0

Using kubuntu liveCD in persistent mode, I'd like to allow user to write on boot usb key (to put data out of "casper" file).

  • USB (root) is auto mounted in /cdrom
  • kubuntu is "main" user (uid 999)

Up to now:

kubuntu@kubuntu>touch /cdrom test
touch: cannot touch '/cdrom/test': Permission denied
kubuntu@kubuntu>sudo touch /cdrom test   ==> IT WORKS

So I'd like to set "ownership" to kubuntu user, OR set permission to 777 (as "last chance")

kubuntu@kubuntu:/cdrom$ cat /etc/mtab | grep sdb1
/dev/sdb1 /cdrom vfat rw,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro 0 0
kunbuntu

I've tried:

kubuntu@kubuntu:/cdrom$ sudo mount -o remount,rw /cdrom
kubuntu@kubuntu:/cdrom$ sudo mount -o remount,rw,uid=999,gid=999 /cdrom 
kubuntu@kubuntu:/cdrom$ sudo mount -o remount,rw,uid=999,gid=999,umask=0000 /cdrom

No change...

even tried to modify fstab and add this:

/dev/sdb1 /cdrom vfat rw,noatime,fmask=0000,dmask=0000,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro,uid=999,gid=999 0 0

without luck.

How to allow kubuntu user to write on this key ?

  • Why do you want to write in /cdrom ? This is the place where the Live CD is mounted. Obviously, it is read-only. If you use persistence, the rest of the root fs should be writeable. – solsTiCe Jul 12 '15 at 13:51
0

Just install the Live CD on a USB stick, as you would do on a normal hard drive.

This worked for me a few years ago. I booted my Live ISO in a VirtualBox, mounted the USB and installed it like any Ubuntu (Debian) derived distro.

I hope my answer is not to short :)

0

A live cd rom is not writable when running a operating system from it. I really don't think you could implement any sort of persistence to it. A USB drive however can be used to install a operating system on, that would then allow you to obtain the persistence you require

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.