Here's my post:
Hi Sun Managers,
I've got a 4mm tape that is not in the st.conf file from Solaris 2.5. I did
add the lines so that this tape is working under solaris 2.5.
My question is :
If I want to restore a full backup of /usr from that tape, I must boot
of the cdrom and mount that partition over /mnt and do a full restore.
But this tape is not working under vanilla st.conf file...
What can I do ? Is there a way to modify the st.conf file from the
mini-root booted from the cdrom and load that config again ?
Thank's.
Simon.
-- Simon-Bernard Drolet E-mail: Simon-Bernard.Drolet@Sisca.qc.ca Analyste systeme No.tel: (819) 564-4003 ext.284 Sisca Inc, Sherbrooke, Quebec No.fax: (819) 569-8597 #include <std/disclaimer.h> /* http://www.sisca.qc.ca */A lot of person suggest to used a second drive to do backup on that drive and modify /etc/vfstab to use that second drive. After that, you can boot with the new drive, modify the original one and go back.
Second solution is to keep a copy of the new st.conf. When you boot from cdrom, after that you can do a modload of the file st.conf. See the man page for modload.
I used the first one, but I'm still curious to know if the second solution REALLY works well... In case of a real crash...
Here's the reply i did received:
>From dave@endeavour.exar.com Thu Feb 8 09:41 EST 1996 Date: Thu, 8 Feb 1996 06:44:36 -0800 (PST) From: Dave Haut <dave@endeavour.exar.com> To: simdro@sisca.qc.ca Subject: Re: How to restore full backup over new partition if tape is not in st.conf
Simadro,
I suggest that you do a "workaround", like restoring /usr to a directory ( like /home/usr, for example ) from your 4mm tape, then boot from cdrom and mount /usr and /home/usr and restore /usr that way, for example,
1.) boot from cdrom
# mkdir /mnt1 # mount /dev/dsk/whatever_usr_is /mnt # mount /dev/dsk/whatever_homeusr_is /mnt1 # cd /mnt # ufsdump 0f - /mnt1 | ufsrestore vrf -
This should do it. Good Luck !!
--------------------------------- _ /| Dave Haut \,o.O' Sys Admin =(___)= EXAR Corporation U dave@exar.com (510) 438-7570 ---------------------------------
rom tkennedy@phoenix.csc.calpoly.edu Thu Feb 8 12:23 EST 1996 From: Todd Michael Kennedy <tkennedy@phoenix.csc.calpoly.edu> Subject: Re: How to restore full backup over new partition if tape is not in st.conf To: simdro@sisca.qc.ca Date: Thu, 8 Feb 1996 09:26:01 -0800 (PST) MIME-Version: 1.0 Content-Transfer-Encoding: 7bit
Last time you said... > >If I want to restore a full backup of /usr from that tape, I must boot >of the cdrom and mount that partition over /mnt and do a full restore. >But this tape is not working under vanilla st.conf file... > >What can I do ? Is there a way to modify the st.conf file from the >mini-root booted from the cdrom and load that config again ? > >Thank's. > >Simon. >-- >Simon-Bernard Drolet E-mail: Simon-Bernard.Drolet@Sisca.qc.ca >Analyste systeme No.tel: (819) 564-4003 ext.284 >Sisca Inc, Sherbrooke, Quebec No.fax: (819) 569-8597 >#include <std/disclaimer.h> /* http://www.sisca.qc.ca */
Simon, Actually, there's an easier way to do this. You need to have a spare partition of the same size as your current /usr partition. If you can still boot from your HD, do it. That way you have the modified st.conf file. Now, mount a _new_ usr partition in /mnt. Leaving the current one be. Do your restore and modify /etc/vfstab to point to this new partition for /usr. When you reboot, you'll have your restored /usr. Good luck.
Best Regards, Todd
-- "Drawing on my fine command of language, I said nothing."
