I have a USB stick big enough to be filled with a 4GB image.
Yesterday I got the Emtec S100 that is a little bit less than 4GB so the images xubuntu and others give me an error like: not enough space.
I think: where's the problem, the filesystem occupation is really more little than 4GB so the "missing" data should are null... infact... no way to boot
so I did this:
fdisk to create needed partitions on the "little" stick (I didn't create the swap, is a suicide to have swap partition on flash drive!)
the first partition is a FAT16, 250MB, the second is a classical linux partition.
then I format the partitions with:
mkfs.vfat -n linux-boot /dev/sdb1
mkfs.btrfs -L linux-root /dev/sdb2
(always pay attention to devices!!!)
the options -L and -n allow me to create a label name.
after this I inserted the "original" usb key and I did a rsync to copy all the files preserving permissions and extended attributes with the command:
rsync -avzp /media/linux-rootSOURCE /media/linux-rootDESTINATION
the same for linux-boot
a tip:
if you use Ubuntu it mounts automatically on /media with the labelname so the root partition, called linux-root will be mounted on:
/media/linux-root
inserting a second key, with the same label, the partition will be mounted on /media/linux-root_
please notice the _ at the end!
so also in this case, please pay attention to SOURCE and DESTINATION!!!
it will take about 15 minutes and at the end you will have a nice copy of the contents of the original key.
now you can umount the volumes and test the new key inserting in on the Joggler crossing fingers
I had no problems and worked at the first time, I have ONLY one problem:
the BTRFS image should have compressed binaries... the problem I found is on the destination I lost compression, infact the original is less the 1,5GB (I removed a lot of garbage I didn't need), and the destination is more than 2GB!!!
If you don't consider this, everything is ok!
