Is it safe to remove default kernel?
I've installed linux-ck kernel from repo-ck with nvidia GPU support. Why don't linux-ck and nvidia-ck replace the respective default kernel packages? Is it safe to remove the default kernel like this "# pacman -R linux nvidia" (I boot with linux-ck)? I'm asking because there are often updates to linux package and I don't use it.
The -ck kernels don't overwrite the kernel, and IDK about the AUR custom kernels, but it's possible to overwrite the stock kernel, especially if you're lazy about looking at the pkgbuild or your own script. I have before. It's not a big deal unless you're missing, you know, like, your disk and keyboard modules.
If you are worried create backup copies of initramfs-linux.img, vmlinuz-linux, initramfs-linux-fallback.img in /boot, and a grub entry for them... it'll be like nothing changed!
Last edited by nathan28 (2012-01-15 22:52:49)
Similar Messages
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Safe to remove linux kernel when using linux-lts kernel?
I'm using the `linux-lts` kernel on my work machine (less reboots after updates); I know in theory it should be safe to remove the normal `linux` kernel (and it's dependencies) but does anyone know if it is safe in practice? Nothing that assumes there will always be a `linux` package because without it there couldn't be a running system?
This should be as easy to figure out, as comparing dependencies can be:
linux-lts:
Required By (5)
archboot
nvidia-lts
r8168-lts
virtualbox-archlinux-modules-lts
virtualbox-modules-lts
linux:
Required By (15)
archboot
cdfs
fcpci
fcpcmcia
lirc
ndiswrapper
nvidia
open-vm-tools-modules
r8168
rt3562sta
vhba-module
virtualbox-archlinux-modules
virtualbox-archlinux-modules (testing)
virtualbox-modules
virtualbox-modules (testing)
That might mean, most notably, that infrared ports and cdemu-driven image mounts won't work with the lts kernel (or at least should not without pulling in the normal kernel). -
Dues to the size of my default mailbox database I created two new mail box databases and moved (using EMC) the existing user mailboxes from the default mailbox into the two new ones (half in each new database). That left me with the Discovery Search
Mailbox which I loved (using EMC) to one of the new databases. Am I now safe to remove the default database or is there something further that I need to do first? I read something about arbitration mailboxes but don't know what those are or if they are
already handled by moving my user mailboxes and the Discovery Search mailbox. When I run "Get-Mailbox -Database" against the default database it shows no objects. I think I'm ready to remove the default database but am nervous about doing that without
checking first.Hi Don,
Hope you are doing well.
there is nothing wrong in removing your default database but there are few steps / precautionary measure that you need to take before you remove your default database and those are as follow.
Move Arbitration Mailboxes
Move Discovery Mailbox
Move User Mailboxes
Move Archive Mailboxes
If you miss out anything and if you try to remove the Default Database you might face a popup with an Error.
Microsoft Exchange Error
The mailbox database ‘Mailbox Database 0089743213′ cannot be deleted.
Mailbox Database 0089743213
Failed
Error:
This mailbox database contains one or more mailboxes, mailbox plans, archive mailboxes, or arbitration mailboxes. To get a list of all mailboxes in this database, run the command Get-Mailbox -Database <Database ID>. To get a list of all mailbox plans
in this database, run the command Get-MailboxPlan. To get a list of archive mailboxes in this database, run the command Get-Mailbox -Database <Database ID> -Archive. To get a list of all arbitration mailboxes in this database, run the command Get-Mailbox
-Database <Database ID> -Arbitration. To disable a non-arbitration mailbox so that you can delete the mailbox database, run the command Disable-Mailbox <Mailbox ID>. To disable an archive mailbox so you can delete the mailbox database, run the
command Disable-Mailbox <Mailbox ID> -Archive. Arbitration mailboxes should be moved to another server; to do this, run the command New-MoveRequest <parameters>. If this is the last server in the organization, run the command Disable-Mailbox <Mailbox
ID> -Arbitration -DisableLastArbitrationMailboxAllowed to disable the arbitration mailbox. Mailbox plans should be moved to another server; to do this, run the command Set-MailboxPlan <MailboxPlan ID> -Database <Database ID>.
Get-Mailbox -Arbitration | NewMove-Request -TargetDatabase "xxxx" ==> This command will get all the arbitration mailboxes and move them to new database to which you want to move.
Get-Mailbox -Filter { RecipientTypeDetails -eq "DiscoveryMailbox" } | new-moverequest -targetdatabase xxxxxx ==> This command will move the discovery mailbox to your new databse.
You can move the user mailbox from Admin Center or EMS by using the following command.
