@George: George Moutsopoulos (gmoutso) wrote on 2015-04-29: > OK, I managed! I had to add more modules > > sudo echo "dm_cache" >> /etc/initramfs-tools/modules > sudo echo "dm_cache_mq" >> /etc/initramfs-tools/modules > sudo echo "dm_persistent_data" >> /etc/initramfs-tools/modules > sudo echo "dm_bufio" >> /etc/initramfs-tools/module --- Not exactly related to the original bug, but wanted to address a boo-boo in the above. sudo echo "string" won't use root's access/permissions to write to the files when using the shell-redirection operators '>' or '>>'. sudo will execute 'echo' with root privs, and that will echo "dm_cache" (et al.), however, that output is redirected by the *SHELL* (running as "whoever is running the shell") -- usually the user.
To get around this problem (and not saying there might not be any easier ways, as this seemed a bit roundabout to get what I wanted (have root write the output to "wherever"), I used "dd", as in: echo "dm_cache"|sudo dd of=destination status=none or to append: echo "dm_cache"|sudo dd status=none oflag=append conv=notrunc of=/etc /initramfs-tools/modules or to do all at once: (echo dm_cache echo dm_cache_mq echo dm_persistent_data echo dm_bufio)|sudo dd status=none oflag=append conv=notrunc of=/initramfs-tools/modules I wanted to write a single "char" to a file in /proc/sys/vm (drop_caches). Perhaps needless to say, I put it in a script file to save on typing. :-) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1423796 Title: Unable to mount lvmcache root device at boot time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1423796/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
