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2013-10-18
, 19:06
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Joined on Aug 2012
@ Paris, FR
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#2
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Alright, at least for MyDocs, I brought it back by plugging it as a Mass storage and unplugging it + rebooting. But for /home, it is still missing. Investigating.
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2013-10-18
, 19:17
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Posts: 344 |
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Joined on Aug 2012
@ Paris, FR
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#3
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Right: looks like /home is corrupted. Now do anyone know how to run a fsck on /home ...
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2013-10-18
, 20:35
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Posts: 4,117 |
Thanked: 8,901 times |
Joined on Aug 2010
@ Ruhrgebiet, Germany
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#5
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You cannot fsck a mounted fs. And you cannot umount /home.
So probably do (from heart, so please cross check):
dd if=/dev/mmcblk0p3 of=/home/user/MyDocs/p3.img
fsck /home/user/MyDocs/p3.img
If some error pop up, you may correct them on the img file. But to correct them on device you would need to bring it back to /dev/mmcblk0p3. I am unsure if
dd of=/dev/mmcblk0p3 if=/home/user/MyDocs/p3.img
would work..
Maybe better try that with a Linux system and all partitions mounted to that PC (e.g. via ubiboot. Or are there other rescue systems?).
So probably do (from heart, so please cross check):
dd if=/dev/mmcblk0p3 of=/home/user/MyDocs/p3.img
fsck /home/user/MyDocs/p3.img
If some error pop up, you may correct them on the img file. But to correct them on device you would need to bring it back to /dev/mmcblk0p3. I am unsure if
dd of=/dev/mmcblk0p3 if=/home/user/MyDocs/p3.img
would work..
Maybe better try that with a Linux system and all partitions mounted to that PC (e.g. via ubiboot. Or are there other rescue systems?).
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Thank you all for voting me into the Community Council 2014-2016!
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2013-10-18
, 21:27
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Community Council |
Posts: 4,920 |
Thanked: 12,867 times |
Joined on May 2012
@ Southerrn Finland
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#6
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Did you check that your home is actually mounted?
Happened to me once that, well it was my own fault really as I messed up some boot related things, and /dev/mmcblk0p3 (/home) was not mounted.
What happens then, when the device boots it will create a new /home for you on your root device, and copy the skeleton files to it from /etc.
It will look like your device had been wiped clean, but the old stuff stil exists there on /dev/mmcblk0p3
As for rescuing the device, there are at least 3 differnt rescue kernels but ubiboot is the easiest to use and most versatile.
Just load up ubiboot kernel without flashing it, and telnet to the device & run fsck on filesystems.
(or fsck them on USB mount if you have linux)
Happened to me once that, well it was my own fault really as I messed up some boot related things, and /dev/mmcblk0p3 (/home) was not mounted.
What happens then, when the device boots it will create a new /home for you on your root device, and copy the skeleton files to it from /etc.
It will look like your device had been wiped clean, but the old stuff stil exists there on /dev/mmcblk0p3
As for rescuing the device, there are at least 3 differnt rescue kernels but ubiboot is the easiest to use and most versatile.
Just load up ubiboot kernel without flashing it, and telnet to the device & run fsck on filesystems.
(or fsck them on USB mount if you have linux)
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2013-10-19
, 08:35
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Posts: 344 |
Thanked: 1,345 times |
Joined on Aug 2012
@ Paris, FR
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#7
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Originally Posted by juiceme
Don't think so: in /home, lost+found if full of stuff, running a e2fsck on /dev/mmcblk0p3 gives me tons of errors.
Did you check that your home is actually mounted?
Happened to me once that, well it was my own fault really as I messed up some boot related things, and /dev/mmcblk0p3 (/home) was not mounted.
What happens then, when the device boots it will create a new /home for you on your root device, and copy the skeleton files to it from /etc.
It will look like your device had been wiped clean, but the old stuff stil exists there on /dev/mmcblk0p3
Originally Posted by juiceme
Great, that's exactly what I was searching for !
As for rescuing the device, there are at least 3 differnt rescue kernels but ubiboot is the easiest to use and most versatile.
Just load up ubiboot kernel without flashing it, and telnet to the device & run fsck on filesystems.
(or fsck them on USB mount if you have linux)
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Blogger at Jollafr and random thoughts on my personnal blog
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Developer of Friends Facebook client, patchmanager, Phonebot
Blogger at Jollafr and random thoughts on my personnal blog
Support my work
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2013-10-22
, 10:42
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Posts: 58 |
Thanked: 10 times |
Joined on Dec 2011
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#8
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Originally Posted by juiceme
Sorry for this silly question but can you tell me the procedure to load the kernel without flashing it.
Just load up ubiboot kernel without flashing it, and telnet to the device & run fsck on filesystems.
(or fsck them on USB mount if you have linux)
| The Following User Says Thank You to bvaibhav For This Useful Post: | ||
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2013-10-22
, 17:41
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Community Council |
Posts: 4,920 |
Thanked: 12,867 times |
Joined on May 2012
@ Southerrn Finland
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#9
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Originally Posted by bvaibhav
When you load up a kernel without flashing, start like you would start flashing, (meaning, device switched off). You do not need to specify the emmc or --flash-only parameters on the command line, just enter the kernel name:
Sorry for this silly question but can you tell me the procedure to load the kernel without flashing it.
"sudo flasher -k <name_of_kernel> -n <name_of_initramfs_if_desided> -l -b"
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