How to handle NO_PUBKEY WARNING

2007.10.01 23:36 | Posted by bar4mi
Sometimes I had NO_PUBKEY Warnings when I tried to update the apt lists.
It likes below.
W: GPG error: http://www.debian-multimedia.org unstable Release: 다음 서명들은 공개키가 없기 때문에 인증할 수 없습니다: NO_PUBKEY 07DC563D1F41B907
W: apt-get update를 실행하면 이 문제를 바로잡을 수도 있습니다.

We can fix these problems as we add the public key to the apt key lists.
First, we have installed the 'gnupg' package.
# apt-get install gnupg

Next, download the public key from the pgp keyserver(wwwkeys.eu.pgp.net).
# gpg --keyserver wwwkeys.eu.pgp.net --recv-keys 07DC563D1F41B907
gpg: requesting key 1F41B907 from hkp server wwwkeys.eu.pgp.net
gpg: key 1F41B907: "Christian Marillat " not changed
gpg: Total number processed: 1
gpg: unchanged: 1

Last, export the download key as ASCII and add it to the apt key lists using 'apt-key' command.
# gpg --armor --export 07DC563D1F41B907 | apt-key add -
OK

After these works, the warning will disappear.
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Mount windows file systems(NTFS, FAT)

2007.09.12 00:56 | Posted by bar4mi
It was very important to me to mount windows file system(NTFS, FAT).
Because my important data were saved on past file system and I should use USB storage to move data from my linux desktop to my notebook.(It's OS is MS Windows Vista.)
The past file system's filetype was NTFS and USB storage was FAT.
There were big problems to read and to write files on NTFS and to display Korean on these file systems.
Several years ago, we couldn't wirte files on NTFS. But now I find some solutions for it.
I can use 'ntfs-3g' to write files on NTFS.

It was a issue to display Korean becase my linux desktop's main locale use UTF-8(ko_KR.UTF-8). I could solved this issue by using mount options.
On Debian linux, I just installed it like below.
apt-get install ntfs-3g

After install, configure /etc/fstab to mount NTFS and FAT. The locale option was added to display Korean in ntfs-3g.(locale=ko_KR.UTF-8). If you use another language, just change the vaule form 'ko_KR.UTF-8' to your locale. And for USB storage use 'iocharset' option to display Korean currectly.
사용자 삽입 이미지

the my configuration of /etc/fstab


Now I can access(read/write) files on NTFS and FAT and show Korean.
사용자 삽입 이미지

The NTFS partition mounted successfully


PS. If you find incorrect spelling and English structure in this document, please let me know my mistakes.
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Start Linux Life

2007.09.11 14:29 | Posted by bar4mi
Normally I use MS Windows systems.
Recently I wanted to use an different operation system.
MS Windows system is very nice for me.
But there are some issues.
First, there are so many malicious tries to obtain my windows system.
For examples, malicious activeX which is excuted itself, vulnerable IE which allowed to lost my operation system's control, so on.
Second, I am forgetting my linux operating skill becaue I don't use them so often.
Last, it doesn't matter to me to use linux system on my desktop, except I can't use an internet banking.
Last Saturday, I installed debian linux on my desktop instead of MS Windows XP.
Five years ago, I felt that linux system was difficult to use as an desktop system.
Recent linux system was very wonderful and satisfied me on my desktop.

I will start to write my linux system's stories here from now.

PS. I will write these stories in English to improve my English skill.

사용자 삽입 이미지

my linux desktop box(debian)

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