what are bootloaders in solaris booting? bootblk, ufsboot
Answers were Sorted based on User's Feedback
Answer / deepunix
Hi Sekher,
we are using Solaris OS on two different Hardware Platforms
1. x86 (Intel Compatible Hardware)
2. x64 (SPARC Hardware (Scalable Processor Architecture), Which is developed SUN (Stanford University Network) team).
for x86 machines we are using GRUB (Grand Unified Boot Loader) Boot loader program. for x64 machines we are using ufsboot program.
Basically we are using GRUB boot loader in Linux OS.
About Bootblk you need to understand whole booting process of Solaris.
1. VTOC (Volume Table of Contents): Contain Partition Table . Stores in 1st Sector of the Disk
2. Bootblk (Bootstrap Program): 1-15
3. Primary Super Block: 16-31
Contain:
a. The number of data blocks
b. The number of cylinder groups
c. The size of a data block and fragment
d. A description of the hardware, derived from the label
e. The name of the mount point
f. File system state flag: clean, stable, active, logging, or unknown
4. Backup Super blocks: 32Sector
5. Cylinder Group.
Is This Answer Correct ? | 8 Yes | 2 No |
Answer / satish varma
GRUB bootloader is for intel platform and UFS bootloader is for spark system .
in booting process, at POST phase, the system will load the primary program called BootBlk
Is This Answer Correct ? | 6 Yes | 2 No |
what are the daemons running In NIS? how to do u create NIS users and update Maps?
how to know which version of solaris is installed? uname –a /etc/release
How to reset root password if root password is gone?
Tell me how many types of file system?
How to bring New LUN under veritas , create f/s on it ?
If / (root) file system is full,How to increase root file system under Solaris volume manager (SVM)?
Explain the difference between sc> and lom>?
What are the comman user problems?
how to add your own run control script in server?
Explain crashdumps & core files?
What is the file holds default values get by user when new user is created ? /usr/sadm/defadduser
How to check nfs version configured?