kernel panic-not syncing: VFS: unable to mount root fs on unknown block(1,0)

AlexPDX · Jun 19, 2019, 6:14 AM

Hello…im geting this error with FOG 1.5.6
im using IBM Blade Server with virtualisation…all of the other machines seam to work fine with no problems

george1421 · Jun 19, 2019, 1:21 PM

Hmm… I find it interesting that its trying to load a non-fog init (virtual hard drive). Why is it referencing fog/images/init.gz Secondly, the init for fog should be .xz compressed and not .gz compressed. Off the top of my head, I don’t know of the FOG kernel will be able to expand a .gz compressed file since natively it only understand .xz.

But the error basically says the kernel could not connect to the virtual hard drive.

Tom Elliott · Jun 19, 2019, 4:47 PM

It can open .gz, but you’re right. By default, we use XZ compression for the init’s.

Even more odd is the fog/images/init.gz being the configuration path from the old 0.32 versions (and earlier) when it referenced the init from /tftpboot/fog/images/init.gz

Did you follow configuration from a very old tutorial?

AlexPDX · Jun 20, 2019, 5:21 AM

I did not expose myself correctly … my bad : ) … I use the IBM Blate server for virtual machines … each one has its own separate work … and I have taken resources from the server to create a Fog Server. I followed the instalation steps exactly … and this error occurred while trying to capture a workstation with windows 10 MBR

george1421 · Jun 20, 2019, 9:57 AM

@AlexPDX said in kernel panic-not syncing: VFS: unable to mount root fs on unknown block(1,0):

I followed the instalation steps exactly

I find this hard to understand. If you followed the installation steps exactly then it would not try to load fog/image/init.gz. Where did you get the instructions to install fog 1.5.6?

Can you go to this url with a web browser and then post the output here. http://192.168.192.111/fog/service/ipxe/boot.php?mac=00:00:00:00:00:00 and also http://192.168.192.111/fog/service/ipxe/boot.php?mac=f8:b1:56:d9:b8:ab

AlexPDX · Jun 20, 2019, 5:25 AM

@george1421 :

