ISO file size correct?
I tried to download Ubuntu 18.04 Desktop 64 bit, and got 3 ISO images named:
ubuntu-18.04.1-desktop-amd64.iso
ubuntu-18.04.1-desktop-amd64 (1).iso
ubuntu-18.04.1-desktop-amd64 (2).iso
All with file size 2.0 GB (1,953,349,632 bytes).
Questions - Does this seem correct, and do I just use one?
Thank you,
J2B
software-installation
edited Nov 27 '18 at 10:56
pa4080
13.5k52562
asked Nov 26 '18 at 22:47
j2b
62
add a comment |
I tried to download Ubuntu 18.04 Desktop 64 bit, and got 3 ISO images named:
ubuntu-18.04.1-desktop-amd64.iso
ubuntu-18.04.1-desktop-amd64 (1).iso
ubuntu-18.04.1-desktop-amd64 (2).iso
All with file size 2.0 GB (1,953,349,632 bytes).
Questions - Does this seem correct, and do I just use one?
Thank you,
J2B
software-installation
edited Nov 27 '18 at 10:56
pa4080
13.5k52562
asked Nov 26 '18 at 22:47
j2b
62
See: tutorials.ubuntu.com/tutorial/tutorial-how-to-verify-ubuntu#0
– Terrance
Nov 26 '18 at 22:57
2
You only use one. It looks like you downloaded it 3 times.
– Terrance
Nov 26 '18 at 23:00
Not sure how that happened, but you must be correct since the file sizes are exactly the same.
– j2b
Nov 27 '18 at 23:34
add a comment |
I tried to download Ubuntu 18.04 Desktop 64 bit, and got 3 ISO images named:
ubuntu-18.04.1-desktop-amd64.iso
ubuntu-18.04.1-desktop-amd64 (1).iso
ubuntu-18.04.1-desktop-amd64 (2).iso
All with file size 2.0 GB (1,953,349,632 bytes).
Questions - Does this seem correct, and do I just use one?
Thank you,
J2B
software-installation
edited Nov 27 '18 at 10:56
pa4080
13.5k52562
asked Nov 26 '18 at 22:47
j2b
62
I tried to download Ubuntu 18.04 Desktop 64 bit, and got 3 ISO images named:
ubuntu-18.04.1-desktop-amd64.iso
ubuntu-18.04.1-desktop-amd64 (1).iso
ubuntu-18.04.1-desktop-amd64 (2).iso
All with file size 2.0 GB (1,953,349,632 bytes).
Questions - Does this seem correct, and do I just use one?
Thank you,
J2B
software-installation
software-installation
edited Nov 27 '18 at 10:56
pa4080
13.5k52562
asked Nov 26 '18 at 22:47
j2b
62
edited Nov 27 '18 at 10:56
pa4080
13.5k52562
asked Nov 26 '18 at 22:47
j2b
62
edited Nov 27 '18 at 10:56
pa4080
13.5k52562
edited Nov 27 '18 at 10:56
pa4080
13.5k52562
edited Nov 27 '18 at 10:56
pa4080
13.5k52562
13.5k52562
asked Nov 26 '18 at 22:47
j2b
62
asked Nov 26 '18 at 22:47
j2b
62
asked Nov 26 '18 at 22:47
j2b
62
62
See: tutorials.ubuntu.com/tutorial/tutorial-how-to-verify-ubuntu#0
– Terrance
Nov 26 '18 at 22:57
2
You only use one. It looks like you downloaded it 3 times.
– Terrance
Nov 26 '18 at 23:00
Not sure how that happened, but you must be correct since the file sizes are exactly the same.
– j2b
Nov 27 '18 at 23:34
add a comment |
See: tutorials.ubuntu.com/tutorial/tutorial-how-to-verify-ubuntu#0
– Terrance
Nov 26 '18 at 22:57
2
You only use one. It looks like you downloaded it 3 times.
– Terrance
Nov 26 '18 at 23:00
Not sure how that happened, but you must be correct since the file sizes are exactly the same.
– j2b
Nov 27 '18 at 23:34
See: tutorials.ubuntu.com/tutorial/tutorial-how-to-verify-ubuntu#0
– Terrance
Nov 26 '18 at 22:57
See: tutorials.ubuntu.com/tutorial/tutorial-how-to-verify-ubuntu#0
– Terrance
Nov 26 '18 at 22:57
2
2
You only use one. It looks like you downloaded it 3 times.
– Terrance
Nov 26 '18 at 23:00
You only use one. It looks like you downloaded it 3 times.
