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Full Discussion: Strange /etc/passwd output
Top Forums UNIX for Advanced & Expert Users Strange /etc/passwd output Post 302562812 by Corona688 on Saturday 8th of October 2011 11:47:38 AM
Old 10-08-2011
Quote:
Originally Posted by COKEDUDE
On my Fedora system it allowed me to use uppercase letters. Is that a problem?
Here's a trick: Switch to a real terminal (ctrl-alt-f1 through ctrl-alt-f6, ctrl-alt-f7 or f8 gets you back to GUI), and login to a lowercase user in ALLCAPS.

Unless they ripped that out by now, it'll let you do it, and even switch to a special translation mode with no lowercase characters. It's a compatibility mode for really old terminals.

Some things may depend on usernames being all lowercase. Others might not. Best not to tempt fate.
This User Gave Thanks to Corona688 For This Post:
cokedude
 

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LEARN ABOUT NETBSD

sc

SC(4)							   BSD Kernel Interfaces Manual 						     SC(4)

NAME

     sc -- Sun Sun-2 SCSI bus host adaptor driver

SYNOPSIS

   sun2
     sc0 at mbmem0 addr 0x80000 ipl 2
     sc1 at mbmem0 addr 0x84000 ipl 2

   sun2 and sun4
     sc0 at vme0 addr 0x200000 irq 2 vec 0x40

DESCRIPTION

     The sc driver provides support for the Sun Microsystems "Sun-2" SCSI Bus Controller chipset found on various VME boards (Sun part #s
     501-1045, 501-1138, 501-1149, and 501-1167) and on the "Sun-2 SCSI/Serial" (Sun part # 501-1006) Multibus board.

     All versions of this driver can be configured with a flags directive in the config(1) file.  The values are bits in a bitfield, and are
     interpreted as follows:

	   0x0ff    Set bit (1<<target) to disable SCSI parity checking
	   0x100    Set this bit to disable DMA interrupts (poll)
	   0x200    Set this bit to disable DMA entirely (use PIO)

     For example: "flags 0x1ff" would disable DMA interrupts, and disable parity checking for targets 0-7.  The "target" is the SCSI ID number of
     a particular device on a particular SCSI bus.

SEE ALSO

     cd(4), ch(4), intro(4), scsi(4), sd(4), st(4)

AUTHORS

     Matt Fredette <fredette@NetBSD.org>,
     David Jones,
     Gordon Ross <gwr@NetBSD.org>,
     Adam Glass <glass@NetBSD.org>,
     Jason R. Thorpe <thorpej@NetBSD.org>.

BUGS

     This SCSI chipset is rumored to have bugs in its handling of SCSI parity, therefore it is recommended that you disable parity on all SCSI
     devices connected to this controller, and configure it with a 0x0ff value for its flags directive in the config(1) file.

     This chipset has no support for raising the ATN signal, so there is no way to ever schedule a MSG_OUT phase on the bus.  Currently, the
     driver will ultimately reset the bus if this phase is ever requested by the upper layer SCSI driver.

     This chipset has no support for SCSI disconnect/reselect.	This means that slow devices, such as tape drives, can hog, or "lock up" the SCSI
     bus.

     This driver has not been tested in combination with non-SCSI devices behind Emulex or Adaptec bridges, which are common in Sun 2s and in Sun
     Shoebox-type configurations.  These devices pre-date the SCSI-I spec, and might not behave the way the chipset code currently expects.

BSD
								   June 28, 2001							       BSD
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