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Possible external USB hard drive problem - Forums Linux

Possible external USB hard drive problem - Forums Linux

Possible external USB hard drive problem

Posted: 03 Sep 2006 03:24 AM PDT

On 3 Sep 2006 07:24:59 -0700, "Glenn Hutchings" <com> wrote:
 

Detection order of /dev/sdX? Maybe BIOS tried booting USB drive? 

Unless you effectively copied /usr/local -> / :( 

Not looking over your shoulder, so can only guess, if it was a box here
I'd boot some install/rescue CDROM and have a look around, maybe temp
install HDD from target to another box for a look -- lots of options...

Grant.
--
http://bugsplatter.mine.nu/

Advice for setting up partitions/Semi standard usage

Posted: 02 Sep 2006 07:34 PM PDT

On Sat, 02 Sep 2006 21:34:18 -0500, TwistedDreams wrote:
 

I'll suggest ~6 gig / which will allow more room for updates.

The 4 gig var seems to be a waste.

On my multi-boot system
# du -hs /var
246M /var <=== Mandriva Linux

# du -hs /fc5/var
138M /fc5/var <=== Fedora Core

# du -hs /suse/var
126M /suse/var

# du -hs /kubuntu/var
310M /kubuntu/var

# du -hs /ubuntu/var
221M /ubuntu/var

My suggestions: common /tmp and swap partitions with all other
directories installed in the / partition for each distribution.

I would create a common /local partition to contain common stuff
between distributions.
Example: /local/opt for common third party
application installations, like firefox, java, from the third party
vendor.
/local/downloads partition to hold the download archives.



I have a /site partition for my own creations shared accross distros

$ ls /site
bin config doc ppp sounds

For user stuff, I have a /accounts partition.
Common stuff is linked from /home/bittwister to /accounts/bittwister.
Chopped down ls -al $HOME/ examples:

.bash_logout -> /accounts/bittwister/.bash_logout
.bash_profile -> /accounts/bittwister/.bash_profile
.bashrc -> /accounts/bittwister/.bashrc
bin -> /accounts/bittwister/bin/
comp -> /accounts/bittwister/comp/
.cron -> /accounts/bittwister/.cron
firefox.tar -> /accounts/bittwister/firefox.tar
.jnewsrc -> /accounts/bittwister/.jnewsrc
.mozilla -> /accounts/bittwister/.mozilla

Now I can backup /local/downloads, /site and /accounts on one cd.

Different distributions can have different revisions of the desktop
manager which could step on each other so everything else is in / like
/home.

Your last problem is user/group ids. They can change between
releases and each distro may have different starting numbers for
users.

$ grep bittwister /etc/passwd
bittwister:x:500:500:Bit Twister:/home/bittwister:/bin/bash

$ grep bittwister /suse/etc/passwd
bittwister:x:1000:100:Bit Twister:/home/bittwister:/bin/bash

From now on, I will create the /junk/ account as the first user
account for testing.

All my other user accounts will be 1500+ so I can just
cut/paste to bottom of /etc/passwd, /etc/group and /etc/ shadow on new
installs.

A suggestion for app/system testing. I keep spare ~6 gig partitions
for testing new system/app releases/updates and keep one as
production hot backup.

I'll do a clean install in a test partition, install my custom changes
and if testing says ok, then it becomes the new production partition
and the old partition becomes a test partition.

For doing someting which might dink up the system, copy / into a spare
test partition, change fstab in test, add to my lilo boot loader, boot
test partition and play around.

cannot set system time

Posted: 02 Sep 2006 12:24 PM PDT

The Natural Philosopher wrote: 
.... 
 
 

Way back when the system clock had to be set manually. I don't remember when I
stopped seeing a need to do that it has been so long, on the order of 15 years.
You can boot a computer today without a network connection and get the correct
time. That is from the system wristwatch type clock.
 

I do not have a program called setclock, never heard of it. There is ntpdate
and rdate that I know of. I checked the ntpdate man and "too hard" to guess so I
included what works for me.

Also instead of an ip number set often ntp.yourisp.com works.

--
All news coming from Israel is under strict military censorship. Why would
anyone believe a word? This includes all foreign news services.
-- The Iron Webmaster, 3682
nizkor http://www.giwersworld.org/nizkook/nizkook.phtml
antisemitism http://www.giwersworld.org/antisem/ a1

fdisk and reiserfs

Posted: 01 Sep 2006 06:00 AM PDT

On 2006-09-01, Jean-David Beyer <net> wrote: 

Well, either way, he won't be able to see a 'raiserfs' partition. Not
from Fdisk.

