LTSP

Grub boot to two disk

blkid ID dysku

dpkg-reconfigure grub-pc

lub

  1. grub-install /dev/sda
  2. grub-install /dev/sdb
# /etc/default/grubGRUB_DEFAULT=4
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT=""
GRUB_CMDLINE_LINUX=""# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"# Uncomment to disable graphical terminal (grub-pc only)
GRUB_TERMINAL=console                                      ########## Tuuuuuuuuuuu...# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_LINUX_RECOVERY="true"# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

i update-grub

root@ltsp-labunie:~# cat /proc/sys/dev/raid/speed_limit_m
speed_limit_max  speed_limit_min  
root@ltsp-labunie:~# cat /proc/sys/dev/raid/speed_limit_max  200000 root@ltsp-labunie:~# echo "20000" > /proc/sys/dev/raid/speed_limit_max  root@ltsp-labunie:~# cat /proc/sys/dev/raid/speed_limit_max  20000 root@ltsp-labunie:~# sysctl dev.raid.speed_limit_max dev.raid.speed_limit_max = 20000