Hi, iam try to do a setup thats descripted in this how to: http://www.howtoforge.com/how-to-se...-system-incl-grub2-configuration-ubuntu-10.04 All was ok, but when iam trying to tested a get boot from sda if remove sdb, but if remove sda, sdb dont boot, and say these: cant find the device 8f67c746-fcb9-4735-a3c3-deb113204ae7 and give me a grub console. So, i reconect sda, boot ok, and run grub-install sda and grub-install sdb again, and then try again to remove sda, now i get that the system reboot when charging grub, so waht happening? to reference the 2 disk are tested and smart mark like ok without problems. I put sda ok, and boot ok, but why i cant boot from sdb? thks and sorry about my english. bye
Yes falko, i do that, but anyway the system reboot when load grub. I also build the raid again doing this: Code: mdadm --manage /dev/md0 --fail /dev/sdb1 mdadm --manage /dev/md1 --fail /dev/sdb5 mdadm --manage /dev/md0 --remove /dev/sdb1 mdadm --manage /dev/md1 --remove /dev/sdb5 shutdown -h now sfdisk -d /dev/sda | sfdisk --force /dev/sdb mdadm --zero-superblock /dev/sdb1 mdadm --zero-superblock /dev/sdb5 mdadm -a /dev/md0 /dev/sdb1 mdadm -a /dev/md1 /dev/sdb5 grub-install /dev/sda grub-install /dev/sdb Then reboot, all ok, so remove again sda, put sdb in sda place, and get the same, the system reboot loading grub, but if i insert sda its boot ok, also try sda in sdb place and boot ok. Any other idea? thks
Falko thanks for post here, iam using ubuntu 10.04.2 server, and the files: /etc/fstab Code: # /etc/fstab: static file system information. # # Use 'blkid -o value -s UUID' to print the universally unique identifier # for a device; this may be used with UUID= as a more robust way to name # devices that works even if disks are added and removed. See fstab(5). # # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc nodev,noexec,nosuid 0 0 /dev/mapper/mysql-root / ext4 errors=remount-ro 0 1 # /boot was on /dev/sda1 during installation #UUID=8f67c746-fcb9-4735-a3c3-deb113204ae7 /boot ext2 defaults 0 2 /dev/md0 /boot ext2 defaults 0 2 /dev/mapper/mysql-swap_1 none swap sw 0 0 /boot/grub/grub.cfg Code: # # DO NOT EDIT THIS FILE # # It is automatically generated by /usr/sbin/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 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 ${boot_once} ]; then save_env recordfail; fi; fi } insmod raid insmod mdraid insmod lvm insmod ext2 set root='(mysql-root)' search --no-floppy --fs-uuid --set 20055c28-f960-44bc-80d4-1a0bd714ab5a if loadfont /usr/share/grub/unicode.pf2 ; then set gfxmode=640x480 insmod gfxterm insmod vbe if terminal_output gfxterm ; then true ; else # For backward compatibility with versions of terminal.mod that don't # understand terminal_output terminal gfxterm fi fi insmod raid insmod mdraid insmod ext2 set root='(md0)' search --no-floppy --fs-uuid --set 6348ca9c-7027-4d2b-9452-05745c0f2acb set locale_dir=($root)/grub/locale set lang=es insmod gettext 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 ### END /etc/grub.d/05_debian_theme ### ### BEGIN /etc/grub.d/10_linux ### menuentry 'Ubuntu, con Linux 2.6.32-32-generic-pae' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod raid insmod mdraid insmod ext2 set root='(md0)' search --no-floppy --fs-uuid --set 6348ca9c-7027-4d2b-9452-05745c0f2acb linux /vmlinuz-2.6.32-32-generic-pae root=/dev/mapper/mysql-root ro quiet initrd /initrd.img-2.6.32-32-generic-pae } menuentry 'Ubuntu, con Linux 2.6.32-32-generic-pae (modo recuperación)' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod raid insmod mdraid insmod ext2 set root='(md0)' search --no-floppy --fs-uuid --set 6348ca9c-7027-4d2b-9452-05745c0f2acb echo 'Cargando Linux 2.6.32-32-generic-pae ...' linux /vmlinuz-2.6.32-32-generic-pae root=/dev/mapper/mysql-root ro single echo 'Cargando el disco RAM inicial...' initrd /initrd.img-2.6.32-32-generic-pae } menuentry 