linux - lxc-clone not working with overlayfs in centos 7 -


i have created container base , trying create clone of base container backing store overlayfs. fails following error,

lxc_container: bdev.c: overlayfs_mount: 2237 no such device - overlayfs: error mounting /var/lib/lxc/base/rootfs onto /usr/lib64/lxc/rootfs options upperdir=/var/lib/lxc/s0/delta0,lowerdir=/var/lib/lxc/base/rootfs,workdir=/var/lib/lxc/s0/olwork clone failed

any way resolve issue?

thanks,

vishnu ganth

it sounds if overlay filesystem not available in kernel. first, check if listed in /proc/filesystems:

# grep overlay /proc/filesystems nodev   overlay

if it's not there, may available loadable kernel module. can load using modprobe:

# modprobe overlay

if resolves issue, you'll want configure system automatically load module when boots. on systemd-based system, can create /etc/modules-load.d/overlay.conf content:

overlay

and you're done. non-systemd based distributions, consult appropriate documentation.

update

the name of overlay filesystem changed overlayfs overlay @ point. support added in commit 38b3491, made after release of lxc 1.0.7. looks change should available in lxc releases 1.1.1 , later.

the lxc package on centos comes epel repository. should open bug report against package (here) reporting problem; should reasonably easy package maintainer fix epel7.


Comments

Post a Comment

Popular posts from this blog

php - failed to open stream: HTTP request failed! HTTP/1.0 400 Bad Request -

this code i'm using find latitude , longitude of place: function coords($address){ echo $url="http://maps.googleapis.com/maps/api/geocode/json?address=".$address; $json = file_get_contents(urlencode($url)); $data = json_decode($json, true); print_r($data['results'][0]['geometry']['location']['lat']); print_r($data['results'][0]['geometry']['location']['lng']); } however returns warning: failed open stream: http request failed! http/1.0 400 bad request if use above code in simple procedure works fine not in function. note: have tried curl_init()... method produced same result? instead of encoding whole url encode address part. following code work fine $add='jamshoro phase 2'; $url="http://maps.googleapis.com/maps/api/geocode/json?address=".urlencode($add); $json = file_get_contents($url); $data = json_decode($json, true); print_r($data['r
Read more

java - How to filter a backspace keyboard input -

i have code gives message when key number pressed: txtvalueofclause.addeventfilter(keyevent.key_typed, new eventhandler<keyevent>() { @override public void handle(keyevent t) { char ar[] = t.getcharacter().tochararray(); char ch = ar[t.getcharacter().tochararray().length - 1]; if (!(ch >= '0' && ch <= '9')) { system.out.println("the char entered not number"); t.consume(); } } }); now if press on wrong button , press backspace remove it, error message. how can add backspace input if statement? i have found answer: txtvalueofclause.addeventfilter(keyevent.key_typed, new eventhandler<keyevent>() { @override public void handle(keyevent t) { char ar[] = t.getcharacter().tochararray(); char ch = ar[t.getcharacter().tochar
Read more

java - Show Soft Keyboard when EditText Appears -

i have code in android app, alert dialog , keyboard, , when dialog shown want keyboard appear. not , not sure why? here code: final alertdialog.builder alert = new alertdialog.builder(this); alert.settitle("title"); alert.setmessage("message"); final edittext input = new edittext(this); input.setinputtype(inputtype.type_class_number); alert.setview(input); input.setonfocuschangelistener(new view.onfocuschangelistener() { @override public void onfocuschange(view v, boolean hasfocus) { if (hasfocus) { log.i(tag, "in focus"); inputmethodmanager inputmethodmanager = (inputmethodmanager) getsystemservice(context.input_method_service); inputmethodmanager.showsoftinput(input, inputmethodmanager.show_implicit); } } }); but keyboard not appear though edit text in focus, , tell appear why, doesn't come up? thanks in advance.
Read more