#!ipxe
set fog-ip 192.168.192.111
set fog-webroot fog
set boot-url http://${fog-ip}/${fog-webroot}
cpuid --ext 29 && set arch x86_64 || set arch i386
goto get_console
:console_set
colour --rgb 0x00567a 1 ||
colour --rgb 0x00567a 2 ||
colour --rgb 0x00567a 4 ||
cpair --foreground 7 --background 2 2 ||
goto MENU
:alt_console
cpair --background 0 1 ||
cpair --background 1 2 ||
goto MENU
:get_console
console --picture http://192.168.192.111/fog/service/ipxe/bg.png --left 100 --right 80 && goto console_set || goto alt_console
:MENU
menu
colour --rgb 0xff0000 0 ||
cpair --foreground 1 1 ||
cpair --foreground 0 3 ||
cpair --foreground 4 4 ||
item --gap Host is NOT registered!
item --gap -- -------------------------------------
item fog.local Boot from hard disk
item fog.memtest Run Memtest86+
item fog.reginput Perform Full Host Registration and Inventory
item fog.reg Quick Registration and Inventory
item fog.deployimage Deploy Image
item fog.multijoin Join Multicast Session
item fog.sysinfo Client System Information (Compatibility)
item FOG_1.5.5 FOG Server
choose --default FOG 1.5.5 --timeout 3000 target && goto ${target}
:fog.local
chain -ar ${boot-url}/service/ipxe/grub.exe --config-file="rootnoverify (hd0);chainloader +1" || goto MENU
:fog.memtest
kernel memdisk initrd=memtest.bin iso raw
initrd memtest.bin
boot || goto MENU
:fog.reginput
kernel bzImage32 loglevel=4 initrd=init_32.xz root=/dev/ram0 rw ramdisk_size=127000 web=http://192.168.192.111/fog/ consoleblank=0 rootfstype=ext4 storage=192.168.192.111:/images/ storageip=192.168.192.111 loglevel=4 mode=manreg
imgfetch init_32.xz
boot || goto MENU
:fog.reg
kernel bzImage32 loglevel=4 initrd=init_32.xz root=/dev/ram0 rw ramdisk_size=127000 web=http://192.168.192.111/fog/ consoleblank=0 rootfstype=ext4 storage=192.168.192.111:/images/ storageip=192.168.192.111 loglevel=4 mode=autoreg
imgfetch init_32.xz
boot || goto MENU
:fog.deployimage
login
params
param mac0 ${net0/mac}
param arch ${arch}
param username ${username}
param password ${password}
param qihost 1
isset ${net1/mac} && param mac1 ${net1/mac} || goto bootme
isset ${net2/mac} && param mac2 ${net2/mac} || goto bootme
param sysuuid ${uuid}
:fog.multijoin
login
params
param mac0 ${net0/mac}
param arch ${arch}
param username ${username}
param password ${password}
param sessionJoin 1
isset ${net1/mac} && param mac1 ${net1/mac} || goto bootme
isset ${net2/mac} && param mac2 ${net2/mac} || goto bootme
param sysuuid ${uuid}
:fog.sysinfo
kernel bzImage32 loglevel=4 initrd=init_32.xz root=/dev/ram0 rw ramdisk_size=127000 web=http://192.168.192.111/fog/ consoleblank=0 rootfstype=ext4 storage=192.168.192.111:/images/ storageip=192.168.192.111 loglevel=4 mode=sysinfo
imgfetch init_32.xz
boot || goto MENU
:FOG_1.5.5
kernel bzImage32 loglevel=4 initrd=init_32.xz root=/dev/ram0 rw ramdisk_size=127000 web=http://192.168.192.111/fog/ consoleblank=0 rootfstype=ext4 storage=192.168.192.111:/images/ storageip=192.168.192.111 loglevel=4
imgfetch init_32.xz
boot || goto MENU
:bootme
chain -ar http://192.168.192.111/fog/service/ipxe/boot.php##params ||
goto MENU
autoboot

