Messages in this thread | | | Date | Tue, 27 Dec 2011 13:11:49 -0500 | Subject | Re: Offtopic? - I have a vmlinuz-3.2.0-rc7+ kernel file that will not load -- ("invalid magic number") with the latest Ubuntu grub2 (1.99-14ubuntu2) | From | Miles Lane <> |
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On Tue, Dec 27, 2011 at 12:05 AM, Miles Lane <miles.lane@gmail.com> wrote: > On Mon, Dec 26, 2011 at 5:11 PM, Miles Lane <miles.lane@gmail.com> wrote: >> Sorry to ask a potentially off-topic question, but I have received no >> help from the GRUB2 mailing list. >> The reply I got was: >> "Well apparently the number you gave it wasn't magic ;) just a >> joke. I really don't have a good answer , I wish I did. Sorry , I just >> needed to clown for a bit." >> http://comments.gmane.org/gmane.comp.boot-loaders.grub.user/974 >> >> If noone has time to help, no problemo. I suppose that when Canonical >> releases the final 12.04 that the problem will go away with a fresh >> install. >> >> I have a 3.2.0-6 kernel that Canonical built which successfully boots. >> I have tried building a Linus GIT tree kernel using the .config that >> Canonical used, but it still fails to boot. >> My best guess is that perhaps there is either a problem with my Grub2 >> (1.99-14ubuntu2) installation, or that something is amiss with my >> toolchain. >> >> I am running a WUBI install (the root filesystem is located in a >> loopback mounted file on my Windows 7 NTFS filesystem). The >> distribution is Ubuntu 11.10 upgraded to 12.04 (Precise Pangolin). >> >> >> fdisk: >> Disk /dev/sda: 500.1 GB, 500107862016 bytes >> 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors >> Units = sectors of 1 * 512 = 512 bytes >> Sector size (logical/physical): 512 bytes / 512 bytes >> I/O size (minimum/optimal): 512 bytes / 512 bytes >> Disk identifier: 0x8ea8e911 >> >> Device Boot Start End Blocks Id System >> /dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT >> /dev/sda2 206848 976771071 488282112 7 HPFS/NTFS/exFAT >> >> mount: >> /dev/loop0 on / type ext3 (rw,commit=0,commit=0) >> proc on /proc type proc (rw,noexec,nosuid,nodev) >> sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) >> none on /sys/fs/fuse/connections type fusectl (rw) >> none on /sys/kernel/debug type debugfs (rw) >> none on /sys/kernel/security type securityfs (rw) >> udev on /dev type devtmpfs (rw,mode=0755) >> devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) >> tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755) >> none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880) >> none on /run/shm type tmpfs (rw,nosuid,nodev) >> /dev/sda2 on /host type fuseblk >> (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other,blksize=4096) >> binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc >> (rw,noexec,nosuid,nodev) >> gvfs-fuse-daemon on /home/miles/.gvfs type fuse.gvfs-fuse-daemon >> (rw,nosuid,nodev,user=miles) >> >> Gnu C 4.6 >> Gnu make 3.81 >> binutils 2.22 >> util-linux 2.20.1 >> mount support >> module-init-tools 3.16 >> e2fsprogs 1.42-WIP >> pcmciautils 018 >> PPP 2.4.5 >> Linux C Library 2.13 >> Dynamic linker (ldd) 2.13 >> Procps 3.2.8 >> Net-tools 1.60 >> Kbd 1.15.2 >> Sh-utils 8.13 >> wireless-tools 30 >> >> Modules Loaded: parport_pc ppdev lp parport hid_logitech_dj joydev >> bnep rfcomm bluetooth snd_hda_codec_hdmi snd_hda_codec_realtek >> binfmt_misc usbhid hid uvcvideo videodev v4l2_compat_ioctl32 >> snd_usb_audio snd_usbmidi_lib snd_hda_intel snd_hda_codec snd_hwdep >> snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer >> snd_seq_device i915 drm_kms_helper drm i2c_algo_bit video