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maemo.org - Talk (https://talk.maemo.org/index.php)
-   SailfishOS (https://talk.maemo.org/forumdisplay.php?f=52)
-   -   Help needed to do a backup (https://talk.maemo.org/showthread.php?t=93849)

phantomR6 2014-09-13 15:59
Help needed to do a backup
 
Hi everyone!
Can anyone make dd backup of /dev/mmcblk0p28 of factory resetted device to help me unbrick my Jolla partition?

fk_lx 2014-09-13 16:36
Re: Help me guys!
 
That's how it goes when there is no OS image to flash device. And Jolla talks something about openness.... what a bs...

pichlo 2014-09-13 16:40
Re: Help me guys!
 
So what I'm hearing is, if I ever get a Jolla, the first thing to do is dd to make a backup.

Meanwhile, may I ask:
1. The OP to change the thread title to something meaningful;
2. The techstaff to add a filter to ban this kind of thread title.

nieldk 2014-09-13 19:46
Re: Help me guys!
 
I would like to add here, that while Jolla will (can) not distribute such an image, they (stskeeps) have now agreed to - and is - giving assistance in community efforts on creating this image, just as actively (on IRC) been seriously taking this issue up for discussion as to what possible solutions could be.

nieldk 2014-09-13 19:53
Re: Help me guys!
 
Can you enter recovery ?

https://together.jolla.com/question/...-in-boot-loop/

If so, do a factory reset from there, and update device afterwardd.
A full dd of mmcblk0p28 is ~16Gb a bit much for uploading somewhere.

for a system flashable image. It should become far smaller as a dd is not needed, but should be created from filesystem. Not including blank - not used space

coderus 2014-09-13 22:07
Re: Help me guys!
 
@nieldk i tried to help him, but recovery is not possible because a lot of errors in btrfs and volume can't be mounted. btrfs check --repair log: http://paste.ubuntu.com/8333525/

P.S. dd if=/dev/mmcblk0p28 for me is 4.1GB

nieldk 2014-09-14 05:37
Re: Help me guys!
 
Quote:
Originally Posted by coderus (Post 1439150)
@nieldk i tried to help him, but recovery is not possible because a lot of errors in btrfs and volume can't be mounted. btrfs check --repair log: http://paste.ubuntu.com/8333525/

P.S. dd if=/dev/mmcblk0p28 for me is 4.1GB
That doesnt make sense ?

that partition is 14.8 GB big
http://talk.maemo.org/showpost.php?p...&postcount=243

coderus 2014-09-14 06:01
Re: Help needed to do a backup
 
but dd dump /dev/mmcblk0p28 still 4.3 GB, not 14.8, even after seeing this parted information it didnt changed :P

nieldk 2014-09-14 06:24
Re: Help needed to do a backup
 
Quote:
Originally Posted by coderus (Post 1439160)
but dd dump /dev/mmcblk0p28 still 4.3 GB, not 14.8, even after seeing this parted information it didnt changed :P
just a wild guess, that is on N9 device ? and not Jolla device.
Unless You did some magic, the partition on Jolla is 14.8 Gb and doing a 1/1 dump will make a dd copy that size.
Will see if tar/gz can compress, but that will make a few further steps required for putting it on device ;)

peterleinchen 2014-09-14 07:26
Re: Help needed to do a backup
 
Quote:
Originally Posted by nieldk (Post 1439161)
...
Unless You did some magic, the partition on Jolla is 14.8 Gb and doing a 1/1 dump will make a dd copy that size.
...
Right. Unless you put that file onto a storage with compression, like NTFS4 introduced (as I assume lots of zeros on p28).


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