Lab 3.2 Unable to start container.

Lab 3.2. I'm using the LF pre-built Ubuntu 18.04 on VMware Workstation 15 Player.
Everthing seems to work fine until I try to start the container. I'm afraid the error messages don't mean much to me. Any guidance here would be appreciated. Thanks. ldt
student@ubuntu:~$ cat /etc/subuid student:100000:65536 student@ubuntu:~$ cat /etc/subgid student:100000:65536 student@ubuntu:~$ cat /etc/lxc/lxc-usernet # USERNAME TYPE BRIDGE COUNT student veth lxcbr0 10 student@ubuntu:~$ cat ~/.config/lxc/default.conf lxc.net.0.type = veth lxc.net.0.link = lxcbr0 lxc.net.0.flags = up lxc.net.0.hwaddr = 00:16:3e:xx:xx:xx lxc.idmap = u 0 100000 65536 lxc.idmap = g 0 100000 65536 student@ubuntu:~$
...
Distribution: ubuntu Release: xenial Architecture: amd64 Downloading the image index Downloading the rootfs Downloading the metadata The image cache is now ready Unpacking the rootfs --- You just created an Ubuntu xenial amd64 (20200914_07:42) container. To enable SSH, run: apt install openssh-server No default root or user password are set by LXC.
student@ubuntu:~$ lxc-start -n unpriv-cont-user -d lxc-start: unpriv-cont-user: lxccontainer.c: wait_on_daemonized_start: 842 Received container state "ABORTING" instead of "RUNNING" lxc-start: unpriv-cont-user: tools/lxc_start.c: main: 330 The container failed to start lxc-start: unpriv-cont-user: tools/lxc_start.c: main: 333 To get more details, run the container in foreground mode lxc-start: unpriv-cont-user: tools/lxc_start.c: main: 336 Additional information can be obtained by setting the --logfile and --logpriority options
student@ubuntu:~$ lxc-start -n unpriv-cont-user -F --logfile=/tmp/logfile --logpriority=WARN lxc-start: unpriv-cont-user: network.c: lxc_create_network_unpriv_exec: 2178 lxc-user-nic failed to configure requested network: cmd/lxc_user_nic.c: 576: create_nic: Error attaching veth0YJFD5 to lxcbr0 lxc-start: unpriv-cont-user: start.c: lxc_spawn: 1765 Failed to create the configured network lxc-start: unpriv-cont-user: start.c: __lxc_start: 1939 Failed to spawn container "unpriv-cont-user" lxc-start: unpriv-cont-user: tools/lxc_start.c: main: 330 The container failed to start lxc-start: unpriv-cont-user: tools/lxc_start.c: main: 336 Additional information can be obtained by setting the --logfile and --logpriority options student@ubuntu:~$ cat /tmp/logfile lxc-start unpriv-cont-user 20200914174644.524 WARN start - start.c:lxc_spawn:1746 - Operation not permitted - Failed to allocate new network namespace id lxc-start unpriv-cont-user 20200914174644.575 ERROR network - network.c:lxc_create_network_unpriv_exec:2178 - lxc-user-nic failed to configure requested network: cmd/lxc_user_nic.c: 576: create_nic: Error attaching veth0YJFD5 to lxcbr0 lxc-start unpriv-cont-user 20200914174644.575 ERROR start - start.c:lxc_spawn:1765 - Failed to create the configured network lxc-start unpriv-cont-user 20200914174644.575 ERROR start - start.c:__lxc_start:1939 - Failed to spawn container "unpriv-cont-user" lxc-start unpriv-cont-user 20200914174645.124 ERROR lxc_start - tools/lxc_start.c:main:330 - The container failed to start lxc-start unpriv-cont-user 20200914174645.124 ERROR lxc_start - tools/lxc_start.c:main:336 - Additional information can be obtained by setting the --logfile and --logpriority options student@ubuntu:~$
Comments
-
Hi @ldt,
It is common to see different results when using different Linux distributions or even different images of the same distribution. The LF pre-built and maintained images are aimed mostly at development courses, and have not been tested against the content of this course.
What I notice to be slightly off are the UID and GID mappings from
/etc/subuid
and/etc/subgid
which show for thestudent
user values typically associated withroot
.Can you display the content of both
/etc/subuid
and/etc/subgid
files?Regards,
-Chris0 -
Hi @chrispokorni
Yes, those are shown in the top lines 1-4. But I have just verified them again. I did notice that the result is considerably different from what is shown in the lab. I'm missing the lxd:, root: and ubuntu: entries. I tried proceeding with the privileged container but got the same result. Lab 3.3 however, worked fine.0 -
I believe a different Ubuntu distribution/release will show different outputs, and this has already been reported earlier in the forum.
