Displaying 20 results from an estimated 8000 matches similar to: "Using ramdisks on CentOS"
2011 Apr 14
1
Isolinux 4.02
I am running isolinux 4.02 and ramdisk_size does not seem to have an effect on the ramdisk size. No matter what I set it to in the isolinux.cfg file it seems the limit is 32768. I get the error:
ram0: rw=0, want=360456, limit=32768
EXT2-fs error (device ram0):
My isolinux.cfg file:
LABEL EB
KERNEL vmlinuxE
APPEND initrd=bos.img root=/dev/ram0 rw ramdisk_size=545000
I am running the 2.6.38.2
2007 Dec 18
1
How To increase RAMDISK in CENTOS 4
Hi All,
I am using Centos4.0 and running Squid Reverse Proxy for image caching , i have configured RAMDISK of 265 MB for one cache folder in preproduction environment for testing now i have upgraded RAM upto 8GB, but when i change ramdisk_size parameter in grub.conf and rebooted the server when i tried to format and mount it doesn't work. Can anyone please help me how to increase RAMDISK
2008 Apr 01
4
booting domU with multiple concatenated ramdisks?
Hi!
Some bootloaders (eg. syslinux) have to ability to load multiple
ramdisks, effectively concatenating them. This makes it very easy
to augment ramdisks, like eg. customizing an installer. Can I do
something similar with XEN? Separating the ramdisk cpio arhives with
commas in the config file didn''t work...
--
Thanks,
Feri.
_______________________________________________
Xen-users
2003 Nov 10
2
ramdisk_size
Hey All,
I'am using pxelinux to try and boot a 200meg uncompressed (approx 50
compressed) ramdisk onto a machine with 512meg of ram. It looks as though
I'am running out of memory (attempt to access beyond end of device error).
Is there a limit on what we put for ramdisk_size? Or Is there other
limitations?
thanks
--
Jeff Geddes, BSc(UNB)
Computer Systems Specialist
University of
2004 Jun 30
0
problem loading initrd
Hi,
I am trying to load kernel 2.6.6 on a Soekris net4521 from the network
using PXE. I built my initrd with mkinitrd. RedHat nash (while running
linuxrc) hangs after mounting /proc and says "Creating block devices". I
am using the pxelinux.0 from the syslinux-2.10 distribution and the kernel
and initrd were built on redhat 9.0. I built my kernel with BLK_DEV_RAM,
RAMFS, TMPFS,
2003 Mar 12
1
pb with 2.5.x and ramdisk?
Hello,
I have a problem with a 2.5.62 kernel and ramdisk. I am using isolinux
to create a cd that loads some of its partition in ramdisk. The script
involves mounting a ramdisk (e2fs) on /fake/ramdisk, copying part of the
cd to that mount point, unmounting it, and remounting it on
/fake/needwrite. The problem is that, although the content of
/fake/needwrite gets correctly copied, the content of
2009 Mar 26
2
PXE-Kernel crashes with "RAMDISK: incomplete write ..." after modifiying initrd.img
Hi,
to install current PC models (with new Intel NICs) via Kickstart/PXE, I
wanted to add the newest e1000e-Treiber to initrd.img. With this
modified image, the Kickstart kernel crashes with the following error
messages:
[...]
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
RAMDISK: Compressed image found at block 0
RAMDISK: incomplete write (20480 != 32768) 6062080
2009 Mar 19
0
Full config file with Timeout issue
isoconfig.sys file below - Only change from past is adding stuff after the
bz28.7 kernel.
DEFAULT vesamenu.c32
Prompt 0
menu color screen 37;40 #80ffffff #00000000
menu color border 30;44 #40000000 #00000000
menu color title 1;33;44 #c0fdd017 #00000000
menu color unsel 37;44 #90ffffff #00000000
menu color hotkey 1;37;44 #ffffffff #00000000
menu color sel 7;37;40
2007 Jan 25
4
vesamenu.c32 and cat.c32
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
I have done some additional testing, and gotten it a bit close to what I was
looking for. I had to modify the cat.c to eliminate the printing of the
arguments and file name, and added a Press Enter to return menu line.
With the below isolinux.cfg the options do display the files, and pressing
enter than returns to the vesamenu.
DEFAULT
2010 May 01
2
Upgrading to 2.6.32
I want to upgrade a 5.4 box with the 2.618 kernel to a shiny new 2.6.32
kernel. Anyone done it? Is it possible? Are there gotcha's to watch out for?
Any advice is appreciated. A link to a decent howto would be awesome.
