On 5 February 2016 at 12:49, Michael Fothergill < [email protected]> wrote:
> > > On 5 February 2016 at 12:30, Mirko Parthey <[email protected]> wrote: > >> On Thu, Feb 04, 2016 at 06:05:50PM -0600, Dutch Ingraham wrote: >> > I'm not sure debootstrap is what you are looking for here. If you just >> > want to chroot into your Ubuntu,on the same disk, these are the steps: >> > >> > 1. Make a mount point, say /mnt/ubuntu; >> > >> > 2. Mount the partition Ubuntu is on, e.g., <mount /dev/sda3 >> /mnt/ubuntu>; >> > >> > 3. Change directory to /mnt/ubuntu; >> > >> > 4. <mount -t proc proc proc/>; >> > >> > 5. <mount --rbind /sys sys/>; >> > >> > 6. <mount --rbind /dev dev/>; >> > >> > 7. <mount --rbind /run run/>; >> > >> > 8. <cp /etc/resolv.conf etc/resolv.conf>; >> > >> > 9. <chroot /mnt/ubuntu /bin/bash>; >> > >> > 10. <source /etc/profile>; >> > >> > 11. <source ~/.bashrc>; >> > >> > 12. <export PS1="(chroot) $PS1" >> > >> > Of course, you will need to determine certain things up front and >> modify for >> > your particular needs, i.e., which partition Ubuntu is currently >> residing on, >> > whether you need network access, etc. > > If wanted a network connection could I add in /sbin/dhcpd as a command etc? MF Some of these commands will need to >> > be customized/omitted based upon those needs. >> >> This is good advice, and these steps can be automated with the schroot >> package. >> >> For any non-trivial operations inside your guest systems, such as >> installing packages or running daemons, I can recommend Linux containers >> (lxc or libvirt-lxc). > > > I want to install openrc in an install where it can't boot up because I > deleted it by mistake. If I use e.g. lxc how many of the above commands do > I need to enter into it - does it sniff out existing partitions and create > appropriate mount points by itself etc? > > Many thanks for helping me with this. > > MF > > > >> They look like a fully booted Linux system, but >> have low virtualization overhead because they use the host's kernel, >> still they have better isolation from the host system compared to the >> chroot solution. >> >> Regards, >> Mirko >> >> > > > > > > -- Climostat Ltd Rm 5169 The Heath Business & Technical Park The Heath Runcorn Cheshire WA7 4QX Tel. 01 928 515 015