New-moverequest -identity abc@xyz -targetdatabase "xxxx"
Once you are done with the move of all user, discovery and arbitration mailboxes, dismount the database for couple of days to see if there is still any impact on production (It will not have any impact but best practice is to dismount your database first
and then remove it after couple of days). If you don't have any issues with your production after dismounting the default database, remove it after 2-3 days. Thanks.
Regards, Riaz Javed Butt Consultant Microsoft Professional Services MCITP, MCITP (Exchange), MCSE: Messaging, MCITP Office 365 -
Safe to remove mcf properties for Oracle Application Adapter?
Hello all,
I want to remove mcf properties from my Oracle application adapter (Connect to a business event), but I can't deploy the process any more.
Anyone can help?
Jdev: 10.1.3.4.0.4270
SOA Suite: 10.1.3.4 on AIX 5.3
--> From
<!-- These mcf properties are safe to remove.-->
<jca:address location="jdbc/fmis" UIConnectionName="FMIS" UIOracleAppType="WFBES" UIWfEventName="xx.oracle.apps.ap.event.xmlRemit"
ManagedConnectionFactory="oracle.tip.adapter.apps.AppsManagedConnectionFactory"
mcf.ConnectionString="jdbc:oracle:thin:@server1.test.com.au:1524:B2B1"
mcf.UserName="apps"
mcf.Password="7CC4D295E4DDDA919427B6716C0BDD1D" />
--> To
<jca:address location="jdbc/fmis" UIConnectionName="FMIS" UIOracleAppType="WFBES" UIWfEventName="xx.oracle.apps.ap.event.xmlRemit"
ManagedConnectionFactory="oracle.tip.adapter.apps.AppsManagedConnectionFactory" />
--> Error message
BUILD FAILED
C:\projects\eProcurement\PAEBSToB2B\build.xml:78: A problem occured while connecting to server "server1.test.com.au" using port "7783": bpel_PAEBSToB2B_1.0.jar failed to deploy. Exception message is: ORABPEL-09903
Could not initialize activation agent.
An error occured while initializing an activation agent for process "PAEBSToB2B", revision "1.0".
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oracle.tip.adapter.fw.agent.jca.JCAActivationAgent: ORABPEL-12517
AdapterFrameworkImpl::endpointActivation - Endpoint Activation Error.
The Resource Adapter Oracle Applications Resource Adapter was unable to activate the endpoint oracle.tip.adapter.apps.AppsWFBesQueueDequeueActivationSpec:{OpaqueSchema=false, DatabaseSchema=APPS, QueueName=WF_BPEL_Q, Consumer=ORA_6os32h1m84r38di684rj2c1k61, MessageSelectorRule=tab.user_data.event_name = 'xx.oracle.apps.ap.event.xmlRemit', AppsEventSchema=NO_SCHEMA} due to the following reason: ORABPEL-00000
Error in creating the managed connection pool.Invalid Connection Cache Name. Must be a valid String and Unique
Please correct the reported issue and redeploy the BPEL process.
at com.collaxa.cube.engine.core.BaseCubeProcess.startAllActivationAgents(BaseCubeProcess.java:428)
at com.collaxa.cube.engine.deployment.DeploymentManager.activateDefaultRevision(DeploymentManager.java:1733)
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at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
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at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:618)
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at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
at com.evermind.server.ejb.interceptor.system.JAASInterceptor$1.run(JAASInterceptor.java:31)
at com.evermind.server.ThreadState.runAs(ThreadState.java:693)
at com.evermind.server.ejb.interceptor.system.JAASInterceptor.invoke(JAASInterceptor.java:34)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
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at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)
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Regards,
KerrThanks James,
I feel it is not my configuration problem.
Here are my configurations.
All oc4j-ra.xml configuration point to connection pool AppsB2BPool, with a JNDI name jdbc/fmis.
And I only hit this problem when I try to deploy a BPEL process with an application adapter to use e-business event.
