| trippeh_ | ha ha ha restoring from backup is triggering anti ddos measures at a colo... breaking my restore | 04:04 |
|---|---|---|
| mahdi_ja | hi all | 06:21 |
| mahdi_ja | i have two netwrok and i want use ubuntu as router . | 06:22 |
| mahdi_ja | eth1 connect to external and eth0 internal network | 06:22 |
| mahdi_ja | i use these command for nat and forwarding | 06:23 |
| mahdi_ja | Masquerade. | 06:23 |
| mahdi_ja | iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE | 06:23 |
| mahdi_ja | # fowarding | 06:23 |
| mahdi_ja | iptables -A FORWARD -i eth1 -o eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT | 06:23 |
| mahdi_ja | # Allow outgoing connections from the LAN side. | 06:23 |
| mahdi_ja | iptables -A FORWARD -i eth0 -o eth1 -j ACCEPT | 06:23 |
| mahdi_ja | all things work correctly but what i do, if i want a computer in external network can access to internal network | 06:24 |
| m1dnight_ | Is there a channel dedicated to duplicity? Or should I bother people here? | 07:15 |
| lordievader | mahdi_ja: You need to port-forward those to the right machines in the internal network. | 07:23 |
| zzarr | hello! | 09:04 |
| zzarr | is it possible to shrink the root partition on a LVM (Ubuntu 18.04 LVM2 with ext4 file system) | 09:05 |
| blackflow | zzarr: yes. first fs, then lv, then anything under it, if needed | 09:06 |
| _ruben | It's tricky, yet possible. But can't be done on a running system, as the filesystem needs to be unmounted to be shrunk. | 09:06 |
| blackflow | yah, has to be done offline | 09:07 |
| zzarr | I mean, without rebooting/accessing the machine physically | 09:07 |
| _ruben | That's pretty much a no-go | 09:07 |
| blackflow | if you're gonna do changes like this now, consider taking advantage of the situation and migrate to zfs or btrfs. they're pooled filesystems and problems like resizing "partitions" don't exist. | 09:08 |
| zzarr | hehe :) | 09:08 |
| zzarr | what about if it's possible to reboot, is it easier then? | 09:09 |
| zzarr | other whys I have to live with the size the root partition have | 09:10 |
| blackflow | zzarr: you can't resize root while the root is mounted and in use. so if you can stick a liveUSB there or reboot into a rescue mode somehow (maybe pxeboot, is this hosted?) | 09:10 |
| zzarr | it's not hosted, it's a physical machine at home | 09:11 |
| zzarr | guess I have to take a monitor and connect it when I come home (and keyboard) | 09:11 |
| _ruben | yup, you might be able to do some nasty bootstrapping tricks to boot a different environemnt on the same host, but hooking up a monitor & keyboard and boot from live cd/usb will be waaay easier and much safer :) | 09:13 |
| zzarr | it's not possible to resize ext4 online I suppose | 09:14 |
| blackflow | in theory, one can use initramfs if /boot is separate. install dropbear and have an initramfs hook to ssh into it before root is mounted. | 09:14 |
| blackflow | zzarr: you can try it. resize2fs /dev/sda2 <smaller byte size> and you'll see it'll refuse | 09:15 |
| blackflow | (sda2 or whatever root is) | 09:15 |
| zzarr | I know, have tried that | 09:15 |
| blackflow | right. "online shrinking not supported" | 09:16 |
| _ruben | a logical volume called sda2, that'd be a nice way to make things confusing ;) | 09:16 |
| zzarr | what would happen if I resized the lvm partition to desired size then ran fsck on the partition? | 09:16 |
| zzarr | it's called /dev/mapper/ubuntu--vg-ubuntu--lv | 09:17 |
| zzarr | not so confusing | 09:17 |
| _ruben | zzarr: you'll likely end up restoring your system from backups :) | 09:18 |
| zzarr | have no backups (nether do I have anything important on the system) | 09:19 |
| zzarr | it's a newly installed system | 09:19 |
| _ruben | reinstall might even be fastest then | 09:19 |
| zzarr | I think I have to bite the apple and boot from USB | 09:20 |
| _ruben | if you're lucky it'll turn out to be a tasty apple | 09:21 |