– Terrance
Nov 26 '18 at 23:00
Not sure how that happened, but you must be correct since the file sizes are exactly the same.
– j2b
Nov 27 '18 at 23:34
Not sure how that happened, but you must be correct since the file sizes are exactly the same.
– j2b
Nov 27 '18 at 23:34
add a comment |
2 Answers
2
active
oldest
votes
This is a very bad idea to determine whether the ISO is correct is or not by merely looking at the file size. Since your file size is 1,953,349,632 bytes which is approximately 1.8 GB can be legit or not. The proper way to check whether the downloaded file is correct or not is using Checksum.
The original file checksum can be obtained from Ubuntu Releases under corresponding release folder and the checksum of the downloaded file (here ISO) can be calculated using below commands on Ubuntu/Linux and whether the file is legit or not can be determined by comparing the same.
For MD5SUMS:
md5sum ISOName
For SHA1SUMS:
sha1sum ISOName
For SHA256SUMS:
sha256sum ISOName
edited Nov 26 '18 at 23:43
pa4080
13.5k52562
answered Nov 26 '18 at 23:01
Kulfy
3,60341139
add a comment |
This seems to be correct. If you want to be 100% sure you can check the md5sum of the file. Open a new terminal and execute:
md5sum ubuntu-18.04.1-desktop-amd64.iso
Then compare the received value with the value provided in the file MD5SUMS from the download page of Ubuntu 18.04.1 LTS (Bionic Beaver).
Download that file and then use the md5sum command with -compare option to do this check:
wget http://releases.ubuntu.com/18.04.1/MD5SUMS
md5sum -c MD5SUMS
md5sumwill generate a bunch of warnings. Don't worry: the OK message will be buried somewhere within it!
Example (with suppressed error messages):
$ ls -l | grep 'ubuntu.*iso|MD5SUMS'
-rw-rw-r-- 1 spas spas 138 юли 26 19:56 MD5SUMS
-rw-rw-r-- 1 spas spas 1953349632 ное 27 01:01 ubuntu-18.04.1-desktop-amd64.iso
$ md5sum -c MD5SUMS 2>&1 | grep 'OK'
ubuntu-18.04.1-desktop-amd64.iso: OK
answered Nov 26 '18 at 23:06
pa4080
13.5k52562
Thanks @Kulfy, I've updated the answer. In the downloaded fileMD5SUMShave more than one md5sums and the command will output some error messages, by using of2>/dev/nullthese error messages will be suppressed.
– pa4080
Nov 27 '18 at 0:03
+1 for suppression ;)
– Kulfy
Nov 27 '18 at 0:15
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
This is a very bad idea to determine whether the ISO is correct is or not by merely looking at the file size. Since your file size is 1,953,349,632 bytes which is approximately 1.8 GB can be legit or not. The proper way to check whether the downloaded file is correct or not is using Checksum.
The original file checksum can be obtained from Ubuntu Releases under corresponding release folder and the checksum of the downloaded file (here ISO) can be calculated using below commands on Ubuntu/Linux and whether the file is legit or not can be determined by comparing the same.
For MD5SUMS:
md5sum ISOName
For SHA1SUMS:
sha1sum ISOName
For SHA256SUMS:
sha256sum ISOName
edited Nov 26 '18 at 23:43
pa4080
13.5k52562
answered Nov 26 '18 at 23:01
Kulfy
3,60341139
add a comment |
This is a very bad idea to determine whether the ISO is correct is or not by merely looking at the file size. Since your file size is 1,953,349,632 bytes which is approximately 1.8 GB can be legit or not. The proper way to check whether the downloaded file is correct or not is using Checksum.
The original file checksum can be obtained from Ubuntu Releases under corresponding release folder and the checksum of the downloaded file (here ISO) can be calculated using below commands on Ubuntu/Linux and whether the file is legit or not can be determined by comparing the same.
For MD5SUMS:
md5sum ISOName
For SHA1SUMS:
sha1sum ISOName
For SHA256SUMS:
sha256sum ISOName
edited Nov 26 '18 at 23:43
pa4080
13.5k52562
answered Nov 26 '18 at 23:01
Kulfy
3,60341139
add a comment |
This is a very bad idea to determine whether the ISO is correct is or not by merely looking at the file size. Since your file size is 1,953,349,632 bytes which is approximately 1.8 GB can be legit or not. The proper way to check whether the downloaded file is correct or not is using Checksum.
