Unable to mount storage & '/data' on Micromax A311 in TWRP 2.8.6.0 - General Questions and Answers

Hello,
I tried installing a custom rom on my Micromax A311 via TWRP but during the process the phone switched off.
When I turned it on it was stuck on brand logo. Again I tured it off & went into Recovery mode.
Here I can not wipe anything, it says:
Updating partition details . . .
E: Unable to mount '/data'
. . . done
E: Unable to mount storage
E: Unable to mount /data/media during GUI startup
Full SELinux support is present
E: Unable to mount /data/media/twrp/.twrps when trying to read setting files
E: Unable to mount '/data'
MTP Enabled
E: Unable to mount '/data'
E: Unknown MTP message type : 1
E: Unable to format to remove encryption
Updating partition details . . .
E: Unable to mount '/data'
. . . done
E: Unable to mount storage.
What should I do now ?
Please help.

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[Q] Bootloop, data partition error.

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[Q] Problems with partitions

Hello everybody,
i have a LG Optimus One (P500) here, but I can´t install any rom (ATM no ROM is installed). My recovery is WRP v2.8.3.0-MULTI-OS2SD, but I don´t know what "OS2SD" is :-/
First, I´d like to wipe the device completely, so I selected "Wipe" in the main menu. I swiped to the right to start a factory Reset and got the following error:
E: Unable to mount "/system"
E unable to mount storage
E: Unable to mount "/data"
E: Failedd to wipe dalvik
Updating partition details...
E: Unable to mount "/data"
E: Unable to mount "/system"
MTD Formatting "cache"
Done.
Updating partition details...
E: Unable to mount "/data"
E: Unable to mount "/system"
...done
E: Unable to mount storage.
How can I fix this? I can access fastboot, if needed.
Cheers,
jacboy
jacboy said:
Hello everybody,
i have a LG Optimus One (P500) here, but I can´t install any rom (ATM no ROM is installed). My recovery is WRP v2.8.3.0-MULTI-OS2SD, but I don´t know what "OS2SD" is :-/
First, I´d like to wipe the device completely, so I selected "Wipe" in the main menu. I swiped to the right to start a factory Reset and got the following error:
E: Unable to mount "/system"
E unable to mount storage
E: Unable to mount "/data"
E: Failedd to wipe dalvik
Updating partition details...
E: Unable to mount "/data"
E: Unable to mount "/system"
MTD Formatting "cache"
Done.
Updating partition details...
E: Unable to mount "/data"
E: Unable to mount "/system"
...done
E: Unable to mount storage.
How can I fix this? I can access fastboot, if needed.
Cheers,
jacboy
Click to expand...
Click to collapse
O2sd is a whole nother animule. Flash a normal recovery version and try again.

Possible brick.. need assistance from a guru!

Ok so I have a asus transformer tf300t and I have been using Kat Kiss Roms for quite awhile.
I am using TWRP v2.8.1.0 and I have never had ANY issues. I was running KatKiss Lollipop 5.1.1 v29
well I was working with an app I downloaded to create a short video, anyways it crashed the tablet and started to boot but sat at the KatKiss logo for a very long time. I booted into TWRP and noticed it showed 0gb space on my internal storage. I was not able to mount or run a restore.
Here is what TWRP was showing
E: could not mount /data and unable to find crypto footer.
E: unable to mount '/data'
E: unable to recreate /data/media/folder.
Updating Partition details...
E: unable to mount '/cache'
E: unable to mount '/data'
E: unable to mount storage
E: unable to mount /data/media/during GUI startup
E: unable to mount '/cache'
Kernel does not have support for reading SELinux contexts.
E: unable to mount '/cache'
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MTP Enabled
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Any help would be GREATLY appreciated!!!!

galaxy J7 SM-J710F hard reboot faild

Hello xda teams
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E: Error in /cache/recovery/log (I/O error0
# Manual mode v1.0.0#
----Applying multi-csc....
Applying the csc-code :EGY
successfully applied multi-csc.
successfully verify for dmverity hash tree
E: failed to mount /cache (invalid argument)
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E: can't mount /cache recovery/last kernel manual
E: Can't open /cache /recovery/ last kernel manual
E: faild to find /misc partition.
this is it so please help me how to fix this problems.
my phone model is J7 (2016) SM-J710F
Thanks a lot

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