Displaying 20 results from an estimated 9000 matches similar to: "hacking grub to control number of retained kernels."
2016 Sep 03
0
hacking grub to control number of retained kernels.
On Fri, Sep 02, 2016 at 10:52:05PM -0400, Fred Smith wrote:
> I've recently had this problem on two C7 systems, wherein when doing "yum
> update", I get a warning about /boot being low on space.
>
> both systems were installed using the partition size recommended by
> Anaconda, right now "df -h" shows /boot as 494M, with 79M free.
>
> I don't
2019 Jan 08
5
How do I remove a kernel
I have 4 kernels in /boot, leaving on 20MB which is not enough for the
next one.
I had installonly_limit= set at 5, as there were some kernel problems.?
After I got the error that there was not enough room for another kernel,
I set installonly_limit= to 3 and did the update with --exclude=kernel*
That worked to update everything else, but not remove the oldest kernel.
How can I remove the
2017 Oct 10
14
/boot partition too small
First off - let me say I am not an administrator.?? I need to know?if there is an easy way to increase my /boot partition.? When I installed CentOS 6 after running 5, it was my oversight not to increase the /boot size.? it's too small and I can't do yum updates.
if it's not easy to actually increase it, is it safe to take a chunk in my root filesystem (like /new.boot or something) and
2019 Jan 08
2
How do I remove a kernel
On 1/8/19 5:30 PM, mark wrote:
> Robert Moskowitz wrote:
>> I have 4 kernels in /boot, leaving on 20MB which is not enough for the
>> next one.
>>
>> I had installonly_limit= set at 5, as there were some kernel problems.
>> After I got the error that there was not enough room for another kernel,
>> I set installonly_limit= to 3 and did the update with
2016 Nov 16
3
Centos 7 Boot Partition
>> What size is recommended for the /boot partition? After doing a fresh
>> install and lengthy backup restore I realized I only made it 200M. Is
>> this going to be a problem?
>
> Mine was about 500 MB and I removed some kernels because I got a warning the
> partition was getting full.
>
> With only two kernels installed, 182 MB are used. I would suggest 1 GB
2015 Aug 23
2
CentOS 7 - Limiting rescue kernel imeges
In order to keep only 3 kernel images on a CentOS 7 I edited /etc/yum.conf and I
put
installonly_limit=3
This parameter works for standard kernel images, but does not work for rescue
images:
$ ls -al /boot/vmlinuz*
-rwxr-xr-x 1 root root 5027376 May 13 20:46
/boot/vmlinuz-0-rescue-2554e2ffad84452bb07401bed0a61089
-rwxr-xr-x 1 root root 3084288 Jun 27 06:42
2015 Aug 24
1
CentOS 7 - Limiting rescue kernel imeges
Nicolas Thierry-Mieg wrote on 24/08/2015 00:24:
>> installonly_limit=3
>>
>>
>> This parameter works for standard kernel images, but does not work for
>> rescue images:
>>
> <snip>
>> Is there a way to keep rescue images within a certain limit?
>
> man yum.conf , search for installonlypkgs (that's on centos6, might vary in 7)
2016 Feb 11
2
heads up: /boot space on kernel upgrade
Default boot volume on Fedora is 500M, with a kernel installonly_limit
of 3. So far this seems sufficient, even accounting for the "rescue
kernel" (which is really a nohostonly initramfs, which is quite a bit
larger than the standard hostonly initramfs used for numbered
kernels).
2017 Oct 14
7
systemctl reboot -- server not accessible after reboot
Hi,
Such a simple problem, but I can't figure out the cause.
Supermicro server with a Xeon E3-1200 cpu.
1U entry level item.
Using CentOS 7
from ~$root --- systemctl reboot
Server disconnects my ssh connection and never comes back up.
Go to the server and the power is on but the server is not accessible by ssh.
When I connect a monitor and keyboard --- non-responsive. It's like
2016 Feb 11
9
heads up: /boot space on kernel upgrade
I have a CentOS 6 machine that was initially installed as CentOS 6.4
in May of 2013. It's /boot filesystem is 200M which, IIRC, was the
default /boot size at the time.
The most recent kernel update (2.6.32-573.18.1.el6) fails because of
lack of space in /boot. The workaround is edit /etc/yum.conf, reduce
installonly_limit from 5 to something lower (I used 3), remove the
oldest kernel via
2019 Mar 27
2
How to specify kernel version when restart kdump
What do you mean? Wouldn't the kernel version always be the actual
running version of the kernel that was booted?
