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LPI 201-450 Exam - Topic 3 Question 106 Discussion

Which of the following command sequences can be used to extract files contained in a initramfs file (/boot/initramfs) which is used by the kernel at boot time?
C) cp /boot/initramfs /tmp/initramfs.gz; gunzip /tmp/initramfs.gz; mount /tmp/initramfs /mnt/ -o loop -t initramfs
A) cp /boot/initramfs /tmp/initramfs.gz; gzip -c /tmp/initramfs.gz; mkdir /tmp/initramfs.dir ; cd /tmp/initramfs.dir ; cpio -i < /tmp/initramfs
B) cp /boot/initramfs /tmp/initramfs.gz; gunzip /tmp/initramfs.gz; mkdir /tmp/initramfs.dir ; cd /tmp/initramfs.dir ; cpio -i < /tmp/initramfs
D) cp /boot/initramfs /tmp/initramfs.gz; gunzip /tmp/initramfs.gz; mkdir /tmp/initramfs.dir ; cd /tmp/initramfs.dir ; cpio -e /tmp/initramfs
E) cp /boot/initramfs /tmp/initramfs.gz; gunzip /tmp/initramfs.gz; mount /tmp/initramfs /mnt/ -o loop -t initrd

LPI 201-450 Exam - Topic 3 Question 106 Discussion

Actual exam question for LPI's 201-450 exam
Question #: 106
Topic #: 3
[All 201-450 Questions]

Which of the following command sequences can be used to extract files contained in a initramfs file (/boot/initramfs) which is used by the kernel at boot time?

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Suggested Answer: C

by Roselle at Jan 25, 2025, 08:04 AM

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Benton
7 months ago
D is interesting, but I don't think cpio -e is right.
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Delmy
7 months ago
Definitely not C, that won't work.
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Rory
7 months ago
Wait, can you really mount initramfs like that?
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Wynell
8 months ago
I think A looks good too, but not sure.
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Desmond
8 months ago
Option B is the correct one!
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Cordelia
8 months ago
I vaguely recall that we should not mount the initramfs directly. I think options C and E might be incorrect because of that.
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Karima
8 months ago
I’m a bit confused about the difference between using cpio with -i and -e. I hope I remember which one is correct for extracting files.
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Sina
8 months ago
I think option B looks familiar because it mentions gunzip and cpio, which we practiced in class. I feel like that’s the right approach.
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Leonora
9 months ago
I remember that to extract files from an initramfs, we usually need to decompress it first, but I'm not sure if we should use gzip or gunzip in this context.
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Antonio
9 months ago
I'm a bit unsure about the mount command options here. Do we really need to mount the initramfs file, or can we just extract the contents directly? I'll have to double-check the details on that.
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Roosevelt
9 months ago
Okay, let me think this through step-by-step. First, copy the file, then gunzip it, then use cpio to extract the contents. I think option B looks like the right sequence to me.
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Lenna
9 months ago
Ah, I've seen this type of question before. The key is to use the cpio command to extract the files from the initramfs. I'm pretty confident I can get this one right.
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Margart
9 months ago
Hmm, I'm a bit confused by all the different steps here. I'm not sure which one is the right approach. Maybe I should review my notes on working with initramfs files before attempting this.
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Werner
9 months ago
This looks like a tricky question, but I think I have a good strategy. I'll start by copying the initramfs file to a temporary location and gunzipping it. Then I'll try extracting the contents using cpio.
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Mitsue
1 year ago
I heard the kernel likes to keep its initramfs files on a need-to-know basis. Guess we're all on a need-to-know basis today!
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Dell
1 year ago
D) cp /boot/initramfs /tmp/initramfs.gz; gunzip /tmp/initramfs.gz; mkdir /tmp/initramfs.dir ; cd /tmp/initramfs.dir ; cpio -e /tmp/initramfs
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Ivory
1 year ago
B) cp /boot/initramfs /tmp/initramfs.gz; gunzip /tmp/initramfs.gz; mkdir /tmp/initramfs.dir ; cd /tmp/initramfs.dir ; cpio -i < /tmp/initramfs
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Catherin
1 year ago
A) cp /boot/initramfs /tmp/initramfs.gz; gzip -c /tmp/initramfs.gz; mkdir /tmp/initramfs.dir ; cd /tmp/initramfs.dir ; cpio -i < /tmp/initramfs
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Joesph
1 year ago
Wait, why are we extracting an initramfs file? Isn't that like, the kernel's private business? I hope this isn't going to be on the test!
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Roslyn
1 year ago
Hold up, is this a trick question? I bet the answer is Option E, because 'initrd' is the old-school name for initramfs, right?
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Cherrie
1 year ago
I've used Option C before to mount the initramfs image directly. It's a bit more straightforward than the cpio approach.
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Elise
1 year ago
I've never tried Option C, I usually stick with Option A for extracting initramfs files.
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Julio
1 year ago
I usually go with Option B, but I might try Option C next time.
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Zoila
1 year ago
I prefer Option C as well, it's easier to just mount the initramfs image.
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Emogene
1 year ago
I've never tried Option C before, but it sounds like a more straightforward method to extract the files.
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Virgina
1 year ago
I usually go with Option B, but I might try Option C next time for a simpler approach.
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Jules
1 year ago
I prefer Option C as well, it's easier to mount the initramfs image directly.
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Teddy
1 year ago
Option B looks the most comprehensive to me. Extracting the files from the initramfs image using cpio is the way to go.
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Jesusita
1 year ago
Let's go with option B then, it seems like the most comprehensive choice.
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Angella
1 year ago
Yes, I think Option B is the best one. It covers all the necessary steps for extracting the files from the initramfs image.
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Felix
1 year ago
Option B is definitely the way to go for extracting files from initramfs.
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Shaniqua
1 year ago
I agree, using cpio to extract the files seems like the right approach.
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Charisse
1 year ago
I agree, Option B seems like the correct choice. Using cpio to extract the files is the right approach.
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Rosio
1 year ago
I think option B is the correct one.
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Brigette
1 year ago
But option A involves using cpio to extract files from the initramfs file, which is the correct tool for this task.
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Sharen
1 year ago
I disagree, I believe the correct answer is B.
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Brigette
1 year ago
I think the correct answer is A.
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