grub+freebsd

[Shantanoo Mahajan]

+++ serge [freebsd] [28-01-06 15:53 +0300]:
| Hi
| 
| Help to install please grub-0.95 on FreeBSD-5.4.
| At attempt to install grub the following message is deduced: Error 29: Disk write error
| 
| 
| Part              Mount           Size              Newfs
| -----             -----           -----             -----
| ad0s1            <none>           30003MB           DOS
| ad0s2a           /                256MB             UFS2         Y
| ad0s2b           SWAP             1006MB            SWAP
| ad0s2d           /var             256MB             UFS2+S       Y
| ad0s2e           /tmp             256MB             UFS2+S       Y
| ad0s2f           /usr             6383MB            UFS2+S       Y
| 
| 
| offset     Size        End        Name      PType    Desc      Sutype
| ------     ----        ---        ----      -----    ----      ------
| 0          63          62         -         12       unused    0
| 63         61447617    61447679   ad0s1     7        fat       12
| 61447680   16707600    78155279   ad0s2     165      freebsd   165
| 78155280   10080       78165359   -         12       unused    0
| 
| 
| # grub
| grub> root (hd0,1,a)
| File system type is ufs2, partition type 0xa5
| grub> kernel /boot/loader
| [FreeBSD-a .out, loadaddr=0x20000,text=0x1000, data=0x32000, bss=0x0,
| entry=0x200000]
| grub>boot
| #
| 
| And another:
| 
| #grub-install /dev/hd0
| grub> root (hd0,1,a)
| File system type is ufs2, partition type 0xa5
| grub>setup --stage2=/boot/grub/stage2 --prefix=/boot/grub (hd0)
| Checking if "/boot/grub/stage1"exists.....yes
| Checking if "/boot/grub/stage2"exists.....yes
| Checking if "/boot/grub/ufs2_stage1_5"..exists.....yes
| Running "embed /boot/grub/ufs2_stage1_5 (hd0)...failed (this is not fatal)
| Running "embed /boot/grub/ufs2_stage1_5 (hd0,1,a)...failed (this is not fatal)
| Running "install --stage2=/boot/grub/stage2 /boot/grub/stage1 (hd0)
| /boot/grub/stage2 p /boot/grub.lst"...failed
| 
| ***Error 29: Disk write error
| 
| grub>quite
| #
| 
| In what here a problem, prompt please.

IIRC, you need to change sysctl setting of 'kern.geom.debugflags' from
0 to 16.

Shantanoo
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