# Posts Tagged recovery

So, curious on the iPhone OS 4.0 I wanted to testrun it on my iPhone 3GS, downloaded the upgrade from Apple, “option clicked” restore and browsed to the “iPhone2,1_4.0_8A230m_Restore.ipsw” file and off we go…

Well I don’t know about this beta, it wasn’t very stable for sure, the worst problem being not able to read mail properly. Also all my contacts disappeared when I upgraded, not very impressive (my songs where still there though curiously enough). Weren’t too impressed with the multitasking, I ended up seeing “warning low memory” a couple of times and having to go in to the “task manager” and kill some apps, hopefully this is some we won’t see in the production version because then Apple is seriously going in the wrong direction!

Another thing that bothered me a bit, I have very frequently used the “home button double click” mapped to the iPod and that will likely disappear now with the “task manager” mapped to “home button double click”. Too bad, fortunately it seems to still work when the screen is locked…

Nevertheless, soon got tired of the bugginess and wanted to downgrade back down to 3.1.3… not soo easy it turns out…

First tried the normal “Restore procedure”, no luck, just got something along the lines of “Cannot download software” (no error code) and then it just referred me to this Apple page.

So then I tried the “option click” restore and choose the “iPhone2,1_3.1.3_7E18_Restore.ipsw” file, iTunes went off and fiddled around with the iPhone for a while, but ended up with .

I fiddled around with various variants of this for a while trying both the 3.1.3 version and the 4.0 version but no luck.

What’s worse I had obviously ended up in what is called the “Apple Logo or Recovery Mode loop”, i.e it is now impossible to boot the phone it just keeps coming back to recovery mode and when plugged into iTunes, it will just ask you to restore and we have already concluded that didn’t work for me, so what now??

Found this and this page and combining the two did the magic. Like it says on the first page, it can take several tries before it works, for me it took two times before I finally managed to get it back to 3.1.3.

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So, the inevitable finally happened to our old Windows HP Laptop, it crashed… We have been waiting for it to happen, it is, after all OLD, but I must say it has done a really good job hanging in there this long.

Yep, we have been making backups, but not as regularly as with the Mac and the excellent Time Machine of the simple reason that it is more of a hassle doing it under windows.

So, although most files where backuped there where still some missing. So what to do? The machine didn’t even boot so no way of getting in and copy files to a USB stick. Considered trying a repair with the Windows XP CD, but I don’t really trust them not to do stupid things so discounted that option.

Having done this stuff before I remember beeing really happy with the System Rescue CD (SRCD), I consider it to be, by far, the best in the category! This is one excellent package! Its a Linux Live CD with all the stuff you’ll ever need, including a really good website. So downloaded that and burnt it to a CD and stuffed it into the old HP.

Linux booted with no problem, next step is to find the hard drive:
fsarchiver probe simple
showed it to be: /dev/hda1 with an NTFS filesystem, this used to be an issue, but not anymore. So mounted the hard drive with: ntfs-3g -o ro /dev/hda1 /mnt/windows The /mnt/windows exists from the start so no need to create that directory, the “-o ro” option mounts it read only so we can’t misstakenly remove or change anything on the drive, that feels good in these situations.

Ok, so the machine is up and running and we have access to all the files on it, good. My plan now was to backup the files and then try to reinstall Windows. So how to backup the files? Initially I figured I’d copy them over the network using sftp which was the suggested approach on the System Rescue CD website. So I got the network up and running by connecting a network cable and issuing dhclient eth0. No problem. ifconfig showed that the network was up and running and the ip-address I got. OpenSSH is already up and running on the crashed machine so I started cyberduck on my Mac and used sftp to connect to the crashed machine.

I then started copying the files I wanted, but unfortunately it would take about 13 hours. I didn’t really file like waiting that long, so in parallel I started looking for a USB drive. I found an old one with 220 GB free and connected that to the crashed machine. USB is of course supported by SRCD, so again, I ran fsarchiver probe simple to find the USB drive, it showed up as /dev/sda1 with a vfat filesystem on it.

So mounted that one with mount -t vfat /dev/sda1 /mnt/backup again the /mnt/backup already existed so no need to create that either.

Now I got a small issue, since normal users don’t really know (and shouldn’t need to know either) alot about filesystems they are blissfully unaware of the issues that can occur when you create files with the swedish characters “å”, “ä”, “ö” and the like in the filenames so they tend to do just that. Now when I tried to copy files and directories with the above mentioned swedish characters (“åäö”) in them I got some error along the lines of “Could not create file, Illegal argument ” and I suspected that the “åäö”‘s were the issue. It turns out that I needed to unmount the “/mnt/backup” and mount it with mount -t vfat -o iocharset=utf8 /dev/sda1 /mnt/backup instead, then it worked fine, I’m not sure why this was since it says that “iso8859-1″ is the default which certainly is capable of representing “åäö”, but maybe it was due to how the USB drive had beed formatted or something.

Ok, so now we are capable of handling “åäö”, so it is time to start copying the files. Next question, what to use to copy the files…? This might sound like a silly question but anyone that has tried to copy large amount of files with windows explorer knows what kinds of problems you can have. For example a file somewhere in the middle of the copy process is broken or some other error occurs and the file copying stops dead in its track somewhere in the middle of everything and you have no idea what is copied or not and you basically have to try to find the offending file, remove it and start over, and again… and again…

Now, there are a couple of options on Linux:

cp – The ordinary copy program
dd –
tar-
dar-
rsync- A very competent file sync program from the Samba team

I ended up using rsync mainly since “cp” doesn’t show any progress, tar, dar creates an archive which I didn’t really want, other than that I have very high confidence that rsync will “do the right thing”.

To use rsync to just do a simple copy and show progress I use the following command: rsync -avh --progress /mnt/windows/Documents\ and\ Settings/Tess ./ (I had already cd’d to /mnt/backup/). As you can see I copied the “Documents and Settings/” folder, but I don’t really know if it contains everything that is needed, I hope that most applications save their data in the “Application Data” folder under that directory. Of specific interest was Firefox Bookmarks and Thunderbird emails and adressbook.

When all files where copied with rsync (40 GB) the sftp had managed to copy around 17% (6GB). Ok, so what’s next?

If I need to reinstall Windows, “My Documents” might be whiped, don’t want that, so while still running SRCD I moved everything in the “Documents and Settings/<username>/Mina Document/” folder to “c:/bak”, which is /mnt/windows/bak on the SRCD (the “bak” folder was not there so I created that first with mkdir /mnt/windows/bak.

Ok, after having secured the files I feel more confident starting to experiment with the machine. I then booted from a Windows XP Professional CD and chose the “Repair using the Recovery Console”. Then I tested the boot configuration with the command bootcfg /list it turns out that it is broken. “Dir” did not work either probably because the “Recovery Console” didn’t manage to find any “Windows Installation” to “log in” to. None of the “/rebuild”, “/scan”, “/add” options worked, so at this stage I wanted to delete the boot.ini file. I first had to make it deletable at all using the commands:
 attrib -H C:\boot.ini attrib -R C:\boot.ini attrib -S C:\boot.ini 

Now was able to delete the boot.ini, my first and so far only mistake, I should of course just have moved it to some other filename.

At this point I tried to boot the system in safe mode. And this time it actually managed to boot it using “Safe mode”, the first time since the crash. After rebooting it can now boot normally even though it prints a message that it cant find a boot and informs that it uses “c:\..something..windows..something”, pretty remarkable…

The final step was using the Windows XP (pro) CD to create a new boot.ini file. After this and a reboot it was again back to normal… let’s see how long it will make it!