'Ubuntu, con Linux 2.6.32-28-generic-pae' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod raid insmod mdraid insmod ext2 set root='(md0)' search --no-floppy --fs-uuid --set 6348ca9c-7027-4d2b-9452-05745c0f2acb linux /vmlinuz-2.6.32-28-generic-pae root=/dev/mapper/mysql-root ro quiet initrd /initrd.img-2.6.32-28-generic-pae } menuentry 'Ubuntu, con Linux 2.6.32-28-generic-pae (modo recuperación)' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod raid insmod mdraid insmod ext2 set root='(md0)' search --no-floppy --fs-uuid --set 6348ca9c-7027-4d2b-9452-05745c0f2acb echo 'Cargando Linux 2.6.32-28-generic-pae ...' linux /vmlinuz-2.6.32-28-generic-pae root=/dev/mapper/mysql-root ro single echo 'Cargando el disco RAM inicial...' initrd /initrd.img-2.6.32-28-generic-pae } ### END /etc/grub.d/10_linux ### ### BEGIN /etc/grub.d/20_memtest86+ ### menuentry "Memory test (memtest86+)" { insmod raid insmod mdraid insmod ext2 set root='(md0)' search --no-floppy --fs-uuid --set 6348ca9c-7027-4d2b-9452-05745c0f2acb linux16 /memtest86+.bin } menuentry "Memory test (memtest86+, serial console 115200)" { insmod raid insmod mdraid insmod ext2 set root='(md0)' search --no-floppy --fs-uuid --set 6348ca9c-7027-4d2b-9452-05745c0f2acb linux16 /memtest86+.bin console=ttyS0,115200n8 } ### END /etc/grub.d/20_memtest86+ ### ### BEGIN /etc/grub.d/30_os-prober ### if [ ${timeout} != -1 ]; then if keystatus; then if keystatus --shift; then set timeout=-1 else set timeout=0 fi else if sleep --interruptible 3 ; then set timeout=0 fi fi fi ### 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 ### i will wait for help. tks.
OK, i forget to say that wheni rebuild the raid again this happen: Code: mdadm --manage /dev/md0 --fail /dev/sdb1 mdadm --manage /dev/md1 --fail /dev/sdb5 mdadm --manage /dev/md0 --remove /dev/sdb1 mdadm --manage /dev/md1 --remove /dev/sdb5 I run : Code: cat /proc/mdstat and i get: Code: root@mysql:~# cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : active raid1 sda1[0] 248768 blocks [2/1] [U_] md1 : active raid1 sda5[0] 79792064 blocks [2/1] [U_] unused devices: <none> root@mysql:~# So, i reboot : Code: shutdown -h now And i do again: Code: cat /proc/mdstat , and i get : Code: root@mysql:~# cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : active raid1 sda1[0] sdb1[0] 248768 blocks [2/1] [UU] md1 : active raid1 sda5[0] 79792064 blocks [2/1] [U_] unused devices: <none> root@mysql:~# Why md0 is again build? I removed again : Code: mdadm --manage /dev/md0 --fail /dev/sdb1 mdadm --manage /dev/md0 --remove /dev/sdb1 Now the sdb1 is removed, but i dont reboot because md0 will be rebuild again, so follow with this: Code: sfdisk -d /dev/sda | sfdisk --force /dev/sdb mdadm --zero-superblock /dev/sdb1 mdadm --zero-superblock /dev/sdb5 mdadm -a /dev/md0 /dev/sdb1 mdadm -a /dev/md1 /dev/sdb5 grub-install /dev/sda grub-install /dev/sdb This can explain the booting problem? or give you a kind of track? thks
Is there a reference to 8f67c746-fcb9-4735-a3c3-deb113204ae7 anywhere in a file in the /boot/grub/ or /etc/grub.d/ directories?
Nop, nothing, only in /etc/fstab this line: Code: #UUID=8f67c746-fcb9-4735-a3c3-deb113204ae7 /boot ext2 defaults 0 2 but, is commented, so doesnt used.
i change the 2 disks, and i have installed ubuntu server 10.04.2, and build the raid with the installer, and all work ok. The 2 disks can boot. In other hand this is a new system and i need to use the other system. Any way this server is a mysql server, so i have installed only installesd apache, mysql, phpmyadmin, openssh, and nothing more. So i can backup the mysql bases, and used in the new system, but i have a problem that maybe the correct will be open other thread, and i will, but the problem is the following: The old system have the same packages installed, and at boot its consume 120 mb of ram, and the new one 230mb of ram, why i can happend? thks