Ben
On 3/26/19 6:16 PM, wuzhouhui wrote:
>> -----Original Messages-----
>> From: "Benjamin Hauger" <hauger at noao.edu>
>> Sent Time: 2019-03-27 00:15:21 (Wednesday)
>> To: centos at centos.org
>> Cc:
>> Subject: Re: [CentOS]
2019 Mar 26
2
How to specify kernel version when restart kdump
kdump operates by booting a fresh kernel to capture the context of a
crashed kernel, and so the only way for kdump to dump a kernel is to
crash it and cause kdump to invoke its post-crash kernel.
You can manually force a running kernel to panic (and invoke a
correctly-configured kdump) with the following command sequence:
> echo 1 > /proc/sys/kernel/sysrq
> echo c >
2013 Apr 22
1
Upgrading 6.3 to 6.4 "kdump: mkdumprd: failed to make kdump initrd" should I be concerned?
Howdy,
Running a round of updates from 6.3 to 6.4 and I'm seeing the following on
all the servers.
Want to make sure I'm not going to end up with a kernel panic if I reboot
into the new kernel or have any other issues.
Apr 22 11:10:21 www kdump: kexec: unloaded kdump kernel
Apr 22 11:10:21 www kdump: stopped
Apr 22 11:10:21 www kdump: mkdumprd: failed to make kdump initrd
Apr 22
2012 Nov 20
12
[PATCH v2 00/11] xen: Initial kexec/kdump implementation
Hi,
This set of patches contains initial kexec/kdump implementation for Xen v2
(previous version were posted to few people by mistake; sorry for that).
Currently only dom0 is supported, however, almost all infrustructure
required for domU support is ready.
Jan Beulich suggested to merge Xen x86 assembler code with baremetal x86 code.
This could simplify and reduce a bit size of kernel code.
2012 Nov 20
12
[PATCH v2 00/11] xen: Initial kexec/kdump implementation
Hi,
This set of patches contains initial kexec/kdump implementation for Xen v2
(previous version were posted to few people by mistake; sorry for that).
Currently only dom0 is supported, however, almost all infrustructure
required for domU support is ready.
Jan Beulich suggested to merge Xen x86 assembler code with baremetal x86 code.
This could simplify and reduce a bit size of kernel code.
2012 Nov 20
12
[PATCH v2 00/11] xen: Initial kexec/kdump implementation
Hi,
This set of patches contains initial kexec/kdump implementation for Xen v2
(previous version were posted to few people by mistake; sorry for that).
Currently only dom0 is supported, however, almost all infrustructure
required for domU support is ready.
Jan Beulich suggested to merge Xen x86 assembler code with baremetal x86 code.
This could simplify and reduce a bit size of kernel code.
2019 Mar 26
2
do not uninstall old when yum install new
Hi,
I have a specific needs that requires yum do not to uninstall old
version when install new one. For example, I found that
yum install kernel
will install new kernel, and old kernel will remained. But
yum install <something-else>
will uninstall old version after install new one, how to disable it?
Thanks.
2009 Apr 09
2
[kdump] failed to load in startup
Hello,
I am new in this mailing,please if somebody knows how to make kdump able to
load in startup.
i will be very thankful,
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2013 Aug 01
1
Installing using kernel-3.4.54 from xen4centos
Hello,
I've used pungi with the following configuration:
repo --name=centos-base --baseurl=ftp://mirrors/centos/6/os/x86_64 --cost=1 --
excludepkgs=qemu-kvm
repo --name=centos-updates --baseurl=ftp://mirrors/centos/6/updates/x86_64 --
cost=1 --excludepkgs=qemu-kvm
repo --name=xen4centos --
baseurl=http://mirror.centos.org/centos/6/xen4/x86_64/ --cost=1
%packages
@base
@core
2014 Dec 01
2
System Hangs At Anaconda Detecting Hardware
Hey All,
I just assembled a new machine.
Mother Board: Gigabyte 78LMT-USB3
Processor: AMD FX8350
Memory: Corsair CMZ16GX3M2A1600C10 2x8 GB
Video: BFG Tech Nvidia GeForce 9600 GT
I tried the 6.6 x86_64 netinstall disk.
I tried the 6.6 x86_64 install DVD
Both fail at the same place:
Anaconda installer init version 13.21.229 starting
mounting /proc filesystem... done
creating /dev