0
Categories
- All Categories
- 229 LFX Mentorship
- 229 LFX Mentorship: Linux Kernel
- 810 Linux Foundation IT Professional Programs
- 363 Cloud Engineer IT Professional Program
- 183 Advanced Cloud Engineer IT Professional Program
- 82 DevOps Engineer IT Professional Program
- 151 Cloud Native Developer IT Professional Program
- 138 Express Training Courses & Microlearning
- 138 Express Courses - Discussion Forum
- Microlearning - Discussion Forum
- 6.3K Training Courses
- 48 LFC110 Class Forum - Discontinued
- 71 LFC131 Class Forum
- 44 LFD102 Class Forum
- 228 LFD103 Class Forum
- 19 LFD110 Class Forum
- 42 LFD121 Class Forum
- 18 LFD133 Class Forum
- 8 LFD134 Class Forum
- 18 LFD137 Class Forum
- 71 LFD201 Class Forum
- 5 LFD210 Class Forum
- 5 LFD210-CN Class Forum
- 2 LFD213 Class Forum - Discontinued
- 128 LFD232 Class Forum - Discontinued
- 2 LFD233 Class Forum
- 4 LFD237 Class Forum
- 24 LFD254 Class Forum
- 701 LFD259 Class Forum
- 111 LFD272 Class Forum - Discontinued
- 4 LFD272-JP クラス フォーラム
- 13 LFD273 Class Forum
- 179 LFS101 Class Forum
- 1 LFS111 Class Forum
- 3 LFS112 Class Forum
- 3 LFS116 Class Forum
- 7 LFS118 Class Forum
- LFS120 Class Forum
- 9 LFS142 Class Forum
- 8 LFS144 Class Forum
- 4 LFS145 Class Forum
- 3 LFS146 Class Forum
- 2 LFS148 Class Forum
- 15 LFS151 Class Forum
- 4 LFS157 Class Forum
- 44 LFS158 Class Forum
- LFS158-JP クラス フォーラム
- 10 LFS162 Class Forum
- 2 LFS166 Class Forum
- 4 LFS167 Class Forum
- 3 LFS170 Class Forum
- 2 LFS171 Class Forum
- 3 LFS178 Class Forum
- 3 LFS180 Class Forum
- 2 LFS182 Class Forum
- 5 LFS183 Class Forum
- 32 LFS200 Class Forum
- 737 LFS201 Class Forum - Discontinued
- 3 LFS201-JP クラス フォーラム - Discontinued
- 19 LFS203 Class Forum
- 135 LFS207 Class Forum
- 2 LFS207-DE-Klassenforum
- 1 LFS207-JP クラス フォーラム
- 302 LFS211 Class Forum
- 56 LFS216 Class Forum
- 52 LFS241 Class Forum
- 48 LFS242 Class Forum
- 38 LFS243 Class Forum
- 15 LFS244 Class Forum
- 5 LFS245 Class Forum
- LFS246 Class Forum
- LFS248 Class Forum
- 52 LFS250 Class Forum
- 2 LFS250-JP クラス フォーラム
- 1 LFS251 Class Forum
- 156 LFS253 Class Forum
- 1 LFS254 Class Forum
- 1 LFS255 Class Forum
- 9 LFS256 Class Forum
- 1 LFS257 Class Forum
- 1.3K LFS258 Class Forum
- 10 LFS258-JP クラス フォーラム
- 129 LFS260 Class Forum
- 160 LFS261 Class Forum
- 43 LFS262 Class Forum
- 82 LFS263 Class Forum - Discontinued
- 15 LFS264 Class Forum - Discontinued
- 11 LFS266 Class Forum - Discontinued
- 24 LFS267 Class Forum
- 25 LFS268 Class Forum
- 32 LFS269 Class Forum
- 6 LFS270 Class Forum
- 202 LFS272 Class Forum - Discontinued
- 2 LFS272-JP クラス フォーラム
- 4 LFS147 Class Forum
- 1 LFS274 Class Forum
- 4 LFS281 Class Forum
- 12 LFW111 Class Forum
- 262 LFW211 Class Forum
- 184 LFW212 Class Forum
- 15 SKF100 Class Forum
- 1 SKF200 Class Forum
- 1 SKF201 Class Forum
- 797 Hardware
- 199 Drivers
- 68 I/O Devices
- 37 Monitors
- 104 Multimedia
- 174 Networking
- 91 Printers & Scanners
- 85 Storage
- 759 Linux Distributions
- 82 Debian
- 67 Fedora
- 17 Linux Mint
- 13 Mageia
- 23 openSUSE
- 148 Red Hat Enterprise
- 31 Slackware
- 13 SUSE Enterprise
- 354 Ubuntu
- 470 Linux System Administration
- 39 Cloud Computing
- 71 Command Line/Scripting
- Github systems admin projects
- 95 Linux Security
- 78 Network Management
- 102 System Management
- 47 Web Management
- 69 Mobile Computing
- 18 Android
- 38 Development
- 1.2K New to Linux
- 1K Getting Started with Linux
- 374 Off Topic
- 115 Introductions
- 174 Small Talk
- 24 Study Material
- 807 Programming and Development
- 304 Kernel Development
- 485 Software Development
- 1.8K Software
- 263 Applications
- 183 Command Line
- 3 Compiling/Installing
- 987 Games
- 317 Installation
- 102 All In Program
- 102 All In Forum
Upcoming Training
-
August 20, 2018
Kubernetes Administration (LFS458)
-
August 20, 2018
Linux System Administration (LFS301)
-
August 27, 2018
Open Source Virtualization (LFS462)
-
August 27, 2018
Linux Kernel Debugging and Security (LFD440)