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2009 Apr 14
1
Ramdisk
On Centos 4.x 32 I want to create like a 64Mbyte ramdisk. Is there a
problem putting 30k to 80k empty files on a ramdisk? Is there a
simple howto on creating a ramdisk that anyone knows of off the top of
there head?
Matt
2009 Feb 12
2
Problem with PXEBOOT of diskless client -- fails to mount RAMDISK
I am having a problem with setting up diskless clients under CentOS 5.2.
I have everything working under CentOS 4.7. This is an adaptation of
the (somewhat old) Diskless Linux with PXE HOWTO by Gerd v. Egidy,
originally at the URL
http://www.intra2net.com/opensource/diskless-howto/, which is now defunt
(there is a mirror of it at
http://blog.chinaunix.net/u/2389/showart_82438.html).
What I am
2015 Jun 24
6
LVM hatred, was Re: /boot on a separate partition?
On 06/23/2015 08:10 PM, Marko Vojinovic wrote:
> Ok, you made me curious. Just how dramatic can it be? From where I'm
> sitting, a read/write to a disk takes the amount of time it takes, the
> hardware has a certain physical speed, regardless of the presence of
> LVM. What am I missing?
Well, there's best and worst case scenarios. Best case for file-backed
VMs is
2012 Jul 16
4
Can't get Grub work on clone of machine
Hi.
I have cloned a RHEL 5.6 physical server over to a ESXi 5.0 Virtual Machine.
Using a live CD on the new Virtual Machine I created 3 partition /boot
(/dev/sda1), / (/dev/sda2) and swap (/dev/sda3), I then mounted the /
(sda2) partition and created the /boot directory and mount the boot
partition partition /dev/sda1 into /boot. I then used rsync to copy
the source machine over to the Virtual
2016 Mar 26
2
Follow up to adding EFI boot?
Have been trying some things, but something isn't working at least with using
Virtual Box with EFI option. With it off, the cd boots as normal, and works, but
with EFI on, it has an error that flashes on screen, and then it drops to a shell
prompt. I'm hoping it is just a dumb mistake I am making, and can be
resolved. Perhaps I've named the directories incorrectly, or there is a
2005 Jan 02
5
Xen0 crash dump (/dev/ram0 root) possibly of interest
I''m continuing to work on making a new XenCD as previously discussed here. In
the course of that work, I''ve generated (actually, currently stuck on) the
enclosed crash dump. Thought I''d forward it for interest.
To head off questions, you''ll see references to a very large initrd (~114 Mb).
The Xen dump may or not be related to this unusual usage.
2017 Oct 04
8
how to prevent files and directories from being deleted?
On Tuesday 03 October 2017 18:24:01 Mark Haney wrote:
> What issue? That the PID is dropped on reboot?? What else are you
> putting in there?? I'm beginning to question whether you know what
> you're doing or not.? Lighttpd doesn't store any persistent info in
> /var/run/ because, like everything else, /var/run isn't for persistent
> data.
Mark, Many Non-Centos
2006 Apr 10
1
Re: update - 512 Simultaneous Calls with DigitalRecording
The simplest solution and the one already implemented in linux, tmpfs.
It would be best to allocate 4-8GB to tmpfs on /tmp and let the kernel
do the work it was designed to do. And you would not be limited to PCI
bus speeds. The DDR2800 is about 12GB/sec. Some would say "overheads,
etc, etc".
Agreed, even at 95% loss (doubtful) you still get higher badwitch then
PCI bus/hard rive could
2005 Mar 04
1
Unicode problem.
Hi!
Here is my isolinux.cfg. It's slackware based.
======================
default Kernels/bare.i/bzImage initrd=initrd.img load_ramdisk=1
prompt_ramdisk=0 ramdisk_size=8192 rw root=/dev/ram ZILIX_KERNEL=bare.i
prompt 1
timeout 1200
font lat1-16.psfu
display mensagem.msg
F1 mensagem.msg
F2 opcoes.msg
F3 help.msg
label linux
kernel Kernels/bare.i/bzImage
append -
label adaptec.s
kernel
2009 Jan 08
1
PV Clone
I''ve followed the howto at
virtuatopia.com<http://www.virtuatopia.com/index.php/Building_a_Xen_Virtual_Guest_Filesystem_on_a_Disk_Image_%28Cloning_Host_System%29>to
clone existing machines, then create them as PV guests. It has worked
a
couple of times for me, but I''ve run into a problem I don''t understand. When
I run "xm create name", I get an error that