/usr/bin/apt-key: 57: cannot create /dev/null: Permission denied ν•΄κ²° πŸ”

2021-08-24Β·1λΆ„ 읽기·

/usr/bin/apt-key: 57: cannot create /dev/null: Permission denied ν•΄κ²° πŸ”

/usr/bin/apt-key: 57: cannot create /dev/null: Permission denied ν•΄κ²° πŸ” β–  apt-get update λͺ…λ Ήμ‹œ μ—λŸ¬ λ°œμƒ # /usr/bin/apt-key: 57: cannot create /dev/null: Permission denied μ—λŸ¬κ°€ λ°œμƒλ˜λŠ” /dev/null μ‹œλ„ # rm -f /dev/n

/usr/bin/apt-key: 57: cannot create /dev/null: Permission denied ν•΄κ²° πŸ”

/dev/null은 λ¦¬λˆ…μŠ€μ—μ„œ 좜λ ₯을 버릴 λ•Œ μ“°λŠ” 특수 파일인데, 이게 μ—†κ±°λ‚˜ κΆŒν•œμ΄ 잘λͺ» μ„€μ •λ˜μ–΄ 있으면 apt-get update 같은 νŒ¨ν‚€μ§€ 관리 λͺ…λ Ήμ–΄κ°€ 쀑간에 μ‹€νŒ¨ν•œλ‹€. 주둜 도컀 μ»¨ν…Œμ΄λ„ˆλ‚˜ chroot ν™˜κ²½μ—μ„œ 이 파일이 λ‚ μ•„κ°€ μžˆκ±°λ‚˜ κΆŒν•œμ΄ κΌ¬μ—¬ μžˆμ„ λ•Œ λ°œμƒν•œλ‹€.

β–  apt-get update λͺ…λ Ήμ‹œ μ—λŸ¬ λ°œμƒ

code
# /usr/bin/apt-key: 57: cannot create /dev/null: Permission denied

μ²˜μŒμ—” /dev/null 자체λ₯Ό μ§€μš°κ³  λ‹€μ‹œ apt-keyλ₯Ό λ¦¬μŠ€νŠΈν•˜λŠ” 방법을 μ‹œλ„ν–ˆλ‹€.

  • /dev/null μ‚­μ œ ν›„ μž¬μ‹œλ„
code
# rm -f /dev/null; apt-key list

μ—¬μ „νžˆ μ—λŸ¬μ½”λ“œκ°€ λ°œμƒν•˜μ˜€λ‹€. 이 방법은 /dev/null을 μž¬μƒμ„±ν•˜μ§€ μ•ŠκΈ° λ•Œλ¬Έμ— κ·Όλ³Έ 해결이 μ•ˆ λœλ‹€.

/dev/null을 μ •μƒμ μœΌλ‘œ μž¬μƒμ„±ν•˜λ €λ©΄ mknod -m 666 /dev/null c 1 3 λͺ…λ Ήμ–΄λ₯Ό μ‚¬μš©ν•΄μ•Ό ν•œλ‹€. 단, 도컀 ν™˜κ²½μ—μ„œλŠ” ν˜ΈμŠ€νŠΈμ—μ„œ μ»¨ν…Œμ΄λ„ˆλ₯Ό μž¬μ‹œμž‘ν•˜λŠ” 편이 λΉ λ₯΄λ‹€.

  • μž¬λΆ€νŒ… ν›„ μ—…λ°μ΄νŠΈ μ‹œλ„

μ‹œμŠ€ν…œ μž¬λΆ€νŒ… μ‹œ 컀널이 /dev μž₯치 νŒŒμΌμ„ λ‹€μ‹œ λ§ˆμš΄νŠΈν•˜λ©΄μ„œ /dev/null도 정상 μƒνƒœλ‘œ λ³΅κ΅¬λœλ‹€.

μ—…λ°μ΄νŠΈκ°€ μ •μƒμ μœΌλ‘œ μ§„ν–‰λ˜μ—ˆλ‹€. κΈ‰ν•˜λ©΄ μž¬λΆ€νŒ…μ΄ 제일 ν™•μ‹€ν•œ 해결책이긴 ν•˜λ‹€.

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