Displaying 20 results from an estimated 5000 matches similar to: "Query regarding initramfs"
2005 Feb 14
6
Query regarding initramfs
Hi
I had some doubts regarding what all the init application should do:
>> so, that should that application do?
>> - mount /dev/hda1 /new-root
>> - cd /new-root
>> - run-init
1. Of what I understand, before exitting, init should mount the realroot
and execute the init process.
Is realroot the '/' or the empty directory created (in the cpio
archive) ?
2005 Feb 02
2
Query on Using initramfs
Hi
I am looking at inserting functions in the early user space and want to use
initramfs for this.
I understand this can be achieved using 'initrd' or by making changes in
the 'usr/gen_init_cpio.c' file.
Can someone kindly give me pointers as to how to go about this. I am
looking at the 2.6.x kernel.
Thanks
Rachita.
2005 Apr 06
4
Query on Initramfs' and Initrd's coexistence
Hi
I am trying to have a built in initramfs along with the traditional initrd.
So I mount the initrd from the initramfs, but am facing problems in trying
to run the 'linuxrc'.
Following are the issues:
1. I mount the initrd from the initramfs and exceve 'linuxrc'.
It starts executing linuxrc, but gives the following errors and panics:
Red hat nash version 3.4.42 starting
2005 Aug 09
6
initramfs howto
Hi,
Here's a try at writing an initramfs HOWTO.
This is basically a write-up of a number of interesting emails I collected
over time.
It could probably use an editor, more fact-checking and a bunch of other
good things, but it should be better than nothing ;-)
Daniel
-------------- next part --------------
INITRAMFS HOWTO
0) What are klibc and initramfs?
Initramfs is a ramfs into which
2003 Nov 02
5
booting initramfs
Hi all
I'm trying to boot with initramfs
I build my own root fs, and the kernel build links it, I have
double checked this
when the kernel boots unpack_to_rootfs() returns no error, so
it continues and ....
when It tries to mount the rootfs it tries to mount from
an IDE device (where the kernel was built from), and not from
the initramfs "image"
I think this is not documented
2004 Jun 30
1
initramfs and kernel 2.6.7
Hi,
I 'am trying to launch linux kernel 2.6.7 with initramfs.
My pxelinux.cfg/default file looks as follows:
default a1
prompt 1
timeout 600
label a1
kernel vmlinuz-2.6.7-1
append initrd=initramfs_data.cpio.gz root=/dev/ram0 init=/linuxrc
Kernel image vmlinuz-2.6.7-1 and initramfs_data.cpio.gz was loaded
succesfully by pxelinux.
Kernel says:
checking if image is initramfs... it is
but
2005 Jan 05
1
Status/future for klibc/initramfs
I'm wondering where things are on the roadmap for klibc and
initramfs/early userspace. When will everything be harmonized with the
kernel and be the default? What is left to do?
I'm in my own little world, but I have a pretty good
klibc/hotplug/udev/kinit early userspace that just works (for me). It's
taken me a bit to get things to work because I just couldn't find all
the
2005 Mar 22
1
initramfs memory requirements
Hi,
please correct me if I'm wrong:
- the kernel needs enough ram for the compressed initramfs and the
same files decompressed, so it can decompress the files and boot
the /init on the initramfs.
- if the kernel does not have enough ram, it will kernel panic.
my tests were done on a server with 256 mb ram and a 80MB
compressed initrd. I removed some packages and now it fits
and the
2002 Aug 18
1
initramfs scripts + cpio archive stuff
--32u276st3Jlj2kUU
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Hi all (two) klibc hackers! 8)
Here's the stuff I've been using to build an initramfs image and run it
on one of my machines. Unfortunately, the "init" script contains hard
coded information about where to find the root, etc, but it should give
people a working base to start from.
