r.pfeiffer222
March 19th, 2015, 12:46 AM
Hello everyone!
I am fairly new to using (x)ubuntu, so please excuse me if there is an obvious solution to this problem. However, I could not find the answer anywhere on the web, hence this post.
I am trying to install a LUKS-encrypted Xubuntu 14.04.2 Desktop (i386) distribution on my Acer Aspire One 533.
As mentioned above, I am a ubuntu-newbie, so I followed this (http://thesimplecomputer.info/full-disk-encryption-with-ubuntu)tutorial exactly, and everything worked out exactly as it should (according to the tutorial) until I reach Step 9, where I am supposed to back up my LUKS-headers.
When I type in the terminal (according to the tutorial I linked to above)
root@xubuntu:/# cryptsetup luksHeaderBackup /dev/sda2 --header-backup-file /home/sda2backup.img
I receive the error message
Device /dev/sda2 doesn't exist or access denied.
I redid the whole process multiple times now, and everything works until I get to this point.
I will greatly appreciate any help.
Thank you in advance!
Cheers,
Ronald
Edit:
My System has the following specs:
Acer Aspire One 533-13Drr
Intel Atom N455
1 GB DDR3 RAM
250 GB HDD
The partitions I am trying to install are:
sda1
/boot
500 MB
sda2
/
20 GB
sda3
swap
2 GB
sda4
/home
the rest
I am fairly new to using (x)ubuntu, so please excuse me if there is an obvious solution to this problem. However, I could not find the answer anywhere on the web, hence this post.
I am trying to install a LUKS-encrypted Xubuntu 14.04.2 Desktop (i386) distribution on my Acer Aspire One 533.
As mentioned above, I am a ubuntu-newbie, so I followed this (http://thesimplecomputer.info/full-disk-encryption-with-ubuntu)tutorial exactly, and everything worked out exactly as it should (according to the tutorial) until I reach Step 9, where I am supposed to back up my LUKS-headers.
When I type in the terminal (according to the tutorial I linked to above)
root@xubuntu:/# cryptsetup luksHeaderBackup /dev/sda2 --header-backup-file /home/sda2backup.img
I receive the error message
Device /dev/sda2 doesn't exist or access denied.
I redid the whole process multiple times now, and everything works until I get to this point.
I will greatly appreciate any help.
Thank you in advance!
Cheers,
Ronald
Edit:
My System has the following specs:
Acer Aspire One 533-13Drr
Intel Atom N455
1 GB DDR3 RAM
250 GB HDD
The partitions I am trying to install are:
sda1
/boot
500 MB
sda2
/
20 GB
sda3
swap
2 GB
sda4
/home
the rest