Which file contains the file system to be automatically mounted during boot?

Which file contains the file system to be automatically mounted during boot?

vfstab file

How do I mount a filesystem in Linux?

Mounting ISO Files

  1. Start by creating the mount point, it can be any location you want: sudo mkdir /media/iso.
  2. Mount the ISO file to the mount point by typing the following command: sudo mount /path/to/image.iso /media/iso -o loop. Don’t forget to replace /path/to/image. iso with the path to your ISO file.

Which Linux filesystem format does not include any type of journaling?


What is mounting in OS?

Mounting is a process by which the operating system makes files and directories on a storage device (such as hard drive, CD-ROM, or network share) available for users to access via the computer’s file system.

Which material can be used for mounting?

Phenolic- Phenolic is a common thermosetting resin used in hot mounting compounds. Thermoset phenolics form hard temperature resistance mounting compounds. Polyester – Acrylic resin systems are available for hot mounting and cold mounting. Acrylics are typically low cost systems.

What is mounting in metallography?

The purpose of mounting is to protect fragile or coated materials during preparation and to obtain perfect edge retention. Mounting is used when the protection of layers is imperative, and also it enables a safer and more convenient handling of small, sharp, or irregularly shaped specimens, for example. About.

What are the different types of mounting?

Types of Mounting Methods

  • Plate Type. Holes for mounting a caster are provided on the mounting base.
  • Screw-in Type. Since a thread is provided on the stem, mount a caster by screwing the caster on the stem.
  • Insertion Type(Rubber Pipe Type)
  • Angle Type.
  • Dedicated wrenches for mounting casters.

What is mounting in histopathology?

In histology or a pathology laboratory, mounting is the last procedure in the series that ends with a permanent histological preparation on the table, well after the tissue processing and staining.

Why metallographic samples are sometimes mounted in plastic?

Originally Answered: Why are metallographic samples sometimes mounted in plastic ? Metallographic samples need to be well levelled and polished. But one very often cannot cut the sample material into that shape or the sample is just too small. So it is easier to cast the sample inside plastic.

What is the effect of removing the Mount while it is still hot?

What is the effect of removing the mount while it is still hot? Explanation: After the heating coil is removed, the cooling fins are inserted which cool the mount below 75oC in about 7 minutes. Ejecting the mold while it is hot or allowing it to cool slowly causes the mount to turn opaque.

Why must metallographic samples be washed and carefully dried?

The sample MUST be washed thoroughly before proceeding from one grinding stage to the next ! ! ! Failure to follow this basic rule will result in transferring abrasive particles between stages and will cause time-consuming, frustrating problems in removing unwanted scratches.

Why should we use different colors for mounting the specimen?

Compression mounting is a very useful mounting technique which can provide better specimen edge retention compared to castable mounting resins. Compression mounting resins are available in different colors and with various fillers to improve hardness or conductivity.

What is the pressure condition used to make the Mount?

Hot mounting takes place under pressure in a mounting press, where the specimen is placed in a cylinder together with the appropriate mounting resin. A temperature of up to 200°C, and a pressure of up to 50kN are then applied during the embedding of the specimen.

What are the important steps metallographic sample preparation?

The basic steps for proper metallographic specimen preparation include: documentation, sectioning and cutting, mounting, planar grinding, rough polishing, final polishing, etching, microscopic analysis, and hardness testing.

What is the purpose of etching process?

Etching is used to reveal the microstructure of the metal through selective chemical attack. It also removes the thin, highly deformed layer introduced during grinding and polishing. In alloys with more than one phase, etching creates contrast between different regions through differences in topography or reflectivity.

What is meant by etching process?

Etching is the process of using strong acid to cut into the unprotected parts of a metal surface to create a design in intaglio (image is created by cutting, carving or engraving into a flat surface) in the metal. The paper picks up the ink from the etched lines, making a print.

What is the purpose of metallography?

Metallography is the study of materials microstructure. Analysis of a materials microstructure helps us determining if the material has been processed correctly and is therefore a critical step for determining product reliability and for determining why a material failed.

What is the difference between Metallography and metallurgy?

Metallurgy is referred to as various process involved in the extraction of metals such as ore concentration,extracting metals according to their reactivity and refining of metal. Metallography is the study of physical structure and components of metal typically using microscopy.

Why Etchants are different for different metals?

Etchants selectively corrode some of those elements, which show up as darker regions. This is possible because differences in the composition, structure, or phase of a metal alter the relative rates of corrosion when exposed to an etchant.

Why do grain boundaries appear dark?

3.6. 2 Grain Structure and Topology. Revealing the grain structure, however, requires that the grain boundaries be delineated by etching with a suitable chemical solution that preferentially attacks them; light impinging at grain boundaries is then scattered, making them appear dark.

What kind of defect is a grain boundary?

A grain boundary is the interface between two grains, or crystallites, in a polycrystalline material. Grain boundaries are 2D defects in the crystal structure, and tend to decrease the electrical and thermal conductivity of the material.

Why do grain boundaries have high energy?

The mismatch of the orientation of neighboring grains leads to a less efficient atomic packing within the grain boundary. Hence the atoms in the boundary have a less ordered structure and a slightly higher internal energy.

Why do grain boundaries increase diffusion?

Due to the high concentration of defects in the grain contact area resulting from their crystallographic misalignment, diffusive transfer along the grain boundaries occurs much faster than in their bulk, where the defect concentration is much smaller (bulk diffusion), but slower than in the boundary between the solid …

How does grain size affect diffusion?

This happens because the relative diffusion coefficient is lower than in Case 2, so grain boundaries affect the overall diffusion process, where the concentration gradient is smoother.

What is boundary diffusion in social work?

Boundary diffusion in social work is the spreading of a limitation or information about that limitation from a social worker to a client.

What is surface migration?

Surface diffusion is a general process involving the motion of adatoms, molecules, and atomic clusters (adparticles) at solid material surfaces. The process can generally be thought of in terms of particles jumping between adjacent adsorption sites on a surface, as in figure 1.

What happens if a social worker violates the code of ethics?

Any NASW member who violates the Code (or is alleged to have violated the Code) may be subject to the NASW’s professional review process. The professional review process could include mediation between the complainant and social work-respondent, or an adjudication to be heard by an NASW panel.

Are dual relationships illegal?

Dual relationships that impair professional judgment, exploit, and harm clients are illegal, unethical, considered unprofessional conduct, and may be grounds for revocation of a licensure or registration3.

Why are dual relationships bad?

Like a dual relationship that is sexual, a nonprofessional dual relationship has the potential to blur the boundaries between a counselor and a client, create a conflict of interest, enhance the potential for exploitation and abuse of power, and/or cause the counselor and client to have different expectations of …