lab 2.1 echo: write error: No such process
Hi there,
When trying to do the lab 2.1, I'm stuck at the part when we are supposed to enter:
[email protected]:/sys/fs/cgroup/freezer/mycgroup$ sudo bash -c 'echo 20913 >>tasks'
I get the following error:
echo: write error: No such process
I have tried several times, by opening and closing a new terminal window or a new terminal tab, then entering the corresponding PID number, and I always get the same error. I had no problem following along up until here.
Comments
-
Please provide the following commands and their respective outputs:
First terminal
[email protected]:/sys/fs/cgroup/freezer/mycgroup$ cat tasks
Second terminal
[email protected]:~$ ps
First terminal
[email protected]:/sys/fs/cgroup/freezer/mycgroup$ sudo bash -c 'echo PID >> tasks'
by replacing the PID with the value you are using to write into the tasks file.Regards,
-Chris0 -
[email protected]:/sys/fs/cgroup/freezer/mycgroup$ cat task
[email protected]:~$ ps
PID TTY TIME CMD
13860 pts/1 00:00:00 bash
13872 pts/1 00:00:00 ps[email protected]:/sys/fs/cgroup/freezer/mycgroup$ sudo bash -c 'echo PID >> tasks
Now it worked ... I dont know why. Sorry for the inconvenience
0 -
I had the same issue, I realized the tasks file does not exist, and I´m not able to create it.
0 -
Hi @dalbaran,
Can you provide a screenshot of the commands you run to populate and/or create the tasks file and their respective outputs showing errors?
Regards,
-Chris0
Categories
- 10.1K All Categories
- 35 LFX Mentorship
- 88 LFX Mentorship: Linux Kernel
- 504 Linux Foundation Boot Camps
- 279 Cloud Engineer Boot Camp
- 103 Advanced Cloud Engineer Boot Camp
- 48 DevOps Engineer Boot Camp
- 41 Cloud Native Developer Boot Camp
- 2 Express Training Courses
- 2 Express Courses - Discussion Forum
- 1.8K Training Courses
- 17 LFC110 Class Forum
- 5 LFC131 Class Forum
- 20 LFD102 Class Forum
- 148 LFD103 Class Forum
- 13 LFD121 Class Forum
- 61 LFD201 Class Forum
- LFD210 Class Forum
- 1 LFD213 Class Forum - Discontinued
- 128 LFD232 Class Forum
- 23 LFD254 Class Forum
- 569 LFD259 Class Forum
- 100 LFD272 Class Forum
- 1 LFD272-JP クラス フォーラム
- 1 LFS145 Class Forum
- 23 LFS200 Class Forum
- 739 LFS201 Class Forum
- 1 LFS201-JP クラス フォーラム
- 1 LFS203 Class Forum
- 45 LFS207 Class Forum
- 298 LFS211 Class Forum
- 53 LFS216 Class Forum
- 46 LFS241 Class Forum
- 41 LFS242 Class Forum
- 37 LFS243 Class Forum
- 10 LFS244 Class Forum
- 27 LFS250 Class Forum
- 1 LFS250-JP クラス フォーラム
- 131 LFS253 Class Forum
- 998 LFS258 Class Forum
- 10 LFS258-JP クラス フォーラム
- 87 LFS260 Class Forum
- 126 LFS261 Class Forum
- 31 LFS262 Class Forum
- 79 LFS263 Class Forum
- 15 LFS264 Class Forum
- 10 LFS266 Class Forum
- 17 LFS267 Class Forum
- 17 LFS268 Class Forum
- 21 LFS269 Class Forum
- 200 LFS272 Class Forum
- 1 LFS272-JP クラス フォーラム
- 212 LFW211 Class Forum
- 154 LFW212 Class Forum
- 899 Hardware
- 217 Drivers
- 74 I/O Devices
- 44 Monitors
- 115 Multimedia
- 208 Networking
- 101 Printers & Scanners
- 85 Storage
- 749 Linux Distributions
- 88 Debian
- 64 Fedora
- 14 Linux Mint
- 13 Mageia
- 24 openSUSE
- 133 Red Hat Enterprise
- 33 Slackware
- 13 SUSE Enterprise
- 355 Ubuntu
- 473 Linux System Administration
- 38 Cloud Computing
- 69 Command Line/Scripting
- Github systems admin projects
- 94 Linux Security
- 77 Network Management
- 108 System Management
- 49 Web Management
- 63 Mobile Computing
- 22 Android
- 27 Development
- 1.2K New to Linux
- 1.1K Getting Started with Linux
- 528 Off Topic
- 127 Introductions
- 213 Small Talk
- 20 Study Material
- 794 Programming and Development
- 262 Kernel Development
- 498 Software Development
- 923 Software
- 258 Applications
- 182 Command Line
- 2 Compiling/Installing
- 76 Games
- 316 Installation
- 54 All In Program
- 54 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)