfs /dev/rdsk/c1t2d1s1
newfs: /dev/rdsk/c1t2d1s1 last mounted as /var
newfs: construct a new file system /dev/rdsk/c1t2d1s1: (y/n)? y
# mount -F ufs -o rw /dev/dsk/c1t2d1s1 /mnt
# ufsdump 1f - /var | ( cd /mnt ;ufsrestore xvf - )
Set directory mode, owner, and times.
set owner/mode for '.'? [yn] y
Directories already exist, set modes anyway? [yn] y
# umount /mnt
Slice 4 and 5 are in our example not importante because this slice as
explained are for Disksuite metadb's and on the source disk there are at the
moment no information and no filesystem because Disksuite was not
initialized or configured.
It is a good idea to check the slices which where transfered files before.
This could be done with the command fsck:
# fsck /dev/rdsk/c1t0d1s0
# fsck /dev/rdsk/c1t0d1s1
# fsck /dev/rdsk/c1t0d1s2
# fsck /dev/rdsk/c1t0d1s4
# fsck /dev/rdsk/c1t0d1s5
Now it seems that all what done but something is missing!? The destination
disk looks now like the source disk with one exception; there is NO
boot-block on the destination disk. If you don't create a boot-block the
destination disk would never be bootable. To do this the system where it
must be done must be from the same architecture like the source disk it
means if the source disk is based on sun4m and you give now the command from
a architecture like sun4u to the destination disk the boot-block would not
work. This is what by me happens by the test (source disk based system on
sun4m > to install boot-block I tried to give the command from sun4u based
system and after I tried to boot the destination disk > result = destination
disk was not able to boot). Ok we set now the command for boot-block to the
destination disk to create there a boot-block:
# /usr/sbin/installboot /usr/platform/`uname -i`/lib/fs/ufs/bootblk
/dev/rdsk/c1t2d1s0
Now you could boot the destination disk with the correct alias or the
correct device alias. If you don't know what the alias is give on the system
the following command:
# ls -la /dev/dsk/c1t2d1s0
/dev/dsk/c1t2d1s0 ->
../../devices/iommu at 0,10000000/sbus at 0,10001000/SUNW,soc@
1,0/SUNW,pln at a0000000,753a58/ssd at 2,1:a
End the OS with init 6 and stop the system reboot if the banner of OBP
appears with stop + A. After that you are on the ok prompt. To set an alias
give following command:
# nvalias clone1 /iommu at 0,10000000/sbus@
0,10001000/SUNW,soc@,0/SUNW,pln at a0000000,753a58/ssd at 2,1:a
Use the alias with:
ok boot clone1
Have fun with you new clone...! I hope I did not forgett something but I
tested it several times and it worked every time absolutly nice with no
errors. -
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If you look at the User Tips tab, you will find a write up on just this subject:
https://discussions.apple.com/docs/DOC-4053
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SELLING A MAC A
Internet Recovery, and Transferability of OS & iLife Apps
Selling an Old Mac:
• When selling an old Mac, the only OS that is legally transferable is the one that came preinstalled when the Mac was new. Selling a Mac with an upgraded OS isn't doing the new owner any favors. Attempting to do so will only result in headaches since the upgraded OS can't be registered by the new owner. If a clean install becomes necessary, they won't be able to do so and will be forced to install the original OS via Internet Recovery. Best to simply erase the drive and revert back to the original OS prior to selling any Mac.
• Additionally, upgrading the OS on a Mac you intend to sell means that you are leaving personally identifiable information on the Mac since the only way to upgrade the OS involves using your own AppleID to download the upgrade from the App Store. So there will be traces of your info and user account left behind. Again, best to erase the drive and revert to the original OS via Internet Recovery.
Internet Recovery:
• In the event that the OS has been upgraded to a newer version (i.e. Lion to Mountain Lion), Internet Recovery will offer the version of the OS that originally came with the Mac. So while booting to the Recovery Disk will show Mountain Lion as available for reinstall since that is the current version running, Internet Recovery, on the other hand, will only show Lion available since that was the OS shipped with that particular Mac.