| zzarr | I realize I need to take the server down in any way, I will install more RAM (it have 4GB now and it will have 12GB after installing more) | 09:24 |
| zzarr | is it possible to check if a machine have one or two physical DIMM's onboard (this question is for another machine) | 09:25 |
| _ruben | dmidecode might be able to figure that out | 09:27 |
| zzarr | thanks | 09:28 |
| zzarr | bbl | 09:28 |
| blackflow | _ruben: yeah :) 'twas just an example tho'. the user is expected to understand what they're doing especially when shrinking root. | 09:30 |
| _ruben | blackflow: i know :) | 09:31 |
| zzarr | I'm back | 10:24 |
| zzarr | I have thought about the situation I have, and realized that a 60GB root might not be entirely bad | 10:25 |
| zzarr | is it possible to cache a repository? | 10:26 |
| ahasenack | good morning | 11:14 |
| ahasenack | kstenerud: did you miss my comments on https://code.launchpad.net/~kstenerud/ubuntu/+source/samba/+git/samba/+merge/356153 ? | 13:40 |
| === paxis_ is now known as paxis | ||
| muhaha | Is possible to use /etc/fstab.d/ to include files? I found this https://unix.stackexchange.com/a/62826/213389, but it does not work in Ubuntu 18.04. Thansk | 14:34 |
| blackflow | muhaha: why not use systemd .mount units? the fstab entries are converted to them anyway, via fstab generator | 14:35 |
| ahasenack | muhaha: it's not mentioned in the fstab manpage | 14:35 |
| blackflow | (that way you can have multiple files) | 14:35 |
| muhaha | blackflow: ah, I shoud learn more systemd.... like these timers and mounts... I will check it | 14:36 |
| jelly | muhaha: no linux distro I've even seen had support for a multiple files split fstab like that | 14:36 |
| muhaha | ah | 14:40 |
| muhaha | Where is stored generated .mount unit by fstab? | 14:40 |
| muhaha | ah, nvm /run/systemd/generator/ | 14:41 |
| muhaha | but instead simple one liner I have to create multiline unit file and then execute daemon-reload; start; enable.... | 14:44 |
| blackflow | write a script | 14:46 |
| plm | TJ-: Hey =D | 15:34 |
| plm | TJ-: How are you? | 15:34 |
| plm | TJ-: I have success doing 16.4 to 18.4. I used a app called pyinstaller to "compile" (generate just one binary) of my app.py python3.6 and put to real ARMv7 hardware. But I forgot about the glibc compatibilty :( Look the error: | 15:46 |
| plm | TJ-: /tmp/a # ./app | 15:46 |
| plm | [856] Error loading Python lib '/tmp/a/libpython3.6m.so.1.0': dlopen: /lib/libc.so.6: version `GLIBC_2.25' not found (required by /tmp/a/libpython3.6m.so.1.0) | 15:46 |
| TJ- | plm: then you need to tell pyinstaller to create a static binary, not dynamically linked - if it is able to that | 15:54 |
| plm | TJ-: hmm, I will check that. BUt if supported, the binary will be bigger? | 15:55 |
| plm | TJ-: actually dynamically linked is ~8MB | 15:55 |
| TJ- | plm: of course; because the static link needs to contain all the dynamically linked libraries | 15:57 |
| plm | TJ-: what do you think? double size? | 15:59 |
| TJ- | plm: I have no idea; it depends on how many libraries need to be linked in. Use "ldd /path/to/binary" to find out which libraries are required | 16:02 |
| plm | TJ-: all right. another solution is I back do 16.4 (i have this vm snapshot :) ) and try install the python3.6 there, where 16.4 has a older glibc. | 16:03 |
| plm | I will to try both options | 16:04 |
| plm | TJ-: root@deskdev-pi:/# ifconfig | 16:04 |
| plm | Warning: cannot open /proc/net/dev (No such file or directory). Limited output. | 16:04 |
| plm | TJ-: ^ this I have in the 16.4 snapshot, not in the 18.4 | 16:04 |
| plm | Was mounted the same way as 18.4 | 16:05 |
| TJ- | plm: oh, I didn't read your error message correctly earlier. it has included the python3.6 lib but that required glibc 2.25! that's harder to solve | 16:05 |
| TJ- | plm: you could possibly work around that by creating a chroot on the target device and but that glibc library (and any others it depends on ) in the chroot with your application | 16:05 |
