similar to: lvm initrd -> initramfs

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

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 .

I?ve got a 512M machine and a 330M ( uncompressed ) initrd image. How can I mount the ramdisk? Normal booting seems to want to copy the entire initrd image into a Ramdisk, thus requiring 2X the memory. So what happens is the kernel boots correctly and I get, RAMDISK: ext2 filesystem found at block 0 RAMDISK: Loading 330000 blocks [ 1 disk ] into ram disk And then I never see the light of day after

Hello, I would like to know if initrd is here to stay, now that klibc and initramfs are ready. As the multipath-tools maintainer, I'm facing the choice to 1) put the multipath configuration tool in the initrd * dynamic binary is possible * storage hba drivers as modules loaded * no klibc limitations (no mntent for libsysfs ...) 2) put the multipath configuration tool in the 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) ?

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,

This is most exceedingly weird boot/shutdown sequence that I used once, and can't find a way to adapt to initramfs. Since you guys are trying to adapt all mechanisms that use initrd to using initramfs, this should interest you. initrd has (all binaries static): /bin: init halt mount poweroff pivot_root reboot sh umount /etc: fstab haltrc /dev: null zero tty tty0 tty1 console->tty0 hda1

If I run "rsync -ruv <local> <remote>" twice, no files are copied the second time - as expected. However, if I follow "rsync -ruv <local> <remote>" with "rsync -ruv <remote> <local>", all files are copied from <remote> to <local>. I suspect this is because the timestamps of <remote> files are of when they were

Hello again, I'm always not able to boot-up my CF-FileSystem. (It works with a 2.4.x Kernel!) See: http://syslinux.zytor.com/archives/2006-June/006942.html I dont't understand, why the kernel can't mount the root-fs on exit of "linuxrc". Before finising "linuxrc" I can work on it, start a "bash"-shell, do all sorts of linux-cmds on the root-fs...

hi ya syslinuxerz - i've been slowly working on a making a custom bootable standalone usb-stick with X11 and kde - it's basically builds itself off of a slackware-10.1 server - create a custom initrd.gz ( /dev/ram0 ) http://linux-boot.net/Bootable/InitRD/ - create a custom rootfs.gz ( /dev/loop0 ) http://linux-boot.net/Bootable/RootFS/ - create X11 and kde loopfiles

Hi All, I am trying to start a lxc container using libvirt and I am facing an issue due to pivot_root. The return code from the system call ?pivot_root? is EINVAL (Invalid arguments). I isolated the issue to this specific condition check within the system call. This is an code snippet from fs/namespace.c::pivot_root * error = -EINVAL; if (root.mnt->mnt_root != root.dentry)

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

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 ---

A patch for a few more hiccups and trivialities in kinit.c: * The check_path() calls check for "/root" and "/old_root" - I believe that should be "/root" and "/root/old_root". * chdir("/") is recommended after pivot_root() * init_argv[0] isn't set properly to the basename pointed to by char *s - this fix also eliminates six lines of

Hi, What is the difference between chroot & pivot_root. They don't seem obvious based on the man pages apart from the below mentioned caveats. 1) Inherited Open file descriptors, have to be explicitly closed. 2) Does not change CWD of the process, which can be overcome by doing a chdir before & after chroot call. Any information on this would be useful. Thanks,

--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

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.

Hi, I want to customize initrd so that I can run my application once vmlinuz loads initrd. (similar to dos booting - dos runs autoexec.bat) I copied vmlinuz & initrd from RHEL4 ISO. Mounted initrd renamed 'linuxrc' exe to linuxrc1 created new script linuxrc called linuxrc1 from linuxrc script called my application from linuxrc script. But I receive "kernel panic" error:

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

Hi 1. Is it possible to load an initrd from initramfs ? How would you do this if the initramfs is being loaded dynamically in the kernel (ie having the initramfs as initrd ) Because in this case, you will say root = /dev/initrd and specify 'initrd' as your 'initramfs source file' How will you specify the second initrd source? Thanks Rachita.