It
2005 Aug 26
1
lvm initrd -> initramfs
I converted my lvm root initrd to an initramfs by putting glibc, lvm,
pivot_root, my linuxrc, etc. in my initramfs source file. I use ash
compiled against klibc to run my linuxrc
Unfortunately -
pivot_root . initrd
- complains -
pivot_root: Invalid argument
I suspect this may be because you can't pivot_root using a cpio
initramfs root?
If so, what should I do instead? Should I
2006 Jan 14
1
Add cpio implementation to klibc
I was wondering if it would be possible to add a cpio (extraction)
implementation to klibc. Maybe this can be done in a way that the code
could bet shared between klibc and init/initramfs.c in the kernel.
Background of what I'm trying to do: I want to load an initramfs
from flash on a number of different devices. The devices are quite
similar but the partition in flash where the initramfs
2007 Oct 09
2
skeleton for initramfs archive
Hello
Is there a skeleton for an initramfs, like mkinitrd do for an initrd?
An archive where all I could need for my initramfs could be present, with a
shell script ready to fill in with my work to be done.
Thanks
Eurolines : Voyagez au meilleur prix : http://www.alinto.com/pub/
2004 Dec 15
1
only pivot_root supported? [signed]
Hi,
I hope this is the right list for initramfs questions.
First I noticed: with initrd I can use real-root-device and pivot_root
mechanisms. with initramfs only pivot_root works. My init (or linuxrc)
scripts end like this:
mount -t xfs -n -o ro /dev/mapper/root /new-root
umount -n /sys || true
umount -n /dev || true
umount -n /proc || true
cd /new-root
pivot_root . initrd
exec chroot .
2019 Apr 18
1
[PATCH] Allow the initramfs to be persisted across root changes
systemd supports switching back to the initramfs during shutdown in
order to make it easier to clean up the root file system. This is
desirable in order to allow us to remove keys from RAM before rebooting,
making it harder to obtain confidential information by rebooting into an
environment that scrapes RAM contents.
---
debian/changelog | 4 +
2016 Jun 14
1
[PATCH supermin] init: Delete initramfs files before chrooting into the appliance.
After supermin has finished running, the initramfs files sit around
occupying swappable memory but serving no further purpose.
This saves a little memory, at the cost of about 1ms of extra boot
time.
---
init/init.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 48 insertions(+), 2 deletions(-)
diff --git a/init/init.c b/init/init.c
index 733d66e..5ac53e9 100644
---
2003 Nov 21
1
cpio archiving unpacking problem
Hello,
There seems to be problem in the cpio unpack in the kernel in
initramfs. I have an empty "/sys" directory in my cpio archive, but it
never shows up in my extracted initramfs.
I've confirmed that extracting the archive again with cpio results in a
correct tree, but it doesn't appear on boot when extracted by the
kernel.
Any ideas? I poked a bit, but I haven't
2002 Oct 22
1
initramfs scripts and other stuff
Hi,
The attached patch is an update to the latest klibc (I just checked a
few bits into CVS) which adds support for initramfs. Since it contains
bits that aren't available yet on the main site, I've also put a tarball
up which contains only what's in the latest CVS.
The initramfs stuff is what I use here to boot one of my machines; it
works for me, but probably won't work
2007 Oct 12
3
extract the initramfs from a kernel
Hello,
is there a way to extract an initramfs from a running kernel?
and from a kernel lying on a disk?
If yes, how?
Thanks
Eurolines : Voyagez au meilleur prix : http://www.alinto.com/pub/
2005 May 16
2
including modules into initramfs
Hi,
Is there any specific reason why the initramfs is built as one of the
first things in the kernel built process?
I want to include some modules in my initramfs, and since it is built
early that doesn't really work out well.
johannes
2003 Oct 13
5
initramfs as an initrd replacement
Hi ,
One of the things I am working on requires me to have a kernel and an
initrd (as root filesystem , based on busybox) in one single image. I am
trying to use initramfs for this, but there are a few things that I just
can't figure out.
As a test, I made a cpio archive of my own for the kernel source (plain
2.6.0-test5). Everything gets unpacked just fine during boot. Somehow I
was