I boot with systemrescuecd 4.3.1, and run like below.
$ mkdir /tmp/os
$ mount /dev/sda1 /tmp/os
$ mount -o bind /sys /tmp/os/sys
$ mount -o bind /dev /tmp/os/dev
$ mount -o bind /proc /tmp/os/proc
$ /usr/bin/chroot /tmp/os /bin/sh -c "apt-get purge fglrx*; apt-get install fglrx*; update-initramfs -u -k 3.5.0-54-generic"
...
FATAL: Could not load /lib/modules/3.10.53-std431-amd64/modules.dep: No such file or directory
...
It's likely that 3.10.53-std431-amd64 belongs to a chroot's host
...
The apt files are in "/var/cache/apt/archives" on "/dev/sda1".
Or is it even practical doing this way? Anyone succeed?
Thanks for the help.