bootovani s grubem a ZFS BE

[Miroslav Lachman]

Snazim se ted upgradovat jeden prehistoricky stroj, na kterem puvodne 
bylo PC-BSD. Po upgrade by tam melo byt ciste FreeBSD 11.3 amd64 s 
oficialnima balikama.
Pro upgrade jsem vytvoril novy Boot Environment (coz je klon puvodniho 
root filesystemu) a v nem provedl upgrade OS i balicku.
PC-BSD jako bootmanager pouziva grub2.

Po rebootu si v menu grubu vyberu ten novy BE, system zacne bootovat a 
pak to zacne vyhazovat chyby u pokusu o loadovani modulu:

KLD ipfw.ko: depends on kernel - not available or version mismatch
linker_load_file: Unsupported file type

Podobnych chyb se tam vyskytuje vice a system bootovani nedokonci.

Vim, co takova chyba znamena za normalnich okolnosti - ze mam jinou 
verzi kernelu, nez moduly. Zkratka out of sync. Jenze kdyz nabootuju 
predchozi funkcni verzi, primountuju si tento Boot Environment a 
zkontroluju, co je v jeho /boot/kernel, tak je tam kernel i moduly te 
nove verze 11.3-p7 (overoval jsem i checksumy).

Znovu jsem zkusil nabootovat do noveho BE, ale jako single user, coz jde 
(nenacitaji se dalsi moduly). Znovu se podivam do /boot/kernel a opet 
vse v poradku - novy kernel, nove moduly.
(rikal jsem si, jestli se mi tam tim grubem nemichaji pres sebe 
mountovani dvou verzi rootu z ruznych BE, ale nevypada to tak)

Kontroloval jsem i kenv vfs.root.mountfrom a i tam je cesta ke spravnemu 
(novemu) BE.

Grub je pro me tak trochu magie, tak nevim, k cemu by tam jeste mohlo 
dojit, ze se nejakym zpusobem pomichaji ruzne verze kernelu a modulu.

Nebo co dalsiho tam jeste muze byt za problem, co zpusoby vyse popsanou 
chybu?


Asi nejlepsim resenim bude, zrusit grub a pouzit standardni FreeBSD boot 
manager
gpart bootcode -p /boot/gptzfsboot -i 1 ada1


Mirek


Ukazka jedne polozky z /boot/grub/grub.cfg pro ten novy BE

submenu "PC-BSD (sysUpgrade_11_3_20200328_001110) - 2020-03-28 00:11" {
   menuentry "Normal Bootup" {
     insmod zfs
     search --no-floppy -s -l tank2
     kfreebsd /ROOT/sysUpgrade_11_3_20200328_001110/@/boot/kernel/kernel
     kfreebsd_loadenv 
/ROOT/sysUpgrade_11_3_20200328_001110@/boot/device.hints
     kfreebsd_module 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/zfs/zpool.cache 
type=/boot/zfs/zpool.cache
     set 
kFreeBSD.vfs.root.mountfrom=zfs:tank2/ROOT/sysUpgrade_11_3_20200328_001110
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/modules/nvidia.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/kernel/drm.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/kernel/drm2.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/kernel/iicbus.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/modules/vboxdrv.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/kernel/crypto.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/kernel/aesni.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/kernel/geom_eli.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/kernel/zfs.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/modules/nvidia-modeset.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/kernel/opensolaris.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/kernel/tmpfs.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/kernel/linux.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/kernel/linux_common.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/kernel/geom_journal.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/kernel/geom_mirror.ko
     kfreebsd_module_elf 
/ROOT/sysUpgrade_11_3_20200328_001110/@/boot/kernel/ums.ko
     set kFreeBSD.bootfile="kernel"
     set kFreeBSD.kernel="kernel"
     set kFreeBSD.kernel_options=""
     set kFreeBSD.kernelname="/boot/kernel/kernel"
     set kFreeBSD.module_path="/boot/kernel;/boot/modules"
     set kFreeBSD.vfs.zfs.arc_max="1024M"
     set kFreeBSD.kern.ipc.shmseg="1024"
     set kFreeBSD.kern.ipc.shmmni="1024"
     set kFreeBSD.kern.maxproc="10000"
     set kFreeBSD.legal.intel_ipw.license_ack="1"
     set kFreeBSD.legal.intel_iwi.license_ack="1"
     set kFreeBSD.legal.realtek.license_ack="1"
     set kFreeBSD.hint.acpi_throttle.0.disabled="1"
     set kFreeBSD.machdep.disable_mtrrs="1"
     set kFreeBSD.kern.geom.eli.visible_passphrase="2"
     set kFreeBSD.kern.cam.scsi_delay="500"
     set kFreeBSD.hw.memtest.tests="0"
     set kFreeBSD.kern.vty="vt"
     set kFreeBSD.kern.geom.label.gptid.enable="0"
     set kFreeBSD.kern.geom.label.disk_ident.enable="0"
     set kFreeBSD.kern.geom.label.ufsid.enable="0"
     set kFreeBSD.hw.pci.do_power_nodriver="3"
     set kFreeBSD.net.inet.ip.fw.default_to_accept="1"
     set kFreeBSD.net.inet.ip.fw.one_pass="0"
     set kFreeBSD.net.graph.maxdata="65536"
     set kFreeBSD.grub.platform="$grub_platform"
     set kFreeBSD.kern.geom.eli.passphrase="$pass"
   }