Miles Fidelman wrote:
Miles Fidelman wrote:
Just did a new install of Wheezy on a server, but having problems
trying to boot.
Basic setup:
- PXEboot into installer
- a pretty standard install
- had to fiddle a little at the end to get the MBR into the right
places (RAIDed disks, USB stick mounts as /dev/sda)
- now it boots, but ends up at a grub prompt on the (remote) console
- attempt a boot and get the error "no kernel loaded"
Diagnostics
- restarted the installer in rescue mode, executed a shell in the
newly built root directory
- mounted everything
- looked in /boot and all I could find is /boot/grub - no vmlinuz, no
config, ... nothing
Note that this is my first Wheezy install, and I understand the
installer and boot process have changed - but can't figure out how.
Ok.. learning a bit about grub2, from the grub prompt:
- discover that all the files are in (md/0) #raided boot device
- try to set the paths manually and get some weird results
---------
grub> ls (md/0)/
lost+found/ System.map-3.2.0-4-rt-amd64 config-3.2.0-4-rt-amd64 grub/
vmlinuz-3
.2.0-4-rt-amd64 initrd.img-3.2.0-4-rt-amd64
grub> ls (md/0)/grub/grub.cfg
grub.cfg
grub> set prefix=(md/0)/boot/grub
grub> set root=(md/2)
grub> boot
error: no loaded kernel.
grub> linux (md/0)/vmlinuz-3.2.0-4-rt-amd64
error: file not found.
grub> initrd (md/0)/initrd.img-3.2.0-4-rt-amd64
error: file not found.
grub> ls -l (md/0)/
DIR 20130803023241 lost+found/
2115221 20130609193606 System.map-3.2.0-4-rt-amd64
128550 20130609193606 config-3.2.0-4-rt-amd64
DIR 20130803042226 grub/
2885152 20130609192519 vmlinuz-3.2.0-4-rt-amd64
3673059 20130803034148 initrd.img-3.2.0-4-rt-amd64
---------
after typing:
set prefix=(md/0)/boot/grub
set root=(md/2)
insmod normal
normal
up comes the boot menu, and after the timeout, everything loads just fine
now I just need to figure out
- what's going on here?
- how to configure things so everything loads automatically
Can someone explain what's happening here?
Thanks very much,
Miles Fidelman
--
In theory, there is no difference between theory and practice.
In practice, there is. .... Yogi Berra
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