• Though the Mac came with a particular version of Mac OS X, it appears that, when Internet Recovery is invoked, the most recent update of that version may be applied. (i.e. if the Mac originally came with 10.7.3, Internet Recovery may install a more recent update like 10.7.5)
iLife Apps:
• When the App Store is launched for the first time it will report that the iLife apps are available for the user to Accept under the Purchases section. The user will be required to enter their AppleID during the Acceptance process. From that point on the iLife apps will be tied to the AppleID used to Accept them. The user will be allowed to download the apps to other Macs they own if they wish using the same AppleID used to Accept them.
• Once Accepted on the new Mac, the iLife apps can not be transferred to any future owner when the Mac is sold. Attempting to use an AppleID after the apps have already been accepted using a different AppleID will result in the App Store reporting "These apps were already assigned to another Apple ID".
• It appears, however, that the iLife Apps do not automatically go to the first owner of the Mac. It's quite possible that the original owner, either by choice or neglect, never Accepted the iLife apps in the App Store. As a result, a future owner of the Mac may be able to successfully Accept the apps and retain them for themselves using their own AppleID. Bottom Line: Whoever Accepts the iLife apps first gets to keep them.
SELLING A MAC B
Follow these instructions step by step to prepare a Mac for sale:
Step One - Back up your data:
A. If you have any Virtual PCs shut them down. They cannot be in their "fast saved" state. They must be shut down from inside Windows.
B. Clone to an external drive using using Carbon Copy Cloner.
1. Open Carbon Copy Cloner.
2. Select the Source volume from the Select a source drop down menu on the left side.
3. Select the Destination volume from the Select a destination drop down menu on the right
side.
4. Click on the Clone button. If you are prompted about creating a clone of the Recovery HD be
sure to opt for that.
Destination means a freshly erased external backup drive. Source means the internal
startup drive.
Step Two - Prepare the machine for the new buyer:
1. De-authorize the computer in iTunes! De-authorize both iTunes and Audible accounts.
2, Remove any Open Firmware passwords or Firmware passwords.
3. Turn the brightness full up and volume nearly so.
4. Turn off File Vault, if enabled.
5. Disable iCloud, if enabled: See.What to do with iCloud before selling your computer
Step Three - Install a fresh OS:
A. Snow Leopard and earlier versions of OS X
1. Insert the original OS X install CD/DVD that came with your computer.
2. Restart the computer while holding down the C key to boot from the CD/DVD.
3. Select Disk Utility from the Utilities menu; repartition and reformat the internal hard drive.
Optionally, click on the Security button and set the Zero Data option to one-pass.
4. Install OS X.
5. Upon completion DO NOT restart the computer.
6. Shutdown the computer.
B. Lion and Mountain Lion (if pre-installed on the computer at purchase*)
Note: You will need an active Internet connection. I suggest using Ethernet if possible because
it is three times faster than wireless.
1. Restart the computer while holding down the COMMAND and R keys until the Mac OS X
Utilities window appears.
2. Select Disk Utility from the Mac OS X Utilities window and click on the Continue button.
3. After DU loads select your startup volume (usually Macintosh HD) from the left side list. Click
on the Erase tab in the DU main window.
4. Set the format type to Mac OS Extended (Journaled.) Optionally, click on the Security button
and set the Zero Data option to one-pass.
5. Click on the Erase button and wait until the process has completed.
6. Quit DU and return to the Mac OS X Utilities window.
7. Select Reinstall Lion/Mountain Lion and click on the Install button.
8. Upon completion shutdown the computer.
*If your computer came with Lion or Mountain Lion pre-installed then you are entitled to transfer your license once. If you purchased Lion or Mountain Lion from the App Store then you cannot transfer your license to another party. In the case of the latter you should install the original version of OS X that came with your computer. You need to repartition the hard drive as well as reformat it; this will assure that the Recovery HD partition is removed. See Step Three above. You may verify these requirements by reviewing your OS X Software License. -
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