| TJ- | plm: or, you could build python3.6 locally (in a container) against the glibc version that is on the embedded device, so your application can include the python libs linked with the older glibc | 16:06 |
| plm | TJ-: you say, get older glibc and put in my 18.4 chroot? But how pyinstaller will know to use the older glibc? | 16:07 |
| TJ- | plm: no, I'm saying build python 3.6 in a container that has the same glibc version as is in the embedded device - that might be 16.04 or something else | 16:08 |
| TJ- | plm: do you *need* python 3.6 for your application ? | 16:08 |
| plm | TJ-: in this case, is better to use a crosscompile. But I would like a complete envinroment, to be possible install with easier process more packages, just with apt-get install, and/or pip | 16:09 |
| plm | TJ-: yes, minimal is 3.6 | 16:09 |
| drkokandy | t | 17:10 |
| plm | TJ-: works binary compatibility installting python 3.6 on 16.4 =D | 18:00 |
| plm | #ifconfig | 18:01 |
| plm | Warning: cannot open /proc/net/dev (No such file or directory). Limited output. | 18:01 |
| plm | TJ-: I have this error when I do ifconfig on 16.4 in chroot. on 18.4 I have no errors on ifconfig. Any idea hoe to solve that? | 18:01 |
| jelly | bind-mount /proc into that chroot | 18:02 |
| jelly | or mount it manually inside, mount -t proc proc /proc | 18:03 |
| plm | jelly: trying.. :) | 18:05 |
| plm | jelly: all right :) | 18:11 |
| plm | how is possible, on ubuntu glibc is 2.23, and works on target where glibc is 2.18? | 18:12 |
| plm | TJ-: ^? | 18:19 |
| jbicha | hi, is it desired to have php7.3 available in cosmic universe? or should we remove it for this release | 19:15 |
| jbicha | ok I filed a removal bug. Could someone responsible for php comment on bug 1796753 ? | 19:38 |
| ubottu | bug 1796753 in php7.3 (Ubuntu) "Please remove php7.3 from Ubuntu 18.10" [Undecided,New] https://launchpad.net/bugs/1796753 | 19:38 |
| ahasenack | jbicha: thanks, we will talk about it tomorrow. Most are haveing a day off today | 19:48 |
| ahasenack | having* | 19:48 |
| ahasenack | I'm having a hard time creating the libvirt default network inside a vm in cosmic | 20:06 |
| ahasenack | virbr0 | 20:06 |
| ahasenack | basically the logs show | 20:06 |
| ahasenack | Oct 8 19:59:37 maas-vm systemd-udevd[639]: Could not generate persistent MAC address for virbr0: No such file or directory | 20:06 |
| ahasenack | it seems to create virbr0-nic (note -nic) before: | 20:06 |
| ahasenack | Oct 8 19:59:37 maas-vm systemd-networkd[447]: virbr0-nic: Gained carrier | 20:06 |
| ahasenack | I wonder if the "no such file" error is about the nic name | 20:07 |
| ahasenack | or something deeper, like https://github.com/systemd/systemd/issues/3374 | 20:07 |
| teward | jbicha: if we don't keep 7.3, i noticed a package bug that should be fixed it still lists a breaks: against a 7.2 package | 20:11 |
| teward | that should have a 7.3 equivalent but that may just be me having a brain fart :P | 20:11 |
| ahasenack | weird, it's iptables that is failing | 20:13 |
| ahasenack | # iptables -L | 20:13 |
| ahasenack | iptables: No chain/target/match by that name. | 20:13 |
| ahasenack | odd | 20:13 |
| * ahasenack installs the non-virtual kernel | 20:16 | |
| ahasenack | heh | 20:17 |
| ahasenack | that was some wasted time | 20:21 |
| compdoc | congrats | 20:38 |
| plm | TJ-: hey, are you there? | 22:26 |
| plm | TJ-: I really will need to run that chroot in the VM, becouse I need to run services on it. Examples, I installed mysql on chroot, but the ip of chroot is the same of host. What is need to can boot correctaly on vm. I'm using 16.4 snapshot. | 22:27 |
| TJ- | plm: as I suggested last night, use an LXD container | 22:46 |
| TJ- | plm: See https://askubuntu.com/questions/816886/how-do-run-an-arm-lxd-container-on-my-intel-host#816887 -- it's the same process as for the chroot | 22:47 |
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