The original file checksum can be obtained from Ubuntu Releases under corresponding release folder and the checksum of the downloaded file (here ISO) can be calculated using below commands on Ubuntu/Linux and whether the file is legit or not can be determined by comparing the same.
For MD5SUMS:
md5sum ISOName
For SHA1SUMS:
sha1sum ISOName
For SHA256SUMS:
sha256sum ISOName
edited Nov 26 '18 at 23:43
pa4080
13.5k52562
answered Nov 26 '18 at 23:01
Kulfy
3,60341139
This is a very bad idea to determine whether the ISO is correct is or not by merely looking at the file size. Since your file size is 1,953,349,632 bytes which is approximately 1.8 GB can be legit or not. The proper way to check whether the downloaded file is correct or not is using Checksum.
The original file checksum can be obtained from Ubuntu Releases under corresponding release folder and the checksum of the downloaded file (here ISO) can be calculated using below commands on Ubuntu/Linux and whether the file is legit or not can be determined by comparing the same.
For MD5SUMS:
md5sum ISOName
For SHA1SUMS:
sha1sum ISOName
For SHA256SUMS:
sha256sum ISOName
edited Nov 26 '18 at 23:43
pa4080
13.5k52562
answered Nov 26 '18 at 23:01
Kulfy
3,60341139
edited Nov 26 '18 at 23:43
pa4080
13.5k52562
edited Nov 26 '18 at 23:43
pa4080
13.5k52562
edited Nov 26 '18 at 23:43
pa4080
13.5k52562
13.5k52562
answered Nov 26 '18 at 23:01
Kulfy
3,60341139
answered Nov 26 '18 at 23:01
Kulfy
3,60341139
answered Nov 26 '18 at 23:01
Kulfy
3,60341139
3,60341139
add a comment |
add a comment |
This seems to be correct. If you want to be 100% sure you can check the md5sum of the file. Open a new terminal and execute:
md5sum ubuntu-18.04.1-desktop-amd64.iso
Then compare the received value with the value provided in the file MD5SUMS from the download page of Ubuntu 18.04.1 LTS (Bionic Beaver).
Download that file and then use the md5sum command with -compare option to do this check:
wget http://releases.ubuntu.com/18.04.1/MD5SUMS
md5sum -c MD5SUMS
md5sumwill generate a bunch of warnings. Don't worry: the OK message will be buried somewhere within it!
Example (with suppressed error messages):
$ ls -l | grep 'ubuntu.*iso|MD5SUMS'
-rw-rw-r-- 1 spas spas 138 юли 26 19:56 MD5SUMS
-rw-rw-r-- 1 spas spas 1953349632 ное 27 01:01 ubuntu-18.04.1-desktop-amd64.iso
$ md5sum -c MD5SUMS 2>&1 | grep 'OK'
ubuntu-18.04.1-desktop-amd64.iso: OK
answered Nov 26 '18 at 23:06
pa4080
13.5k52562
Thanks @Kulfy, I've updated the answer. In the downloaded fileMD5SUMShave more than one md5sums and the command will output some error messages, by using of2>/dev/nullthese error messages will be suppressed.
– pa4080
Nov 27 '18 at 0:03
+1 for suppression ;)
– Kulfy
Nov 27 '18 at 0:15
add a comment |
This seems to be correct. If you want to be 100% sure you can check the md5sum of the file. Open a new terminal and execute:
md5sum ubuntu-18.04.1-desktop-amd64.iso
Then compare the received value with the value provided in the file MD5SUMS from the download page of Ubuntu 18.04.1 LTS (Bionic Beaver).
Download that file and then use the md5sum command with -compare option to do this check:
wget http://releases.ubuntu.com/18.04.1/MD5SUMS
md5sum -c MD5SUMS
md5sumwill generate a bunch of warnings. Don't worry: the OK message will be buried somewhere within it!
Example (with suppressed error messages):
$ ls -l | grep 'ubuntu.*iso|MD5SUMS'
-rw-rw-r-- 1 spas spas 138 юли 26 19:56 MD5SUMS
-rw-rw-r-- 1 spas spas 1953349632 ное 27 01:01 ubuntu-18.04.1-desktop-amd64.iso
$ md5sum -c MD5SUMS 2>&1 | grep 'OK'
ubuntu-18.04.1-desktop-amd64.iso: OK
answered Nov 26 '18 at 23:06
pa4080
13.5k52562
Thanks @Kulfy, I've updated the answer. In the downloaded fileMD5SUMShave more than one md5sums and the command will output some error messages, by using of2>/dev/nullthese error messages will be suppressed.