mei psmouse >> snd serio_raw soundcore snd_page_alloc shpchp e1000e >> >> My system board is an INTEL DH67BL, BIOS >> BLH6710H.86A.0110.2011.0415.1506 04/15/2011 > > I set debug=all at the Grub2 command line and tried to load my custom kernel. > The point where the failure occurs is when Grub checks to see whether > the root filesystem is ext2: > > kern/disk.c:245: Opening 'loop0'. > kern/fs.c:54: Detecting tarfs... > failed > kern/fs.c:54: Detecting iso9660... > failed > kern/fs.c:54: Detecting ext2... > failed > > Then I tried to load the Ubuntu vmlinuz-3.2.0-6-generic > And it gave: > > kern/fs.c:54: Detecting ext2... > loader/i386/linux.c:201 real_size = 1800, prot_size = 4b1000, mmap_size = 2000 > > So, I am confused whether this problem is: > 1. A failure of Grub2 resulting from some flaw that causes any > custom kernel installation to fail to boot because this detection > fails in Grub2. > 2. A failure of Grub2 to successfully detect the loop mounted > filesystem at ext2 because there is a problem with a driver in Linus' > GIT tree. > > Any thoughts on what the problem is?
Boot Info Script 0.60 from 17 May 2011
============================= Boot Info Summary: ===============================
=> Windows is installed in the MBR of /dev/sda.
sda1: __________________________________________________________________________
File system: ntfs Boot sector type: Windows Vista/7 Boot sector info: No errors found in the Boot Parameter Block. Operating System: Boot files: /bootmgr /Boot/BCD
sda2: __________________________________________________________________________
File system: ntfs Boot sector type: Windows Vista/7 Boot sector info: No errors found in the Boot Parameter Block. Operating System: Windows 7 Boot files: /Windows/System32/winload.exe /wubildr /ubuntu/winboot/wubildr /wubildr.mbr /ubuntu/winboot/wubildr.mbr /ubuntu/disks/root.disk /ubuntu/disks/swap.disk
sda2/Wubi: _____________________________________________________________________
File system: ext3 Boot sector type: - Boot sector info: Operating System: Ubuntu precise (development branch) Boot files: /boot/grub/grub.cfg /etc/fstab
============================ Drive/Partition Info: =============================
Drive: sda _____________________________________________________________________
Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sda1 * 2,048 206,847 204,800 7 NTFS / exFAT / HPFS /dev/sda2 206,848 976,771,071 976,564,224 7 NTFS / exFAT / HPFS
"blkid" output: ________________________________________________________________
Device UUID TYPE LABEL
/dev/loop0 e4635099-89df-4538-8a43-cefac4a53b3b ext3 /dev/sda1 FC700CEB700CAE88 ntfs System Reserved /dev/sda2 9A200E69200E4CA7 ntfs
================================ Mount points: =================================
Device Mount_Point Type Options
/dev/loop0 / ext3 (rw,commit=0,commit=0) /dev/sda2 /host fuseblk (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
======================== sda2/Wubi/boot/grub/grub.cfg: =========================
-------------------------------------------------------------------------------- # # DO NOT EDIT THIS FILE # # It is automatically generated by grub-mkconfig using templates # from /etc/grub.d and settings from /etc/default/grub #
### BEGIN /etc/grub.d/00_header ### if [ -s $prefix/grubenv ]; then set have_grubenv=true load_env fi set default="0" if [ "${prev_saved_entry}" ]; then set saved_entry="${prev_saved_entry}" save_env saved_entry set prev_saved_entry= save_env prev_saved_entry set boot_once=true fi
function savedefault { if [ -z "${boot_once}" ]; then saved_entry="${chosen}" save_env saved_entry fi }
