<div dir="ltr">Hi All, I am trying to build and compile a new kernel. Currently, I have linux-2.6.25.11-97.fc9.i686 installed on my machine, which I use to build and compile the new kernel for linux-2.6.19.2. I follow the standard procedure for building and compiling the kernel, but still I am unable to boot my machine from the new kernel. I get the following errors when I try to boot the machine from the new kernel:- Uncompressing Linux... OK, booting the kernel ACPI: Getting cpuindex for acpiid 0x2 ACPI: Getting cpuindex for acpiid 0x3 Red Hat nash version 6.0.52 starting irq20: nobody cared (try booting with the "irqpoll" option) handlers: [<c127ae0f>] (usb-hcd-irq+0x0/0x56) [<c127ae0f>] (usb-hcd-irq+0x0/0x56) Disabling IRQ #20 stabilized: open /proc/scsi/scsi : no such file or directory mount: could not find filesystem '/dev/root' setuproot: moving /dev failed: no such file or directory setuproot: error mounting /proc: no such file or directory setuproot: error mounting /sys: no such file or directory mount failed for selinux on /selinux: no such file or directory switch root: mount failed: no such file or directory ----------------------------------------------------------------------------------- I am copying and pasting grub.conf, fstab and mtab for your reference. grub.conf looks like:- # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You do not have a /boot partition. This means that # all kernel and initrd paths are relative to /, eg. # root (hd0,4) # kernel /boot/vmlinuz-version ro root=/dev/sda5 # initrd /boot/initrd-version.img #boot=/dev/sda default=1 timeout=5 splashimage=(hd0,4)/boot/grub/splash.xpm.gz hiddenmenu title Fedora (<a href="http://2.6.19.2">2.6.19.2</a>) root (hd0,4) kernel /boot/vmlinuz-2.6.19.2 ro root=UUID=3ee35a1d-e3d8-443a-a6cd-810b182c46dd rhgb quiet initrd /boot/initrd-2.6.19.2.img title Fedora (2.6.25.11-97.fc9.i686) root (hd0,4) kernel /boot/vmlinuz-2.6.25.11-97.fc9.i686 ro root=UUID=3ee35a1d-e3d8-443a-a6cd-810b182c46dd rhgb quiet initrd /boot/initrd-2.6.25.11-97.fc9.i686.img title Fedora (2.6.25.6-55.fc9.i686) root (hd0,4) kernel /boot/vmlinuz-2.6.25.6-55.fc9.i686 ro root=UUID=3ee35a1d-e3d8-443a-a6cd-810b182c46dd rhgb quiet initrd /boot/initrd-2.6.25.6-55.fc9.i686.img title Other rootnoverify (hd0,1) chainloader +1 grub.conf (END) ---------------------------------------------------------------------------------------------------------------------- fstab looks like:- UUID=3ee35a1d-e3d8-443a-a6cd-810b182c46dd / ext3 defaults 1 1 #/dev/sda5 / ext3 defaults 1 1 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 UUID=4e05aff6-f50e-4e5e-a1a1-b4d1ddf9ea7f swap swap defaults 0 0 fstab (END) ----------------------------------------------------------------------------------------------------------------------- mtab looks like:- /dev/sda5 / ext3 rw 0 0 proc /proc proc rw 0 0 sysfs /sys sysfs rw 0 0 devpts /dev/pts devpts rw,gid=5,mode=620 0 0 tmpfs /dev/shm tmpfs rw 0 0 none /proc/sys/fs/binfmt_misc binfmt_misc rw 0 0 sunrpc /var/lib/nfs/rpc_pipefs rpc_pipefs rw 0 0 fusectl /sys/fs/fuse/connections fusectl rw 0 0 gvfs-fuse-daemon /home/vishwas/.gvfs fuse.gvfs-fuse-daemon rw,nosuid,nodev,user=vishwas 0 0 mtab (END) -------------------------------------------------------------------------------------------------------------------------- I went through a lot of online blogs that list the same errors as mine and tried the remedies posted there. But so far nothing seemed to have worked for me. I did make initrd image of my own, but it didn't work either. I have rebooted grub may be 1000 times by now. By the way I did try to boot the system from irqpoll option but it was all in vain. I got the same errors as before. Any help is much appreciated. Please, let me know if .config file would be of any help. Thanks in advance........ </div>