and …

#!ipxe
set fog-ip 192.168.192.111
set fog-webroot fog
set boot-url http://${fog-ip}/${fog-webroot}
cpuid --ext 29 && set arch x86_64 || set arch i386
goto get_console
:console_set
colour --rgb 0x00567a 1 ||
colour --rgb 0x00567a 2 ||
colour --rgb 0x00567a 4 ||
cpair --foreground 7 --background 2 2 ||
goto MENU
:alt_console
cpair --background 0 1 ||
cpair --background 1 2 ||
goto MENU
:get_console
console --picture http://192.168.192.111/fog/service/ipxe/bg.png --left 100 --right 80 && goto console_set || goto alt_console
:MENU
menu
colour --rgb 0x00567a 0 ||
cpair --foreground 1 1 ||
cpair --foreground 0 3 ||
cpair --foreground 4 4 ||
item --gap Host is registered as Windows10-CLEAN!
item --gap -- -------------------------------------
item fog.local Boot from hard disk
item fog.memtest Run Memtest86+
item fog.keyreg Update Product Key
item fog.deployimage Deploy Image
item fog.multijoin Join Multicast Session
item fog.quickdel Quick Host Deletion
item fog.sysinfo Client System Information (Compatibility)
item FOG_1.5.5 FOG Server
choose --default FOG 1.5.5 --timeout 3000 target && goto ${target}
:fog.local
exit || goto MENU
:fog.memtest
kernel memdisk initrd=memtest.bin iso raw
initrd memtest.bin
boot || goto MENU
:fog.keyreg
login
params
param mac0 ${net0/mac}
param arch ${arch}
param username ${username}
param password ${password}
param keyreg 1
isset ${net1/mac} && param mac1 ${net1/mac} || goto bootme
isset ${net2/mac} && param mac2 ${net2/mac} || goto bootme
param sysuuid ${uuid}
:fog.deployimage
login
params
param mac0 ${net0/mac}
param arch ${arch}
param username ${username}
param password ${password}
param qihost 1
isset ${net1/mac} && param mac1 ${net1/mac} || goto bootme
isset ${net2/mac} && param mac2 ${net2/mac} || goto bootme
param sysuuid ${uuid}
:fog.multijoin
login
params
param mac0 ${net0/mac}
param arch ${arch}
param username ${username}
param password ${password}
param sessionJoin 1
isset ${net1/mac} && param mac1 ${net1/mac} || goto bootme
isset ${net2/mac} && param mac2 ${net2/mac} || goto bootme
param sysuuid ${uuid}
:fog.quickdel
login
params
param mac0 ${net0/mac}
param arch ${arch}
param username ${username}
param password ${password}
param delhost 1
isset ${net1/mac} && param mac1 ${net1/mac} || goto bootme
isset ${net2/mac} && param mac2 ${net2/mac} || goto bootme
param sysuuid ${uuid}
:fog.sysinfo
kernel bzImage32 loglevel=4 initrd=init_32.xz root=/dev/ram0 rw ramdisk_size=127000 web=http://192.168.192.111/fog/ consoleblank=0 rootfstype=ext4 storage=192.168.192.111:/images/ storageip=192.168.192.111 loglevel=4 mode=sysinfo
imgfetch init_32.xz
boot || goto MENU
:FOG_1.5.5
kernel bzImage32 loglevel=4 initrd=init_32.xz root=/dev/ram0 rw ramdisk_size=127000 web=http://192.168.192.111/fog/ consoleblank=0 rootfstype=ext4 storage=192.168.192.111:/images/ storageip=192.168.192.111 loglevel=4
imgfetch init_32.xz
boot || goto MENU
:bootme
chain -ar http://192.168.192.111/fog/service/ipxe/boot.php##params ||
goto MENU
autoboot

[Mod note] Fixed post for readability -geo

george1421 · Jun 20, 2019, 5:52 AM

@AlexPDX OK, can you show me the host definition for the system Windows10-CLEAN?

Also I have to ask you why you have this item in the FOG iPXE menu?

item FOG_1.5.5 FOG Server

kernel bzImage loglevel=4 initrd=init_32.xz root=/dev/ram0 rw ramdisk_size=127000 web=http://192.168.192.111/fog/ consoleblank=0 rootfstype=ext4 storage=192.168.192.111:/images/ storageip=192.168.192.111 loglevel=4
imgfetch init.xz
boot || goto MENU

This is set as default but it doesn’t “do” anything. I know it boots the fog kernel, but its not a standard menu item.

Back to what you posted there is nothing in the iPXE menu to call fog/images/init.gz that I can see.

Lets start with the host definition screen shot, then if that doesn’t give us a clue, I’ll have you schedule a capture or deploy (whatever you were doing to that computer when it threw that error), but don’t pxe boot the target computer. I’ll want you to run that second link. As long as the computer mac address is the same it should give us a little better picture. When a task is running, that call to boot.php will be very short.

AlexPDX · Jun 21, 2019, 5:42 AM

It’s done …I have completely installed the virtual machine but also the fog server with the latest version, at the moment it seems that everything works just fine, I managed to capture the image of windows 10 with MBR, also did a full inventory of the work station , i deployed it on another workstation … momentarily I’m with kernel 4.19.36 … I’m thinking to update it at 4.19.48 … but I doubt it will not come up with the same problem … however i will try anyway
10x for the help ! …specialy @george1421 but also @Tom-Elliott ( apparently the problem started from the location where my images are saved…bad cfg )

kernel panic-not syncing: VFS: unable to mount root fs on unknown block(1,0)

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