$ORACLE_HOME/j2ee/oc4j_soa/config/data-sources.xml
<connection-pool name="AppsB2BPool">
<connection-factory factory-class="oracle.jdbc.pool.OracleDataSource" user="apps" password="PASSWORD" url="jdbc:oracle:thin:@(DESCRIPTIO
N=(ADDRESS_LIST=(LOAD_BALANCE=on)(ADDRESS=(PROTOCOL=tcp)(HOST=testserver.nsw.gov.au)(PORT=1524)))(CONNECT_DATA=(SERVICE_NAME=B2B))
)" commit-record-table-name=""/>
<managed-data-source connection-pool-name="AppsB2BPool" jndi-name="jdbc/fmis" name="FMIS"/>
$ORACLE_HOME/j2ee/oc4j_soa/application-deployments/default/DbAdapter/oc4j-ra.xml
add:
<connector-factory location="eis/DB/FMIS" connector-name="FMIS Database Adapter">
<config-property name="xADataSourceName" value="jdbc/fmis"/>
<config-property name="dataSourceName" value=""/>
<config-property name="platformClassName" value="oracle.toplink.platform.database.Oracle9Platform"/>
<config-property name="usesNativeSequencing" value="true"/>
<config-property name="sequencePreallocationSize" value="50"/>
<config-property name="defaultNChar" value="false"/>
<config-property name="usesBatchWriting" value="true"/>
<connection-pooling use="none">
</connection-pooling>
<security-config use="none">
</security-config>
</connector-factory>
$ORACLE_HOME/j2ee/oc4j_soa/application-deployments/default/AqAdapter/oc4j-ra.xml
add:
<connector-factory location="eis/AQ/FMIS" connector-name="FMIS AQ Adapter">
<config-property name="xADataSourceName" value="jdbc/fmis"/>
<config-property name="dataSourceName" value=""/>
<config-property name="connectionString" value=""/>
<config-property name="userName" value=""/>
<config-property name="password" value=""/>
<config-property name="defaultNChar" value="false"/>
<config-property name="useDefaultConnectionManager" value="false"/>
<connection-pooling use="none">
</connection-pooling>
<security-config use="none">
</security-config>
</connector-factory>
$ORACLE_HOME/j2ee/oc4j_soa/application-deployments/default/AppsAdapter/oc4j-ra.xml
add:
<connector-factory location="eis/Apps/FMIS" connector-name="FMIS Applications Adapter">
<config-property name="xADataSourceName" value="jdbc/fmis"/>
<config-property name="dataSourceName" value=""/>
<connection-pooling use="none">
</connection-pooling>
<security-config use="none">
</security-config>
</connector-factory>
By the way, I have raised a SR 7551800.992 at the same time.
Regards,
Kerr -
Safe to remove battery and run on AC?
Hi, I got my macbook for college. Since it's summer, I'm only using it at home but I don't want to waste my battery cycles. Is it safe to remove the battery from the computer and only use power from the MagSafe power adapter?
letMUSICring wrote:
Hi, I got my macbook for college. Since it's summer, I'm only using it at home but I don't want to waste my battery cycles. Is it safe to remove the battery from the computer and only use power from the MagSafe power adapter?
By default if it senses no battery the CPU will be "throttled" - reduced to half speed. In addition should the MagSafe adapter be accidentally disconnected (it's pretty easy) you'll end up with an uncontrolled shutdown, which could be pretty bad depending on what you're doing. If there's a hard drive write occurring, that could be really bad. The battery is supposed to effectively serve as an uninterruptable power supply (UPS) as well as a supplemental power source when the adapter itself can't handle the load. I suspect the CPU is throttled to prevent it from maxing out the adapter power. -
Oracle Linux Remove Old Kernels
I was just wondering if Oracle Linux by default removes old outdated kernels when I run 'yum update' command? I see new kernels getting installed consistently however I never see any kernels being removed like I expect to see in RHEL as a new kernel is downloaded. Is there a way to see which kernels are installed on my Oracle Linux 6.3 server and how I can remove them so they don't clutter my Grub screen and system?
You can check the grub boot menu, which normally has an entry for all installed kernels:
<pre>
# cat /boot/grub/grub.conf
</pre>
Or query the installed kernel packages:
<pre>
# rpm -qa | grep kernel
</pre>
To remove a kernel, use the YUM utility:
<pre>
# yum remove kernel-package
</pre>
For instance:
<pre>
# rpm -qa | grep kernel
kernel-uek-2.6.32-200.13.1.el5uek
kernel-uek-2.6.32-300.10.1.el5uek
kernel-2.6.18-274.el5
kernel-uek-devel-2.6.32-200.13.1.el5uek
kernel-headers-2.6.18-308.el5
kernel-2.6.18-308.el5
kernel-uek-firmware-2.6.32-300.10.1.el5uek
kernel-uek-devel-2.6.32-300.10.1.el5uek
# uname -r
2.6.32-300.10.1.el5uek
# yum remove kernel-uek-2.6.32-200.13.1.el5uek
</pre>
The example above is for OL 5, but works in OL 6 as well. -
CUPS fail with kernelck ,while works fine with default kernel
I have weird problem with cups. I 've set it up it works good ,my printer prints ,etc but only on default arch kernel ,when i boot with kernelck (from arch reps) i get
cupsd: Child exited on signal 15!
when deamons starts on boot.
