doesn't rhel6 use dracut for the initrd now?
On Tue, Feb 1, 2011 at 3:04 AM, kelvin maxnn <[email protected]> wrote: > Hi all, > sorry for my bad English, in advance. > > Since long time, I have been making custom initrd files for rhel versions > like RHEL4.X , RHEL5.X and now trying the same for RHEL6. > Using the original vmlinuz (that comes with RHEL iso) and my custom initrd, > I used to do pxe booting. > My custom initrd I used to create something like this, pseudo steps:- > 1. Create all the necessary / directory hierarchy like /etc, /usr, etc.etc. > and copy necessary files in that. > 2. /bin/dd if=/dev/zero of=/tmp/initrd.img bs=1k count=165888 (the value of > count is based on some custom calculations) > 3. sbin/mke2fs -b 1024 -q -m0 -F -O none /tmp/initrd.img > 4. /bin/mount -o loop /tmp/initrd.img /mycustominitrd > 5. Using /bin/cp --recursive --preserve , I used to copy the custom > directory hierarchy to /mycustominitrd. > 6. unmount /mycustominitrd. > 7. Using "gzip --force" , I used to create initrd image (without using > mkinitrd or dracut). > This customized initrd image along with original vmlinuz , I use to so pxe > booting my machines. > Up to RHEL5.X, it worked perfectly. But now, it seems that vmlinuz of RHEL6 > expects something different than RHEL5 vmlinuz. > When I do pxe booting the machine using RHEL6's vmlinuz and my initrd, it > takes vmlinuz and initrd through tftp successfully, but after extracting > initrd, it gives me error as follows:- > RAMDISK: gzip image found at block 0 > List of all partitions: > No filesystem could mount root, tried: iso9660 > Kernel panic - not syncing: VFS: Unable to mount root fs on > unknown-block(9,1) > Pid: 1, comm: swapper Not tainted 2.6.32-71.el6.x86_64 #1 > Call Trace: > ............ (please see the screenshot for full details....) > > More surprisingly, if I try to use the same initrd with RHEL5 or RHEL4 > vmlinuz it works perfectly. > > This is the some of the contents of pxelinux.cfg file: > KERNEL feb1/vmlinuz > APPEND ramdisk_blocksize=1024 ramdisk_size=165888 initrd=feb1/initrd.img > IPAPPEND 3 > > Also, if I replace my initrd with initramfs of RHEL6 , i get following > error:- > dracut: FATAL: No or empty root= argument > dracut: Refusing to continue > dracut: FATAL: No or empty root= argument > dracut: Refusing to continue > > > Signal caught! > > Boot has failed, sleeping forever. > > Am I missing something in pxe.cfg ? > Does vmlinuz of RHEL6 expects something more than RHEL5 vmlinuz? > Can anybody please guide me on this issue? > _______________________________________________ > rhelv6-list mailing list > [email protected] > https://www.redhat.com/mailman/listinfo/rhelv6-list > > _______________________________________________ rhelv6-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv6-list
