Friday, June 8, 2012

Data Dump

Isos which are "hybrid" in nature can be successfully copied to a usb key using the dd unix command.  In osx when using this command and specifying the dev symlink, it results in an extremely slow copy. Using the rdsk sym link seems to alleviate this problem and speeds up the copy tenfold.

'$diskutil list' to show devices
then '$dd if=~/Downloads/*.iso of=/dev/rdisk1 bs=1m

in linux, of=/dev/sd*.

you will want to ensure that your usb drive is mounted first.  Occasionally you may find that your usb drive hangs. That is, when it is removed and reinserted, it will not mount, and any attempt to mount it can result in a daemon inhibited error.  To solve this issue run the bash command.

sudo killall udisks

you should then be able to remount and use the dd command or let unetbootin copy to your usb drive.

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