Hi Guys,
I just tried to reboot my server, but it seems to be panicing and unable to mount the root disk.
The filesystem is supposed to be ufs, so im not sure why its talking about vfs.
At the moment it's just stuck in a loop of Reboot-panic-reboot.
Hallo together,
I have a litle problem with some of my external devices.
If I type mount there are some "panic" massages.
Is this a real mistake or is this a normal behavior of a Solaris 8 system ?
/export/jumpstart on /dev/dsk/c5t4d0s7 read/write/setuid/intr/largefiles/onerror... (4 Replies)
please help me about unixware 7.1.3
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msg:
vfs_mountroot:cannot mount root
%%%%%%
system don't start (1 Reply)
Presently I have mounted a disk as su. I believe only root can mount disks -- is this correct?
I had to run mozilla in the root account so I can download the new SuSE distribution to the new disk.
How can I mount the disk so non-root accounts can access the disk?
Thanks,
Siegfried (4 Replies)
I have a USB disk on a little NAS controller (NSLU2 running unslung 6.8) that I can access nicely with root with
mount -t cifs \\\\10.134.23.23\\DISK\ 2 /mnt/LKGD7F73A
However, when I run emacs from an user mode xterm prompt, emacs cannot read and write the files on /mnt/LKGD7F73A. Emacs can... (11 Replies)
Is it possible to mount a disk from a non-root account?
I'm developing a Java application which executes commands in the shell using the java.lang.Runtime.exec api, which runs fine for commands ls, df, etc., but for commands mount and umount, i have problems as I need to be root to eecute these.... (8 Replies)
i have a major problem, i renamed the ld.so.1 file.
so i want to reboot into single user mode / fail safe / cdrom single user but i will not mount the root disk.
if i look in /dev/dsk all i see is ide disks (cdrom) and no actual disks. (2 Replies)
I was following this tutorial on How install the rpmfusion nvidia drivers in Fedora 13:
F13, F12 & F11 Nvidia driver guides - FedoraForum.org
Here's the tutorial:
And this is what I did:
First I executed the following commands:
su
rpm -Uvh ... (0 Replies)
I see the following warning message during the boot sequence of any FreeBSD machine on stock hardware:
acd0: FAILURE: READ_BIG ILLEGAL REQUEST asc=0x64 ascq=0x00
Trying to mount root from ufs:/dev/ad6s1
What does this mean and is it really a warning or something that should be fixed?
... (2 Replies)
I have a Debian OpenBox that boots from any usb port. The Debian LXDE will only boot from one specific port. It needs to look at all of them to find and be root, and mount the root filesystem by UUID. Both are full installs to 16GB flash drives.
That is not being done.
It says during boot... (0 Replies)
We have two node cluster with OS disk mirrored under SVM. There is slight disk problem on one of the mirror disk causing cluster to panic.
Failure of one mirror disk causing VCS to panic the node. Why VCS is not able to write /var filesystem, as one of the disk is healthy.
... (1 Reply)
Discussion started by: amlanroy
1 Replies
LEARN ABOUT BSD
reboot
REBOOT(8) System Manager's Manual REBOOT(8)NAME
reboot - stopping and restarting the system
SYNOPSIS
/sbin/reboot [ -lqnhdarsfRD ]
/sbin/halt [ -lqndars ]
/sbin/fastboot [ -lqndarsRD ]
DESCRIPTION
2.11BSD is started by placing it in memory at location zero and transferring to its entry point. Since the system is not reentrant, it is
necessary to read it in from disk or tape each time it is to be boot strapped.
Rebooting a running system: When the system is running and a reboot is desired, shutdown(8) is normally used to stop time sharing and put
the system into single user mode. If there are no users then /sbin/reboot can be used without shutting the system down first.
Reboot normally causes the disks to be synced and allows the system to perform other shutdown activities such as resynchronizing hardware
time-of-day clocks. A multi-user reboot (as described below) is then initiated. This causes a system to be booted and an automatic disk
check to be performed. If all this succeeds without incident, the system is then brought up for multi-user operation.
Options to reboot are:
-l Don't try to tell syslogd(8) what's about to happen.
-q Reboot quickly and ungracefully, without shutting down running processes first.
-n Don't sync before rebooting. This can be used if a disk or the processor is on fire.
-h Don't reboot, simply halt the processor.
-d Dump memory onto the dump device, usually part of swap, before rebooting. The dump is done in the same way as after a panic.
-a Have the system booter ask for the name of the system to be booted, rather than immediately booting the default system (/unix).
-r Mount the root file system as read only when the system reboots. This is not supported by the kernel in 2.11BSD.
-s Don't enter multi-user mode after system has rebooted - stay in single user mode.
-f Fast reboot. Omit the automatic file system consistency check when the system reboots and goes multi-user. This is accomplished by
passing a fast reboot flag on to the rebooting kernel. This currently prevents the use of -f flag in conjunction with the -h (halt)
flag.
-D Set the autoconfig(8) debug flag. This is normally not used unless one is debugging the autoconfig program.
-R Tells the kernel to use the compiled in root device. Normally the system uses the device from which it was booted as the
root/swap/pipe/dump device.
Reboot normally places a shutdown record in the login accounting file /usr/adm/wtmp. This is inhibited if the -q or -n options are
present. Note that the -f (fast reboot) and -n (don't sync) options are contradictory; the request for a fast reboot is ignored in this
case.
Halt and fastboot are synonymous with ``reboot -h'' and ``reboot -f'', respectively.
Power fail and crash recovery: Normally, the system will reboot itself at power-up or after crashes if the contents of low memory are
intact. An automatic consistency check of the file systems will be performed, and unless this fails, the system will resume multi-user
operations.
SEE ALSO autoconfig(8), sync(2), utmp(8), shutdown(8), syslogd(8)3rd Berkeley Distribution May 24, 1996 REBOOT(8)