It is really weird it work flawlessly on arch default kernel and fail on archck...
I have no idea what to do.I also met this err:
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I [11/Aug/2007:10:00:00 +0800] Using policy "default" as the default!
I [11/Aug/2007:10:00:00 +0800] Full reload is required.
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I [11/Aug/2007:10:00:01 +0800] Loading job cache file "/var/cache/cups/job.cache"...
I [11/Aug/2007:10:00:01 +0800] Full reload complete.
I [11/Aug/2007:10:00:02 +0800] Listening to 127.0.0.1:631 on fd 2...
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remove cups package use
pacman -Rcns cups
reinstall it but still doesn't work -
Protecting site and reducing default kernel queue length
Hi!
This could be more for BEA support, entering this for far too busy client delivery manager.
In our setup we sometimes 'loose' PROD due to running out of (doubled) iPlanet service threads. After analysis it looked, that by reducing a problematic application (doubled) weblocig server(s) default kernel queue to lowest value of 256 the PROD could be 'protected'.
The application is controlled by another service and their tech people are worried is it safe to reduce the kernel queue to lower value.
According to initial testing on lower environments, this leads only that webserver thread is not reserved, due to bounced request. If the queue is full, this results error in logs and immediately returned (failed) request. After requests time out or if requests are served ok, the normal processing seems to take place.
Is it ok to reduce the kernel queu e for badly behaving applications? Are there alternative solutions recommended?
The downstream service is reluctant to make the change, because documentation recommends (weblogic 8.1.5) not to mess with the default settings.
Alternative solution with own webserver(s) for this service has been studied and does not really seem as an option.
Best regards,
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We need to ensure the data integrity, please consider to design your azure storage queue logic, please have a look at this article:
http://azure.microsoft.com/en-gb/documentation/articles/storage-dotnet-how-to-use-queues/
Regards -
I'm unable to boot with the default kernel, since "BIOS Enhanced Disk Drive calls determine boot disk" is enabled.
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Maybe its just me, but I really dont consider my configuration as obscure :-)
It would be great if this was removed from the default kernel unless there is a reason for it to be there?
The problem occur when I have disks attached to the one of Promise controllers.
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00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev f2)
00:1f.0 ISA bridge: Intel Corporation 82801HO (ICH8DO) LPC Interface Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation 82801HR/HO/HH (ICH8R/DO/DH) 6 port SATA AHCI Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02)
02:00.0 SATA controller: JMicron Technologies, Inc. JMicron 20360/20363 AHCI Controller (rev 02)
02:00.1 IDE interface: JMicron Technologies, Inc. JMicron 20360/20363 AHCI Controller (rev 02)
04:01.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link)
04:03.0 Mass storage controller: Promise Technology, Inc. PDC40718 (SATA 300 TX4) (rev 02)
04:04.0 Mass storage controller: Promise Technology, Inc. PDC40718 (SATA 300 TX4) (rev 02)bugs.archlinux.org to make sure its fixed.
the acpi video module is reasonably new and it can be compiled as a module iirc, so it shouldnt be any harm to have it compiled as such.
James -
What is the diffrence between cookies and cache, is it safe to remove cache?
what is the difference between cookies and cache , is it safe to remove cache ? . I had cleaned cookies many times but I have not removed cache , does it goes on increasing day by day ? please let me know
Cookies are small files that contain information useful to a web site -- such as password, preferences, last date visited, etc. You may remove the cookies that you don't want adn since some of them are a privacy issue, many people remove them all.
Cache is just a collection of data downloaded to help display a web page. After you leave a site, much of the cache is left on your computer and is no longer needed. You can always remove the cache because it will be replaced as needed. -
When I started up my computer and clicked Mozilla Firefox a box popped up asking me if I wanted to use Safe Browser or default browser d14 and some more letters and numbers. I have never been asked this and thought maybe there was a problem so I decided to do safe browser. It wasn't until clicking ok that I realized there was a check in a box that said don't ask again open start up. Now I have none of my bookmarks or history and I need those things to be able to pay my bills as well as other sites that I use often, but do not remember how to get to them. I tried shutting down my computer, but now It just takes me to a page and when I try and log in to places it doesn't recognize me. Is there any way to find my previous browser? Please help!
Thanks you,
LindseyDo not use any option to rename or delete profiles.
Do not this stage use any options to restore or import bookmarks.
#With Firefox closed <br /> Use '''WindowsKey''' + '''R''' to get a run box
#Key in ''firefox.exe -P''
#That should offer you a choice of profiles to use. Select one, and look for your bookmarks. Make a note of the profile names, and which bookmarks set you have. (Probably one will have almost no boookmarks, and one will have all your bookmarks)
#Try each profile in turn by repeating the steps.
