clone - SD card cloning using the dd command - Ask Ubuntu


i trying clone sd card may contain number of partitions, of ubuntu cannot recognize. generally, want clone whole volume, not partition. so, mount sd card , see in log viewer:

kernel: [  262.025221]  sdc: sdc1 sdc2  alex@u120432:~$ ls /dev/sdc* /dev/sdc  /dev/sdc1  /dev/sdc2

since want copy whole disk, execute:

dd if=/dev/sdc of=sdimage.img bs=4m

file sdimage.img, 7.9 gb (7,944,011,776 bytes) created (sd card 8 gb). mount sd card , execute:

dd if=sdimage.img of=/dev/sdc bs=4m

the problem second dd command hangs on stage, , never succeeds. after this, cannot reboot or shut down computer, , need switch power off.

is correct approach? maybe there way clone sd card?

os: ubuntu 12.04 (precise pangolin), 32 bit.

you should not using dd on mounted devices. unmount partitions first, command should work.


Comments

Post a Comment

Popular posts from this blog

download - Firefox cannot save files (most of the time), how to solve? - Super User

this not full duplicate of this question or this question , though base question same. however, questions have no answers. for on half year have problems downloading files firefox. when click on download link, download dialog opened asking me do, save or open it. immediately, there error/warning pop-up (twice, can see 1 @ first) ok button. looks this message : "c:\users\%user%\appdata\local\temp\wbbdv9k8.zip.part not saved because source file not read. try again later or contact server administrator." replace '%user%' name of user trying download. after closing pop-up, download dialog disappears , have minimize firefox , open again, see other pop-up. downloading exact same file internet explorer work, not desired. i tried solutions here . tried solutions here . tried disabling extensions. tried fixing permissions on temp folder. tried making files , folder in profile directory non-readonly. tried running firefox administrator. tried ...
Read more

windows - "-2146893807 NTE_NOT_FOUND" when repair certificate store - Super User

i try repair certificate store in windows 10 doing c:\windows\system32>certutil -store -user ‎330000019dba8d5dddb98062a900000000019d "personal" certutil: -store command failed: 0x80090011 (-2146893807 nte_not_found) certutil: object not found. i have double check mmc, certificate details serial number of certificate. still fail repair certificate store. can please help? i getting same error when trying export pfx. turns out had export c:\cert.pfx instead of cert.pfx (it trying export file cert store ( cert:\localmachine\my ).
Read more