Help needed to do a backup - maemo.org

phantomR6 | # 1 | 2014-09-13, 15:59 | Report

Hi everyone!
Can anyone make dd backup of /dev/mmcblk0p28 of factory resetted device to help me unbrick my Jolla partition?

Last edited by jalyst; 2014-09-14 at 02:09.

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fk_lx | # 2 | 2014-09-13, 16:36 | Report

That's how it goes when there is no OS image to flash device. And Jolla talks something about openness.... what a bs...

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pichlo | # 3 | 2014-09-13, 16:40 | Report

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.

Last edited by pichlo; 2014-09-14 at 13:41. Reason: Thread title has changed, #1 no longer relevant

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nieldk | # 4 | 2014-09-13, 19:46 | Report

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.

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nieldk | # 5 | 2014-09-13, 19:53 | Report

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

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coderus | # 6 | 2014-09-13, 22:07 | Report

@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

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nieldk | # 7 | 2014-09-14, 05:37 | Report

Originally Posted by coderus View Post

@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

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coderus | # 8 | 2014-09-14, 06:01 | Report

but dd dump /dev/mmcblk0p28 still 4.3 GB, not 14.8, even after seeing this parted information it didnt changed :P

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nieldk | # 9 | 2014-09-14, 06:24 | Report

Originally Posted by coderus View Post

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

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peterleinchen | # 10 | 2014-09-14, 07:26 | Report

Originally Posted by nieldk View Post

...
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).