I'm having a problem with my Kubuntu. It's almost a fresh install (I've only installed the typical apps/codecs only).
Sometimes it boots fast, and sometimes it boots slow. It's almost random. So, I installed bootchart and now I bring you the logs of a fast boot and a slow boot. I don't know why dmseg says the boot time is almost the same (~52 seconds).
The following quote is the sad, sad story of a thumb drive with the partition table nuked, as told by a friend of mine:
Quote:
Data was recovered from an XP system by booting with a BartPC CD
and copying onto a USB thumb drive. Nothing unusual.
System was rebooted into the XP install CD.
I have a CentOS 5 system with KDE3 where three different people need to use thumb drives. It's a multi-user system, meaning that a thumb drive mounted by user A also needs to be rw-accessible ... [by majun]
Greetings!
After reading and trying to fix 'slow write speed on Lubuntu 12.04, on external drives, finally found a fix.
On the Thunar File manager go to the edit menu and then preferences, disable the "Move deleted files to 'trash bin'" option.
Now all drives work at proper speed.
I have a problem: sending small files (16MB) works with at most ~ 2MB/s speed. While on larger files, 16MB/s is easily achievable.
When I was checking details, it looks that speed of transfers starts very low - ~ 200KB/s, and then increases, but 16MB is too small to reach big enough speed.
I read about it, and it looks like it is "Slow Start" technique.
I am trying to setup an older PC (Yes it can boot to USB) with Ubuntu and have only the /boot partition on a USB Thumb drive. Not running the operation system from the USB but to have the OS installed on the internal HDD and only the /boot on the USB Thumb drive, I do not want to run the operating system from the USB Thumb drive.
What i would like to do is.
I have a number of drives that are acting very weird.
There are 7x Seagate Barricuda 2TB 5900 RPM hard drives and 1 WD 750 GB Black.
They are currently in a SAS-to-SATA expander, connected to an LSI raid card.
They used to each get at least 100 MB/s read/write speeds. For the last few weeks the read/write speed has dropped to 10 MB/s or less.
I'm running CentOS 6.3 inside of VirtualBox and am having trouble seeing my USB 2.0 thumb drive.
In VirtualBox I go to Devices, USB drives and can capture my connected thumb drive. I've created a mount point in CentOS but fdisk doesn't show the drive (I'm expecting to see SDC) there.
What am I missing?
I downloade Ubuntu to a thumb drive and can boot up without a problem on the thumb drive.
I have a dell XPS that got hit with a virus and it was too painful to remove it. I wiped the hard drive clean using the XP install disc (NTSF). When I tried to install and run windows it said that the drive was not available. I gave up at this point and got out my thumb drive and booted up in Ubuntu.