function recordfail { set recordfail=1 if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi }
function load_video { insmod vbe insmod vga insmod video_bochs insmod video_cirrus }
insmod part_msdos insmod ntfs set root='(hd0,msdos2)' search --no-floppy --fs-uuid --set=root 9A200E69200E4CA7 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) if loadfont /usr/share/grub/unicode.pf2 ; then set gfxmode=1680x1050x32 load_video insmod gfxterm insmod part_msdos insmod ntfs set root='(hd0,msdos2)' search --no-floppy --fs-uuid --set=root 9A200E69200E4CA7 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) set locale_dir=($root)/boot/grub/locale set lang=en_US insmod gettext fi terminal_output gfxterm if [ "${recordfail}" = 1 ]; then set timeout=-1 else set timeout=10 fi ### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ### set menu_color_normal=white/black set menu_color_highlight=black/light-gray if background_color 44,0,30; then clear fi ### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ### ### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/10_lupin ### if [ ${recordfail} != 1 ]; then if [ -e ${prefix}/gfxblacklist.txt ]; then if hwmatch ${prefix}/gfxblacklist.txt 3; then if [ ${match} = 0 ]; then set linux_gfx_mode=keep else set linux_gfx_mode=text fi else set linux_gfx_mode=text fi else set linux_gfx_mode=keep fi else set linux_gfx_mode=text fi export linux_gfx_mode if [ "$linux_gfx_mode" != "text" ]; then load_video; fi menuentry 'Ubuntu, with Linux 3.2.0-7-generic' --class ubuntu --class gnu-linux --class gnu --class os { set gfxpayload=$linux_gfx_mode insmod part_msdos insmod ntfs set root='(hd0,msdos2)' search --no-floppy --fs-uuid --set=root 9A200E69200E4CA7 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) linux /boot/vmlinuz-3.2.0-7-generic root=UUID=9A200E69200E4CA7 loop=/ubuntu/disks/root.disk ro quiet splash vt.handoff=7 initrd /boot/initrd.img-3.2.0-7-generic } menuentry 'Ubuntu, with Linux 3.2.0-7-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os { set gfxpayload=$linux_gfx_mode insmod part_msdos insmod ntfs set root='(hd0,msdos2)' search --no-floppy --fs-uuid --set=root 9A200E69200E4CA7 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) echo 'Loading Linux 3.2.0-7-generic ...' linux /boot/vmlinuz-3.2.0-7-generic root=UUID=9A200E69200E4CA7 loop=/ubuntu/disks/root.disk ro recovery nomodeset echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-3.2.0-7-generic } submenu "Previous Linux versions" { menuentry 'Ubuntu, with Linux 3.2.0-6-generic' --class ubuntu --class gnu-linux --class gnu --class os { set gfxpayload=$linux_gfx_mode insmod part_msdos insmod ntfs set root='(hd0,msdos2)' search --no-floppy --fs-uuid --set=root 9A200E69200E4CA7 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) linux /boot/vmlinuz-3.2.0-6-generic root=UUID=9A200E69200E4CA7 loop=/ubuntu/disks/root.disk ro quiet splash vt.handoff=7 initrd /boot/initrd.img-3.2.0-6-generic } menuentry 'Ubuntu, with Linux 3.2.0-6-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os { set gfxpayload=$linux_gfx_mode insmod part_msdos insmod ntfs set root='(hd0,msdos2)' search --no-floppy --fs-uuid --set=root 9A200E69200E4CA7 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) echo 'Loading Linux 3.2.0-6-generic ...' linux /boot/vmlinuz-3.2.0-6-generic root=UUID=9A200E69200E4CA7 loop=/ubuntu/disks/root.disk ro recovery nomodeset echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-3.2.0-6-generic } menuentry 'Ubuntu, with Linux 3.2.0-rc7+' --class ubuntu --class gnu-linux --class gnu --class os { set gfxpayload=$linux_gfx_mode insmod part_msdos insmod