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Messages - utu

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16
The 'Integrity Check' is a little flawed for most Ubuntu 10.04-derivative
systems. Not much, but a little. The check goes through around 360 md5sums
and determines OK or Fail for each. What is happening is a proper md5sum
test for the files in the downloaded iso. If you've made a proper LiveUSB
and apply this 'proper md5sum' test, several files are quite likely to fail
since they were modified in the transformation of the iso into a working
system. I don't know for sure, but I suspect that only if the basic squash
file fails will there be any disruption of continuing to boot-up.

In my case, making a LiveUSB from a LiveCD iso, I usually modify the boot
menu to make it look more like a LiveUSB, not a mere Installer menu. Also,
with my Broadcom wifi, there are two other chances for things to get changed:
one is an initramfs operation for the default b43 driver install; another
is a second initramfs operation when I remove the b43 and replace it with
the new and better wl model 271 wifi driver replacement.

In my case, eight md5sums fail, 352 pass, including the squash file.
On close inspection each one of the eight files in question has a later
origination date than md5sum.txt used in the test. Evidence enough to
suspect the md5sum test is likely flawed itself.

If I weren't so lazy, I'd calculate some correct md5sums and replace the
impostors. As it is, I just thought you ought to be a little suspicious of
the Integrity test. It is a really good idea, just a trifle flawed in its
execution.

I can demonstrate these ideas using a small bash program, check.md5s, to show
for my LiveUSB, which works just fine, thanks:
Code: [Select]
Checking 360 lines in md5sum.txt:
 -- Please wait for squashfs test to complete --
./isolinux/isolinux.cfg: FAILED
./isolinux/txt.cfg: FAILED
./isolinux/vesamenu.c32: FAILED
./isolinux/menu.cfg: FAILED
./md5sum.txt: FAILED
./boot/grub/grub.cfg: FAILED
./boot/grub/loopback.cfg: FAILED
./casper/initrd.lz: FAILED
md5sum: WARNING: 8 computed checksums did NOT match
peppermint@peppermint ~ $

17
What are you running Peppermint on? / Re: Dell 1545 Laptop
« on: July 23, 2016, 12:54:41 pm »
I've always built my own machines
Me, too. But somewhere along the line, it got cheaper to buy the Dells, than the parts.
Nice meeting up with you.

18
What are you running Peppermint on? / Dell 1545 Laptop
« on: July 23, 2016, 09:59:17 am »
Greetings.

I'm really pleased with Peppermint 7, and flabbergasted that it's an example of
Systemd being in control. It boots-up as fast as any Sysv init I've used.

I'm not the usual Linux user. Not a ChromeBook nor an installed OS type.
I use LiveUSBs exclusively. Having added LibreOffice, a lot of xfce apps and
switched away from the default b43 Broadcom driver to a Version '271 of wl,
I now have a tidy and responsive new laptop Linux. Even my .bashrc tweaks work,
since NetworkManager's there and not some ersatz systemd replacement. 

We have 50 Mbps Verizon internet, and with wifi, that shows up as somewhere
between 20 and 40 Mbps at the laptop. Lots of wifi-using neighbors.

I usually use a Dell 1545 Win7 Inspiron with legacy boot, but I also have a
later model Dell Win8 which has both legacy and UEFI. Here's the inxi for the 1545:

Code: [Select]
peppermint@peppermint ~ $ inxi -Fxz
System:    Host: peppermint Kernel: 4.4.0-24-generic x86_64 (64 bit gcc: 5.3.1)
           Desktop: N/A Distro: Peppermint Seven
Machine:   System: Dell (portable) product: Inspiron 1545
           Mobo: Dell model: 0G848F Bios: Dell v: A10 date: 07/17/2009
CPU:       Dual core Pentium T4300 (-MCP-) cache: 1024 KB
           flags: (lm nx sse sse2 sse3 ssse3) bmips: 8379
           clock speeds: max: 2100 MHz 1: 1600 MHz 2: 1600 MHz
Graphics:  Card: Intel Mobile 4 Series Integrated Graphics Controller
           bus-ID: 00:02.0
           Display Server: X.Org 1.18.3 drivers: intel (unloaded: fbdev,vesa)
           Resolution: 1366x768@59.97hz
           GLX Renderer: Mesa DRI Mobile Intel GM45 Express
           GLX Version: 2.1 Mesa 11.2.0 Direct Rendering: Yes
Audio:     Card Intel 82801I (ICH9 Family) HD Audio Controller
           driver: snd_hda_intel bus-ID: 00:1b.0
           Sound: Advanced Linux Sound Architecture v: k4.4.0-24-generic
Network:   Card-1: Marvell 88E8040 PCI-E Fast Ethernet Controller
           driver: sky2 v: 1.30 port: de00 bus-ID: 09:00.0
           IF: enp9s0 state: down mac: <filter>
           Card-2: Broadcom BCM4322 802.11a/b/g/n Wireless LAN Controller
           driver: wl bus-ID: 0c:00.0
           IF: wlp12s0 state: up mac: <filter>
Drives:    HDD Total Size: 337.6GB (1.7% used)
           ID-1: /dev/sda model: WDC_WD3200BEVT size: 320.1GB temp: 49C
           ID-2: USB /dev/sdb model: Ultra_Fit size: 15.6GB temp: 0C
           ID-3: USB /dev/sdc model: Multi size: 2.0GB temp: 0C
Partition: ID-1: / size: 2.4G used: 1.8G (82%) fs: overlay dev: N/A
           ID-2: swap-1 size: 1.03GB used: 0.00GB (0%) fs: swap dev: /dev/zram0
           ID-3: swap-2 size: 1.03GB used: 0.00GB (0%) fs: swap dev: /dev/zram1
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 50.0C mobo: N/A
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 181 Uptime: 1:03 Memory: 835.6/3912.7MB
           Init: systemd runlevel: 5 Gcc sys: 5.4.0
           Client: Shell (bash 4.3.421) inxi: 2.2.35

19
Networking / Updated Broadcom wl wifi driver.
« on: July 21, 2016, 04:25:56 pm »
Reloading Synaptic will provide an updated Broadcom wl driver.
It is provided via broadcom-sta-dkms version 6.30.223.271-2

I find this driver to provide a considerable improvement over b43 on my
Dell Inspiron 1545.

I'm using 64-bit Peppermint 7 as a LiveUSB and now getting about twice
the download rate and a steadier connection with the new wl vs the older b43.

I'd be interested in other's experience in this regard.



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