>From joshr@enternet.com Thu Feb 8 12:49 EST 1996 Mime-Version: 1.0 Date: Thu, 8 Feb 1996 09:54:57 -0800 To: Simon-Bernard Drolet <simdro@sisca.qc.ca> From: joshr@enternet.com (Josh Rabinowitz) Subject: Re: How to restore full backup over new partition if tape is not in st.conf
Simon: I have the same situation with my APS Python 4mm tapde drive, I dont believe 4.1.x has kernal support for it, I need to modify st_conf.c and rebuild the kernel for it to work properly. A local sysadmin said I still may be able to read from the tape device with the kernel unable to recognize the tape drive but I share your concern. I assume this is a similar situation. Very interested in replies, joshr@enternet.com Josh Rabinotiz
>Hi Sun Managers, > >I've got a 4mm tape that is not in the st.conf file from Solaris 2.5. I did >add the lines so that this tape is working under solaris 2.5. > >My question is : > >If I want to restore a full backup of /usr from that tape, I must boot >of the cdrom and mount that partition over /mnt and do a full restore. >But this tape is not working under vanilla st.conf file... > >What can I do ? Is there a way to modify the st.conf file from the >mini-root booted from the cdrom and load that config again ? > >Thank's. > >Simon. >-- >Simon-Bernard Drolet E-mail: Simon-Bernard.Drolet@Sisca.qc.ca >Analyste systeme No.tel: (819) 564-4003 ext.284 >Sisca Inc, Sherbrooke, Quebec No.fax: (819) 569-8597 >#include <std/disclaimer.h> /* http://www.sisca.qc.ca */
------------------------------------------------------------------- Josh Rabinowitz Enternet Communications http://www.enternet.com
>From and@morgan.com Thu Feb 8 13:02 EST 1996 To: Simon-Bernard Drolet <simdro@sisca.qc.ca> Subject: Re: How to restore full backup over new partition if tape is not in st.conf X-url: http://lndevd1.morgan.com/~and X-face: =cP7su>gJcuSSc5q*e'k5nfzYs\:=k7s@Kw?RN)zjz_}C$SAZlFCU!&PwiXZ!>b#='D;uB/ {5;Pm@EN(q%s5d,(DF<177&o`Qh#D.;KgoCOlt-bc5o%Hy+m<XOMh(5n-~[*[4kZM>Ms^nit\("v7{ MaM6lbzlEB>c1d3Y[[wy'(k+Q`UFkP('Cbmt7T$C@TI3Z56JvJ8D1\fd>;b%Am7x:@aS!NF,}UTmQv V`@Vk;np/)c=dr79<PaP?7;~U\~zM;OThl2?/|'O~\BP7r%%[2m$#8 Mime-Version: 1.0 Date: Thu, 08 Feb 1996 17:51:30 +0000 From: Anderson McCammont <and@morgan.com>
I've never had to do this, but ... mini root is installed in swap on the local disk from the cd, so there's no real reason I can see why you couldn't modify st.conf
>>>Simon-Bernard Drolet said: > > > Hi Sun Managers, > > I've got a 4mm tape that is not in the st.conf file from Solaris 2.5. I did > add the lines so that this tape is working under solaris 2.5. > > My question is : > > If I want to restore a full backup of /usr from that tape, I must boot > of the cdrom and mount that partition over /mnt and do a full restore. > But this tape is not working under vanilla st.conf file... > > What can I do ? Is there a way to modify the st.conf file from the > mini-root booted from the cdrom and load that config again ? > > Thank's. > > Simon. > -- > Simon-Bernard Drolet E-mail: Simon-Bernard.Drolet@Sisca.qc.ca > Analyste systeme No.tel: (819) 564-4003 ext.284 > Sisca Inc, Sherbrooke, Quebec No.fax: (819) 569-8597 > #include <std/disclaimer.h> /* http://www.sisca.qc.ca */
-- Andy McCammont PGP/MIME and@morgan.com
>From rgrimsha@mailbox.syr.edu Thu Feb 8 17:05 EST 1996 Date: Thu, 8 Feb 1996 17:07:28 -0500 (EST) From: Randy Grimshaw <rgrimsha@mailbox.syr.edu> X-Sender: rgrimsha@forbin.syr.edu To: Simon-Bernard Drolet <simdro@sisca.qc.ca> Subject: Re: How to restore full backup over new partition if tape is not in st.conf Mime-Version: 1.0
You can boot the mini-root, and then mount the disk root as /mnt2 or something so that you can copy the tape driver and install it in the mini-root for the restore. <><Randall Grimshaw
On Wed, 7 Feb 1996, Simon-Bernard Drolet wrote:
> > > Hi Sun Managers, > > I've got a 4mm tape that is not in the st.conf file from Solaris 2.5. I did > add the lines so that this tape is working under solaris 2.5. > > My question is : > > If I want to restore a full backup of /usr from that tape, I must boot > of the cdrom and mount that partition over /mnt and do a full restore. > But this tape is not working under vanilla st.conf file... > > What can I do ? Is there a way to modify the st.conf file from the > mini-root booted from the cdrom and load that config again ? > > Thank's. > > Simon. > -- > Simon-Bernard Drolet E-mail: Simon-Bernard.Drolet@Sisca.qc.ca > Analyste systeme No.tel: (819) 564-4003 ext.284 > Sisca Inc, Sherbrooke, Quebec No.fax: (819) 569-8597 > #include <std/disclaimer.h> /* http://www.sisca.qc.ca */ > -- Simon-Bernard Drolet E-mail: Simon-Bernard.Drolet@Sisca.qc.ca Analyste systeme No.tel: (819) 564-4003 ext.284 Sisca Inc, Sherbrooke, Quebec No.fax: (819) 569-8597 #include <std/disclaimer.h> /* http://www.sisca.qc.ca */
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