ntfs set root='(hd0,msdos2)' search --no-floppy --fs-uuid --set=root 9A200E69200E4CA7 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) linux /boot/vmlinuz-3.2.0-rc7+ root=UUID=9A200E69200E4CA7 loop=/ubuntu/disks/root.disk ro quiet splash vt.handoff=7 initrd /boot/initrd.img-3.2.0-rc7+ } menuentry 'Ubuntu, with Linux 3.2.0-rc7+ (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os { set gfxpayload=$linux_gfx_mode insmod part_msdos insmod ntfs set root='(hd0,msdos2)' search --no-floppy --fs-uuid --set=root 9A200E69200E4CA7 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) echo 'Loading Linux 3.2.0-rc7+ ...' linux /boot/vmlinuz-3.2.0-rc7+ root=UUID=9A200E69200E4CA7 loop=/ubuntu/disks/root.disk ro recovery nomodeset echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-3.2.0-rc7+ } menuentry 'Ubuntu, with Linux 3.2.0-rc7+.old' --class ubuntu --class gnu-linux --class gnu --class os { set gfxpayload=$linux_gfx_mode insmod part_msdos insmod ntfs set root='(hd0,msdos2)' search --no-floppy --fs-uuid --set=root 9A200E69200E4CA7 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) linux /boot/vmlinuz-3.2.0-rc7+.old root=UUID=9A200E69200E4CA7 loop=/ubuntu/disks/root.disk ro quiet splash vt.handoff=7 initrd /boot/initrd.img-3.2.0-rc7+ } menuentry 'Ubuntu, with Linux 3.2.0-rc7+.old (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os { set gfxpayload=$linux_gfx_mode insmod part_msdos insmod ntfs set root='(hd0,msdos2)' search --no-floppy --fs-uuid --set=root 9A200E69200E4CA7 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) echo 'Loading Linux 3.2.0-rc7+.old ...' linux /boot/vmlinuz-3.2.0-rc7+.old root=UUID=9A200E69200E4CA7 loop=/ubuntu/disks/root.disk ro recovery nomodeset echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-3.2.0-rc7+ } } ### END /etc/grub.d/10_lupin ###
### BEGIN /etc/grub.d/20_linux_xen ### ### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ### ### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ### ### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ### # This file provides an easy way to add custom menu entries. Simply type the # menu entries you want to add after this comment. Be careful not to change # the 'exec tail' line above. ### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ### if [ -f $prefix/custom.cfg ]; then source $prefix/custom.cfg; fi ### END /etc/grub.d/41_custom ### --------------------------------------------------------------------------------
============================= sda2/Wubi/etc/fstab: =============================
-------------------------------------------------------------------------------- # UNCONFIGURED FSTAB FOR BASE SYSTEM /host/ubuntu/disks/swap.disk none swap sw 0 0 --------------------------------------------------------------------------------
================= sda2/Wubi: Location of files loaded by Grub: =================
GiB - GB File Fragment(s)
1.301773071 = 1.397768192 boot/grub/grub.cfg 2 13.741065025 = 14.754356224 boot/initrd.img-3.2.0-6-generic 62 13.749551773 = 14.763468800 boot/initrd.img-3.2.0-7-generic 63 1.417470932 = 1.521997824 boot/initrd.img-3.2.0-rc7+ 22 2.067645073 = 2.220116992 boot/vmlinuz-3.2.0-6-generic 94 13.718629837 = 14.730266624 boot/vmlinuz-3.2.0-7-generic 24 1.418664932 = 1.523279872 boot/vmlinuz-3.2.0-rc7+ 30 1.388851166 = 1.491267584 boot/vmlinuz-3.2.0-rc7+.old 31 13.749551773 = 14.763468800 initrd.img 63 13.741065025 = 14.754356224 initrd.img.old 62 13.718629837 = 14.730266624 vmlinuz 24 2.067645073 = 2.220116992 vmlinuz.old 94 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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