How to recover x86 Solaris 10 u10 boot record/grub menu overwritten by Debian 9?


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Operating Systems Solaris How to recover x86 Solaris 10 u10 boot record/grub menu overwritten by Debian 9?
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How to recover x86 Solaris 10 u10 boot record/grub menu overwritten by Debian 9?

I installed x86 Solaris 10 update 10 after Windows XP, later I removed xp and installed Debian 9 stretch on the same partition but, Debian couldn't find any other os so it deleted Solaris 10 grub or did something like that I couldn't got.

I thought I would be able to recover the lost record by editing Debian's grub but I failed due to its complicated grub so I reinstalled Solaris grub using installgrub and installgrub was successful but Debian still boots and I can't find Solaris on Debian grub menu neither Solaris boots with its grub though I see the Solaris partition through fdisk from Debian as Debian fdisk shows /dev/sda1 is linux partition and /dev/sda2 is solaris partition.

Now I'm planning to install Slackware with the hope that its lilo would detect Solaris but, I'm not sure.

How can I recover Solaris grub?
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installgrub(1M)                                                                                                                    installgrub(1M)

NAME
installgrub - install GRUB in a disk partition or a floppy SYNOPSIS
/sbin/installgrub [-fm] stage1 stage2 raw-device The installgrub command is an -only program. GRUB stands for GRand Unified Bootloader. installgrub installs GRUB stage 1 and stage 2 files on the boot area of a disk partition. If you specify the -m option, installgrub installs the stage 1 file on the master boot sector of the disk. The installgrub command accepts the following options: -f Suppresses interaction when overwriting the master boot sector. -m Installs GRUB stage1 on the master boot sector interactively. The installgrub command accepts the following operands: stage1 The name of the GRUB stage 1 file. stage2 The name of the GRUB stage 2 file. raw-device The name of the device onto which GRUB code is to be installed. It must be a character device that is readable and writable. For disk devices, specify the slice where the GRUB menu file is located. (For Solaris it is the root slice.) For a floppy disk, it is /dev/rdiskette. Example 1: Installing GRUB on a Hard Disk Slice The following command installs GRUB on a system where the root slice is c0d0s0: example# /sbin/installgrub /boot/grub/stage1 /boot/grub/stage2 /dev/rdsk/c0d0s0 Example 2: Installing GRUB on a Floppy The following command installs GRUB on a formatted floppy: example# mount -F pcfs /dev/diskette /mnt # mkdir -p /mnt/boot/grub # cp /boot/grub/* /mnt/boot/grub # umount /mnt # cd /boot/grub # /sbin/installgrub stage1 stage2 /dev/rdiskette /boot/grub Directory where GRUB files reside. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ boot(1M), fdisk(1M), fmthard(1M), kernel(1M), attributes(5) Installing GRUB on the master boot sector (-m option) overrides any boot manager currently installed on the machine. The system will always boot the GRUB in the Solaris partition regardless of which fdisk partition is active. 24 May 2005 installgrub(1M)

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