Davide

--
While preceding your entrance with a grenade is a good tactic in
Quake, it can lead to problems if attempted at work.
--C Hacking

raid 1 and df command

Posted: 31 Aug 2006 08:02 AM PDT

Allen Kistler <moc> did eloquently scribble: 
 

He said hardware RAID 1.
So, I think he's probably got a promise card.
The crappy ones that aren't supported by the latest kernels as anything but
disk controllers. Cos if he's got a REAL hardware raid card, the operating
system should've only been presented with 160gigs worth of hard disk space.

--
-----------------------------------------------------------------------------
| co.uk | Windows95 (noun): 32 bit extensions and a |
| | graphical shell for a 16 bit patch to an 8 bit |
|Andrew Halliwell BSc(hons)| operating system originally coded for a 4 bit |
| in |microprocessor, written by a 2 bit company, that|
| Computer Science | can't stand 1 bit of competition. |
-----------------------------------------------------------------------------

linux live

Posted: 31 Aug 2006 04:31 AM PDT

On Thu, 31 Aug 2006 17:01:49 +0530, Aravind
<bosch.com> wrote: 
64 MB is not enough RAM for most live CDs. Try Damn Small Linux.


--
No matter whether th' constitution follows th' flag or not, th' supreme
court follows th' iliction returns.
-- Mr. Dooley

reboot on reset

Posted: 30 Aug 2006 04:06 PM PDT

On 30 Aug 2006 16:06:27 -0700, com
<com> wrote: 
If ctrl-alt-del doesn't work, you can try the magic SysRq key. If you
have kernel source or a kernel-*-doc or linux-*-doc package installed,
the information should be in Documentation/sysrq.txt.gz. (Magic SysRq
has to be enabled in the kernel configuration.)


--
APL is a natural extension of assembler language programming;
....and is best for educational purposes.
-- A. Perlis

ext3 overhead - switch to another fs?

Posted: 29 Aug 2006 02:23 PM PDT

In comp.os.linux.setup com: 
 
 

[..]
 

LOL...I had read your initial post and was really curious about
it. Big thx for coming back and clearing things up!

Good luck

--
Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
mail: echo qr | perl -pe 'y/a-z/n-za-m/'
#bofh excuse 202: kernel panic: write-only-memory (/dev/wom0)
capacity exceeded.

GRUB takes 30 seconds to load stage 2

Posted: 29 Aug 2006 06:15 AM PDT


Douglas Mayne wrote: 

Thanks for the advice, Douglas. I think I've solved the problem now by
changing which drives are masters/slaves etc.

My original setup had both my harddrives on one IDE cable, with my
primary one being the master. I had two DVD drives on the other IDE
cable.

Having switched it so that both hard-drives are on different IDEs
(primary is master on IDE1, and secondary drive is slave on IDE2) it
seems to work fine.

No more Grub waits :-)

- Duncan Jones

Serious problem with Linux on an old PC

Posted: 29 Aug 2006 03:37 AM PDT

Matt Giwer wrote: 

I have.

A lot depends on the amount of RW its doing. I have a friend who
evaluates extremely large mathematical matrices on a 24x7 basis..each
one is many times too large for physical memory, and the disk activity
has to be seen to be believed.

He gets about 18 months out of an IDE disk.

When running big SCSI equipped RAIDED mail servers, we had failures
after about three years.

OTOH or public DNS servers lasted forever..far less activity, nice cool
machine room etc. etc..

Constant seeks and headup/headdown seem to be worse than just spinning
away..

Trouble installing RHEL4.3 from external USB DVD drive

Posted: 28 Aug 2006 10:49 PM PDT

LENHOF Jean-Yves wrote: 

Unfortunately, I have a laptop, and not a BladeCenter, although it's
also IBM.

USB flash drives on FC3 are incredibly slow!

Posted: 28 Aug 2006 11:04 AM PDT

On Tue, 29 Aug 2006 15:20:44 +0100, The Natural Philosopher wrote:
 

Will do, but it may be a while. I'll be changing HDDs for FC5 and I'm
in the middle of a project.

Regards,
Charles Sullivan

bluetooth linux box not discoverable?

Posted: 28 Aug 2006 04:00 AM PDT

On Tue, 29 Aug 2006 11:21:39 -0700, -r dind wrote:
 

Congrats. good for you.

Dave