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seen Oct 26 at 20:49

Lucky those who have knowledge to help and assist others :)


Jan
18
comment How may I improve my boot / shutdown time?
@ Linuxios I kind of did that once, copying an image of my <2.5GB /root parition to a tmpfs partition in ram. After the initial lengthy 2.5GB data copy it runs quite quickly. Still as @ Linuxios says the linux caching kind of achieves similar speeds. This comment is just to say: It is not absolutely crazy to have a linux run in RAM. It is doable. when copying back the image before shutdown it can even become a persistent thing :)
Jan
18
comment How may I improve my boot / shutdown time?
It is very nice to see you have discovered this wait_for_root etc swap related issue and managed to bring your boot time down. @alci regarding you "quite big 8GB" I was wondering what you use your PC for so that it makes sense to you to use a swap after all? Do you even ever use the swap partition , hence some application of yours is using > 8GB ram? wow? elsewise you might have avoided swap troubles by not using it in the first place.
Jan
16
awarded  Nice Question
Jan
13
comment How may I improve my boot / shutdown time?
it is good you made progress with the shutdown. Have you had some luck with the boot process? is UDEV the culprit?
Jan
13
comment How may I improve my boot / shutdown time?
I know this is unrelated. But still I do not wanna miss suggesting to you to use suspend (to ram / to disk) as an alternative. From "off-state" to "running-state" this is less than 3 sec for my weaker system
Jan
10
comment Are ubuntu packages (deb-files) only md5sum secured?
I like the optimistic attitude. I was still amazed by the proof of concept afterall. thanks!
Jan
10
comment Are ubuntu packages (deb-files) only md5sum secured?
ok. But what would be the good way to refer to the current state of MD5 security now, if not "broken"? I can understand what you say and I thanks for pointing that out. I still wonder how to evaluate the current safety by MD5 etc.
Jan
10
comment Are ubuntu packages (deb-files) only md5sum secured?
I have gained some clearer insight. Where did you get all this information, which I have such a dificulty in finding? Do you have some docus/links you used? Also I appreciate the mentioning of the "downgrade-danger" you mentioned, so I do not yet understand how excatly this might be exploited. Great! thank you
Jan
10
accepted Are ubuntu packages (deb-files) only md5sum secured?
Jan
10
revised Are ubuntu packages (deb-files) only md5sum secured?
typo corrected + linked to another related question
Jan
10
comment Are ubuntu packages (deb-files) only md5sum secured?
The prepared PDf files have random data and are only 104kb with all this effort. Why would you say this is impossible then? There must be tons of files in deb packages being >200kb where it must be possible to do such a thing. I feel not so safe after having seen the proof of concept , that amazed and shocked me
Jan
10
comment Are ubuntu packages (deb-files) only md5sum secured?
thank you for the answer. I think it is a good reply, in the sense that it gives more light to the whole background :) Unfortunatelly "Stack...Ask Ubuntu" is sometimes hard with "strictly reply to the question only" and so its great you took courage to elaborate on the topic.
Jan
10
comment Are ubuntu packages (deb-files) only md5sum secured?
@chronitis thanks for the link there. Indeed the SHA-* hashes are mentioined there I still have to figure out how they appear in the packages (which I did not see yet) or the packages system.Do you know more? Well the indication is already a good step
Jan
10
revised Are ubuntu packages (deb-files) only md5sum secured?
Added a reference
Jan
10
asked Are ubuntu packages (deb-files) only md5sum secured?
Jan
10
comment Get the default Firefox profile directory from bash
you can du a firefox; sudo lsof | grep [username] | grep firefox | grep profile which would get a firefox instance running. lsof will show you the opened files; grep will filter you out the interesting parts of lsof. This will quickstart the info + needs some fine-tuning. What do you need the information for anyhow? Do you wanna put some stuff automatically in a firefox profile folder - why?
Jan
8
awarded  Revival
Jan
8
comment how to connect to wireless network through terminal
your answers helps -already- half the way. I think it would be great and maybe help further if you added some insights to use iwconfig ìwlist and wpa_supplicant, which are usedful/necessary. Especially when wanting to connect to a wireless router that uses some encryption. I assume the question asker would need more than just enabling the device at least the user wrote "connect wireless" in the question
Dec
29
comment How can I convert my live Ubuntu 12.04 installation into a bootable version for CD or USB?
I think rsync or dd are better ways to shift your working ubuntu aprox 4GB+ system to a USB-stick. I am unsure CLONEZILLA will bring you instand success. Indeed the few things to get linux/ubuntu are normaly (1) a parititon layout, (2) a partition for your system, (3) copy of the -already working- system via rsync, (4) a installed and configured grub to get it to boot. I will try to find some turorial to post here later.
Dec
28
comment How can I convert my live Ubuntu 12.04 installation into a bootable version for CD or USB?
just some quick thoughs. (1) why iso? they do not make booting easier, rather more difficult. (2) if you have already a 4GB working root filesystem. => create a fitting partition layout on the usb stick. use dd command to image the parition to the newly created one on the USB stick. Finally install grup on the MBR of the stick and edit the grub.cfg to meet your setup. (3) if you wanna swap on SSD, why not putting Ubuntu on that thing right away? USB-Stick are not really write-durable!