Post back to say if you found the lost bookmarks. -
How can I remove default alarm for events in iCal on devices ios?
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Default alarms are disabled in macbook, icloud.com, and my ios devices.
How can I remove default alarm for events in iCal on devices ios?
Thanks and sorry for my english.
MacBook Pro, Mac OS X 10.8OK, so I have had this issue for the past several months. I think it all started when I upgraded to ML from SL and migrated my calendars and contacts to iCloud. That was a couple months ago. But now I am running 10.8.2, and about two weeks ago I upgraded my iOS devices to 6.0.1.
I don't seem to be having any issues with events that I create now, but all those old events that were migrated to iCloud a couple months ago, many of those sound alerts on the iOS devices even though there was no alert defined when the event was originally created. I have always had alerts off by default both in iCal and on the iOS devices.
So here's the question: is there a way to go through and disable all these spurious event alerts? I've been disabling them as the event reminders come up, but it's irritating. It would be nice if there was a way to turn them off all in one shot somehow. -
No longer safe to remove iPod after updating (synching)
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Yes, I can manually eject the iPod, but that's a bit of a pain. I'd rather just grab it and go. Any ideas?
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Try to delete other files on your computer, or backup some of the data to CD-R, DVDR or external hard drive and then remove them. -
DVD drive is initiating "safe to remove hardware" by itself
Hi. I am getting the following 2 error messages. I just did a clean re-install of Windows 7 and for the first 3 weeks I had no issues at all (could be unrelated). I am not initiating anything. My laptop is doing this by itself. It just randomly on its own
tries to remove my DVD-ROM. Then it is unable to do it b/c the device is still in use. I have tried searching for this issue and cannot find any other threads. It clicks and beeps and does this all day long - it interrupts my work. The DVD player works just
fine, and when I right-click Properties - it says driver is up to date and device is working. So there appears to be no issues with the device itself... rather that my computer is operating in phantom mode - trying to safely remove hardware on its own that
I am not trying to remove. I have actually gone ahead and removed the DVD drive just to see if it would help, then put it back in, and the problem persists. I am running Window7 64-bit OS. Please help me stop this annoying problem! Thanks!
error 1: "safe to remove hardware. The HL-DT-ST RW/DVD GCC-4247N ATA device can now be safely removed.
error 2: "Problems ejecting HL-DT-ST RW/DVD GCC-4247N ATA device . Windows is unable to stop the device.... Close any programs using this device and then remove it.'Hi,
The reson why I share KB555665 with you is that we can refer to the instruction to use Process Explorer to view what happened with the drive. We can view the detailed process of the drive and find out what is handling\controlling it.
Or there may be some hardware or software that is interfering with the CD or DVD drive. You can test this after restarting your computer in a clean boot state
http://support.microsoft.com/kb/929135
If this issue disappears in this mode, then we can go on to find out the cause. Detailed instructions about How-To are included in KB 929135
Yolanda Zhu
TechNet Community Support -
Eliminating excessive dhcpcd add/remove default route messages
I've been on an IPv6 network for the past several months. I use no network manager (aside from netctl and wifi-menu) and I'm generally wired in. I manually start dhcpcd on my eth0 when I start my computer.
The issue I've been having and have been unable to resolve is the fact that the following two messages have been repeating in my log every 2-10 seconds for the past several months and I now have several thousand of them. It's just getting annoying at this point because it interferes with actually reading relevant log messages via journalctl:
Mar 22 10:45:56 kcuzner-desktop dhcpcd[1109]: eth0: adding default route via fe80::fa8f:caff:fe2d:b464
Mar 22 10:45:56 kcuzner-desktop dhcpcd[1109]: eth0: removing default route via fe80::fa8f:caff:fe2d:b464
No matter what I search, I can't seem to find a way to get rid of these. I keep a terminal open with journalctl -f running almost always and it's just filled with these, quickly pushing away relevant messages such as "codeblocks dumped core". Does anyone have any tips for preventing these sorts of log entries?
Last edited by Los Frijoles (2015-03-22 18:27:41)I don't think there is a way for journalctl to exclude logging from only dhcpcd. Of course, you can filter the real time logging to the group of units that you do want to watch but I think you want to watch everything else, right?
How about trying systemd-networkd rather than dhcpcd? Or, if you are only concerned about certain priority level messages, set the priority level. If everything you want to monitor is priority 4 and below for example, and if this message priority is 6, then you're all set.
Last edited by nullified (2015-03-22 19:43:59)
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