Bootloader aur Kernal Kya Hota Hai? : Dosto! Hum daily life me bohot se devices ka use karte hai jaise humara smartphone(android, iphone) yaa PC(Windows, Linux, MacOs)etc.. en sabhi devices me operating system kam aata hai, har operating system me bootloader kam me aata hai aur hum es blog me specially android operating system ke Bootloader ke baare me jaanenge aur sath hi aapko kernal ki bhi process batayi jayegi to chaliye dekhte hai Bootloader aur Kernal kya hota hai.
Agar hum baate kare android operating system ki to bootloader aur kernal operating system ko start up karne ke kaam aate hai.
Bootloader aur Kernal Kya Hota Hai?
Simple Definition –
Bootloader ek chhota sa program hota hai jo smartphone ko start hote samay anya programs aur services ko memory me load karke smartphone ko start karne me kaam aata hai.
Android operating system ek linux based operating system hai, jise agar hum chahe to modify bhi kar sakte hai, aur pura operating system ka har ek system app ko hum change bhi kar sakte hai sath hi boot process bhi hum kisi bhi android device ka change kar sakte hai jiske liye aapka phone root hona jaruri hota hai.
Simple Definition –
Kernal ek tarah ka software program hai jo Software aur Hardware ke bich pool ka kaam karta hai.
Bootloader humare phone ke android operating system ko ON karne ki process me ahem(main) bhumika nibhata hai Bootloader ek tarah ki image property hai jo kernal ko power karne ke kaam aati hai Bootloader yah bhi chceck karta hai ki Boot aur Recovery sahi se kaam kar rahe hai ya nahi aur agar dono me kuchh problem hoti hai to ye hume Error ya Warning message dekar batane ka kaam karta hai jo hume display par dikhayi deta hai. chaliye bootloader ka boot operation se hum ye samajhne ki koshish karte hai ki bootloader kaise kaam karta hai.
YEH BHI PADHE : Magisk Kya Hai?
Bootloader ke Boot Operation
- Momory ko initialize aur Load karta hai.
- Boot Flow ke liye device ko check karta hai.
- Boot partition ko verify karta hai, jisme
boot,dtbo,init_boot, aurrecoveryko Boot Flow mein verify karta hai. - Jab Updates aati hai to yah tay karta hai ki boot kaise karna hai aur kounsa boot esme use hone wala hai.;
- Yah tay karta hai ki Recovery Mode me boot karna hai ya normal boot.
- Boot Images ko Load karta hai jaise,
boot.img,vendor_boot.img,init_boot.imgaur anya boot images, aur yehi boot images ke sath kernal aur ramdisk images bhi hoti hai.
Ab aap yah samajh chuke honge ke bootloader aur kernal kya hota hai aur humne yah bhi jana ki bootloader kaise kaam karta hai. Toh ab hum kernal ke bare me thoda jaan lete hai ki Kernal ki kya command lines hoti hai kernal kaise kam karta hai.
Kernal ke Command Lines
Kernal ki command lines kuchh es tarah se hai.
- Yah Bootloader se di jane wali Static aur Dynamic prarameters ko nirdharit karta hai
- Device tree:
chosen/bootargsnode se defconfig: fromCONFIG_CMDLINEboot.img: from the command line (offsets aur sized dekhne ke liye aap es link se adhik jankari le sakte hai.system/core/mkbootimg/bootimg.h
Agar aapne apne android smartphone ko root karne ki koshish ki hogi ya padhha hoga ki android phone ko root kaise kare to aapne waha dekha hoga ki hume phone ko root karne se pehle bootloader ko unlock karna hota hai aur kuchh devices me root hone ke baad kernal ko bhi change karne ka option hota hai yaa modify bhi kiya ja sakta hai. to aapko yah jaan lena jaruri hai ki android ek aisa operating system hai jo puri tarah se modify kiya ja sakta hai aur esi karan se esme security issues bhi jyada hote hai.
Dosto! ab aap yah samajh chuke honge ki kaise kisi android smartphone me bootloader aur kernal kaam karte hai aur humne aap bohot simple tarike se simple language me samjhane ki koshish ki hai ki bootloader aur kernal kya hota hai?
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