– pa4080
Nov 27 '18 at 0:03
+1 for suppression ;)
– Kulfy
Nov 27 '18 at 0:15
add a comment |
This seems to be correct. If you want to be 100% sure you can check the md5sum of the file. Open a new terminal and execute:
md5sum ubuntu-18.04.1-desktop-amd64.iso
Then compare the received value with the value provided in the file MD5SUMS from the download page of Ubuntu 18.04.1 LTS (Bionic Beaver).
Download that file and then use the md5sum command with -compare option to do this check:
wget http://releases.ubuntu.com/18.04.1/MD5SUMS
md5sum -c MD5SUMS
md5sumwill generate a bunch of warnings. Don't worry: the OK message will be buried somewhere within it!
Example (with suppressed error messages):
$ ls -l | grep 'ubuntu.*iso|MD5SUMS'
-rw-rw-r-- 1 spas spas 138 юли 26 19:56 MD5SUMS
-rw-rw-r-- 1 spas spas 1953349632 ное 27 01:01 ubuntu-18.04.1-desktop-amd64.iso
$ md5sum -c MD5SUMS 2>&1 | grep 'OK'
ubuntu-18.04.1-desktop-amd64.iso: OK
answered Nov 26 '18 at 23:06
pa4080
13.5k52562
This seems to be correct. If you want to be 100% sure you can check the md5sum of the file. Open a new terminal and execute:
md5sum ubuntu-18.04.1-desktop-amd64.iso
Then compare the received value with the value provided in the file MD5SUMS from the download page of Ubuntu 18.04.1 LTS (Bionic Beaver).
Download that file and then use the md5sum command with -compare option to do this check:
wget http://releases.ubuntu.com/18.04.1/MD5SUMS
md5sum -c MD5SUMS
md5sumwill generate a bunch of warnings. Don't worry: the OK message will be buried somewhere within it!
Example (with suppressed error messages):
$ ls -l | grep 'ubuntu.*iso|MD5SUMS'
-rw-rw-r-- 1 spas spas 138 юли 26 19:56 MD5SUMS
-rw-rw-r-- 1 spas spas 1953349632 ное 27 01:01 ubuntu-18.04.1-desktop-amd64.iso
$ md5sum -c MD5SUMS 2>&1 | grep 'OK'
ubuntu-18.04.1-desktop-amd64.iso: OK
answered Nov 26 '18 at 23:06
pa4080
13.5k52562
edited Nov 27 '18 at 0:13
answered Nov 26 '18 at 23:06
pa4080
13.5k52562
answered Nov 26 '18 at 23:06
pa4080
13.5k52562
answered Nov 26 '18 at 23:06
pa4080
13.5k52562
13.5k52562
Thanks @Kulfy, I've updated the answer. In the downloaded fileMD5SUMShave more than one md5sums and the command will output some error messages, by using of2>/dev/nullthese error messages will be suppressed.
– pa4080
Nov 27 '18 at 0:03
+1 for suppression ;)
– Kulfy
Nov 27 '18 at 0:15
add a comment |
Thanks @Kulfy, I've updated the answer. In the downloaded fileMD5SUMShave more than one md5sums and the command will output some error messages, by using of2>/dev/nullthese error messages will be suppressed.
– pa4080
Nov 27 '18 at 0:03
+1 for suppression ;)
– Kulfy
Nov 27 '18 at 0:15
Thanks @Kulfy, I've updated the answer. In the downloaded file
MD5SUMS have more than one md5sums and the command will output some error messages, by using of 2>/dev/null these error messages will be suppressed.– pa4080
Nov 27 '18 at 0:03
Thanks @Kulfy, I've updated the answer. In the downloaded file
MD5SUMS have more than one md5sums and the command will output some error messages, by using of 2>/dev/null these error messages will be suppressed.– pa4080
Nov 27 '18 at 0:03
+1 for suppression ;)
– Kulfy
Nov 27 '18 at 0:15
+1 for suppression ;)
– Kulfy
Nov 27 '18 at 0:15
add a comment |
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See: tutorials.ubuntu.com/tutorial/tutorial-how-to-verify-ubuntu#0
– Terrance
Nov 26 '18 at 22:57
2
You only use one. It looks like you downloaded it 3 times.
– Terrance
Nov 26 '18 at 23:00
Not sure how that happened, but you must be correct since the file sizes are exactly the same.
– j2b
Nov 27 '18 at 23:34